Public CMS Luminosity Information

Overview

As of 2018 CMS is able to provide a luminosity measurement from a number of different sources both in real time (online) to the LHC and CMS, and offline with later analysis to provide the best luminosity measurements for physics analysis. Online the luminosity measurements are provided by the Pixel Luminosity Telescope (PLT), the Hadronic Forward (HF) calorimeter, the Beam Conditions Monitor-Fast (BCM1F), and the Drift Tubes (DT). Offline, in addition to the preceding, the Pixel Cluster Counting (PCC) algorithm is used with the main CMS pixel detector, and vertex counting is also available. For algorithms, the PLT uses the zero-counting method (PLTZ) and the HF uses both a ET-sum method (HFET) and an occupancy based method (HFOC).

In Run 1, the luminosity measurement at CMS was based on the HF occupancy measurement (HFOC). Details on the systematic uncertainties for run 1 corresponding to the normalization constant can be found in PAS LUM-13-001.

The luminosity is calibrated using separation scans first pioneered by Simon van der Meer at the ISR. These "van der Meer scans" allow for determination of the absolute luminosity as a function of beam parameters and so can be used to develop a calibration for the individual luminometers. For more documentation on the procedure and its systematic uncertainties, please see the LUM POG physics results page.

Other public luminosity information

• CMS public luminosity results and plots (Run 2 and 3)
• CMS public luminosity results and plots (Run 1)
• CMS public data quality information

Run 3 annual charts of luminosity

2022 proton-proton collisions at 13.6TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 13.6 TeV center-of-mass energy in 2022. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies). Note that the special runs at injection energy (450 GeV) are not included in these plots.

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2022 Cumulative measured luminosity versus day delivered. Note that this plot may not include data taken within the most recent 24 hours.	Day-by-day integrated luminosity, 2022 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2022 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

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Cumulative week-by-week integrated luminosity, 2022 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2022 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2022 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

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Average pileup in 2022 Mean number of interactions per bunch crossing for the 2022 pp run at 13.6 TeV, using the online luminosity values. The plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments. It has been decided in the LHC community leave this value the same as in Run2 even though the energy in Run3 is slightly increased.

Run 2 annual charts of luminosity

The raw data used to generate these plots (pp runs at nominal energy only) can be found in CSV form here.

2018 proton-proton collisions at 13 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 13 TeV center-of-mass energy in 2018. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies). Note that the special runs at injection energy (450 GeV) are not included in these plots.

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2018 Cumulative measured luminosity versus day delivered. These plots use the approved physics calibration for the 2018 pp run (LUM-18-002). Note that this plot may not include data taken within the most recent 24 hours.	Day-by-day integrated luminosity, 2018 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2018 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative week-by-week integrated luminosity, 2018 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2018 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2018 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

pdf version of the above plot logarithmic y-scale version: png pdf

pdf version of the above plot logarithmic y-scale version: png pdf

Average pileup in 2018 Mean number of interactions per bunch crossing for the 2018 pp run at 13 TeV, using the online luminosity values. The two plots shown here use the same data but with different values assumed for the minimum bias cross section. The left plot uses the "CMS recommended" value of 69.2 mb, which is determined by finding the best agreement with data and is recommended for CMS analyses. The right plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.

2018 lead-lead collisions at 5.02 TeV/nucleon "HI run"

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams in the lead-lead run at a 5.02 TeV center-of-mass energy per nucleon ("HI run") in 2018. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

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Cumulative day-by-day integrated luminosity, 5 TeV/nucleon PbPb, 2018 Cumulative luminosity versus day delivered during the 5.02 TeV/nucleon PbPb HI run in 2018. These plots use the current best preliminary offline calibrations.	Day-by-day integrated luminosity, 5 TeV/nucleon PbPb, 2018 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV/nucleon PbPb, 2018 Peak instantaneous luminosity on a day-by-day basis.

2017 proton-proton collisions at 13 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 13 TeV center-of-mass energy in 2017. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies). Please note: These plots include the special low-pileup running period at the end of the year (Run2017H). They do not include the 5 TeV run prior to that (Run2017G), which is below.

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2017 Cumulative measured luminosity versus day delivered. This plot uses the approved physics calibration for the 2017 pp run (LUM-17-004).	Day-by-day integrated luminosity, 2017 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2017 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative week-by-week integrated luminosity, 2017 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2017 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2017 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

pdf version of the above plot logarithmic y-scale version: png pdf

pdf version of the above plot logarithmic y-scale version: png pdf

Average pileup in 2017 Mean number of interactions per bunch crossing for the 2017 pp run at 13 TeV. The two plots shown here use the same data but with different values assumed for the minimum bias cross section. The left plot uses the "CMS recommended" value of 69.2 mb, which is determined by finding the best agreement with data and is recommended for CMS analyses. The right plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.

pdf version of the above plot logarithmic y-scale version: png pdf

pdf version of the above plot logarithmic y-scale version: png pdf

Average pileup in 2017 low-pileup run Mean number of interactions per bunch crossing for the 2017 pp run with low pileup conditions (Run2017H) at 13 TeV. The left plot uses the "CMS recommended" value of 69.2 mb, which is determined by finding the best agreement with data and is recommended for CMS analyses. The right plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.

2017 proton-proton reference run at 5.02 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams in the proton-proton "reference run" at a 5.02 TeV center-of-mass energy in 2017. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 5 TeV pp, 2017 Cumulative luminosity versus day delivered during the 5.02 TeV pp reference run in 2017. This plot uses the current offline preliminary calibration for the 5 TeV run.	Day-by-day integrated luminosity, 5 TeV pp, 2017 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV pp, 2017 Peak instantaneous luminosity on a day-by-day basis.

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Average pileup in the 5 TeV pp, 2017 run Mean number of interactions per bunch crossing for the 5 TeV pp, 2017 run (Run2017G). The cross section is taken to be 65 mb.

2016 proton-proton collisions at 13 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 13 TeV center-of-mass energy in 2016. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2016 Cumulative measured luminosity versus day delivered. This measurement uses the best available offline measurement and calibrations.	Day-by-day integrated luminosity, 2016 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2016 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative week-by-week integrated luminosity, 2016 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2016 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2016 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

pdf version of the above plot logarithmic y-scale version: png pdf

pdf version of the above plot logarithmic y-scale version: png pdf

Average pileup in 2016 Mean number of interactions per bunch crossing for the 2016 pp run at 13 TeV. The two plots shown here use the same data but with different values assumed for the minimum bias cross section. The left plot uses the "CMS recommended" value of 69.2 mb, which is determined by finding the best agreement with data and is recommended for CMS analyses. The right plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.

2016 proton-lead collisions at 8.16 TeV/nucleon

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-lead collisions at a 8.16 TeV center-of-mass energy per nucleon in 2016. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

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Cumulative day-by-day integrated luminosity, 8 TeV/nucleon pPb, 2016 Cumulative luminosity versus day delivered during the 8.16 TeV/nucleon pPb run in 2016. This plot uses the approved physics calibration for this run.	Day-by-day integrated luminosity, 8 TeV/nucleon pPb, 2016 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 8 TeV/nucleon pPb, 2016 Peak instantaneous luminosity on a day-by-day basis.

2016 low-energy proton-lead collisions at 5.02 TeV/nucleon

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-lead collisions at a 5.02 TeV center-of-mass energy per nucleon in 2016. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

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Cumulative day-by-day integrated luminosity, 5 TeV/nucleon pPb, 2016 Cumulative luminosity versus day delivered during the 5.02 TeV/nucleon pPb run in 2016. This measurement uses the values published online by CMS.	Day-by-day integrated luminosity, 5 TeV/nucleon pPb, 2016 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV/nucleon pPb, 2016 Peak instantaneous luminosity on a day-by-day basis.

2015 proton-proton collisions at 13 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 13 TeV center-of-mass energy in 2015. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2015 Cumulative measured luminosity versus day delivered. These measurements use the approved calibration documented in CMS PAS LUM-15-001.	Day-by-day integrated luminosity, 2015 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2015 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative week-by-week integrated luminosity, 2015 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2015 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2015 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

pdf version of the above plot logarithmic y-scale version: png pdf

pdf version of the above plot logarithmic y-scale version: png pdf

Average pileup in 2015 Mean number of interactions per bunch crossing for the 2015 pp run at 13 TeV. The two plots shown here use the same data but with different values assumed for the minimum bias cross section. The left plot uses the "CMS recommended" value of 69.2 mb, which is determined by finding the best agreement with data and is recommended for CMS analyses. The right plot uses the "LHC standard" value of 80 mb, which is taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.

2015 proton-proton reference run at 5.02 TeV

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams in the proton-proton run at a 5.02 TeV center-of-mass energy ("reference run") in 2015. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative day-by-day integrated luminosity, 5 TeV pp, 2015 Cumulative luminosity versus day delivered during the 5.02 TeV pp reference run in 2015. These measurements use the approved calibration documented in CMS PAS LUM-16-001.	Day-by-day integrated luminosity, 5 TeV pp, 2015 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV pp, 2015 Peak instantaneous luminosity on a day-by-day basis.

2015 lead-lead collisions at 5.02 TeV/nucleon "HI run"

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams in the lead-lead run at a 5.02 TeV center-of-mass energy per nucleon ("HI run") in 2015. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf
Cumulative day-by-day integrated luminosity, 5 TeV/nucleon PbPb, 2015 Cumulative luminosity versus day delivered during the 5.02 TeV/nucleon PbPb HI run in 2015. This measurement uses a preliminary calibration.	Day-by-day integrated luminosity, 5 TeV/nucleon PbPb, 2015 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV/nucleon PbPb, 2015 Peak instantaneous luminosity on a day-by-day basis.

Multi-year plots

Integrated and peak luminosity, 2010-2022 (run 1 + run 2 + run 3)

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Delivered luminosity versus time for 2010-2012, 2015-2018, and 2022 (pp data only) Cumulative luminosity versus day delivered to CMS during stable beams for pp collisions at nominal center-of-mass energy. This is shown for data-taking in 2010 (green), 2011 (red), 2012 (blue), 2015 (purple), 2016 (orange), 2017 (light blue), 2018 (navy blue), and 2022 (brown). These plots use the best available offline calibrations for each year.	As the first plot, but with all years plotted on the same range.	Cumulative delivered and recorded luminosity versus time for 2010-2012, 2015-2018, and 2022 (pp data only) Delivered and recorded luminosity cumulative over all years during stable beams for pp collisions at nominal center-of-mass energy.
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As the first plot, but with each year starting at the endpoint of the previous year.	Peak luminosity versus time for 2010-2012 and 2015-2018 (pp data only) Peak luminosity versus day delivered to CMS during stable beams and for pp collisions. This is shown for data-taking in 2010 (green), 2011 (red), 2012 (blue), 2015 (purple), 2016 (orange), 2017 (light blue), 2018 (navy blue), and 2022 (brown).	As above, but with time periods where the LHC was not operating excluded from the plot.

Integrated and peak luminosity, 2015-2018 and 2022 (run 2 + run 3 only)

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Delivered luminosity versus time for 2015-2018 and 2022 (pp data only) As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3). These plots use the final approved physics calibrations for all years.	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3).	Cumulative delivered and recorded luminosity versus time for 2015-2018 and 2022 (pp data only) As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3).
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As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3).	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3).	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2) and √s = 13.6 TeV data from 2022 (Run 3).

Integrated and peak luminosity, 2015-2018 (run 2 only)

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Delivered luminosity versus time for 2015-2018 (pp data only) As above, but only with √s = 13 TeV data from 2015-2018 (Run 2). These plots use the final approved physics calibrations for all years.	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2).	Cumulative delivered and recorded luminosity versus time for 2015-2018 (pp data only) As above, but only with √s = 13 TeV data from 2015-2018 (Run 2).
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As above, but only with √s = 13 TeV data from 2015-2018 (Run 2).	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2).	As above, but only with √s = 13 TeV data from 2015-2018 (Run 2).

Interactions per crossing (pileup)

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Interactions per crossing (pileup) for 2011-2012 and 2015-2018 and 2022 Distribution of the average number of interactions per crossing (pileup) for pp collisions in 2011 (red), 2012 (blue), 2015 (purple), 2016 (orange), 2017 (light blue), 2018 (navy blue), and 2022 (brown). The overall mean values and the minimum bias cross sections are also shown. These plots use only data that passed the "golden" certification (i.e., all CMS sub-detectors were flagged to be ok for any kind of usage in physics analysis), and the "LHC standard" values for the minimum bias cross sections, which are taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.	Interactions per crossing (pileup) for 2011-2012 and 2015-2018 and 2022, stacked plot As the left plot, but with the distributions for each year stacked above the previous years.
pdf version of the above plot	pdf version of the above plot
Interactions per crossing (pileup) for 2015-2018 and 2022 Distribution of the average number of interactions per crossing (pileup) for pp collisions in 2015 (purple), 2016 (orange), 2017 (light blue), 2018 (navy blue), and 2022 (brown). The overall mean values and the minimum bias cross sections are also shown. These plots use only data that passed the "golden" certification (i.e., all CMS sub-detectors were flagged to be ok for any kind of usage in physics analysis), and the "LHC standard" values for the minimum bias cross sections, which are taken from the theoretical prediction from Pythia and should be used to compare to other LHC experiments.	Interactions per crossing (pileup) for 2015-2018 and 2022, stacked plot As the left plot, but with the distributions for each year stacked above the previous years.
pdf version of the above plot	pdf version of the above plot logarithmic y-scale version: png pdf pdf version of the above plot logarithmic y-scale version: png pdf
Interactions per crossing (pileup) for 2015-2018 As the first plot, but with the distributions shown as solid histograms and including only Run 2 (13 TeV) data. The overall mean values and the minimum bias cross sections are also shown.	Peak interactions per crossing versus time for 2010-2012 and 2015-2018 (pp data only) Peak interactions per crossing versus time for pp collisions (includes special runs), with each point representing a fill. This is shown for data-taking in 2010 (green), 2011 (red) and 2012 (blue) on the top plot and 2015 (purple), 2016 (orange), 2017 (light blue), and 2018 (navy blue) on the bottom plot.

Luminosity for heavy-ion (PbPb) runs

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Delivered luminosity versus time for 2015-2018 (PbPb data only) Cumulative luminosity versus day delivered to CMS during stable beams for PbPb collisions at nominal center-of-mass energy. This is shown for data-taking in 2015 (purple) and 2018 (navy blue).	Cumulative delivered and recorded luminosity versus time for 2015-2018 (PbPb data only) Delivered and recorded luminosity cumulative over all of Run 2 (2015-2018) during stable beams for pp collisions at nominal center-of-mass energy.

Luminosity for all ion runs (PbPb+pPb), proton-equivalent

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Delivered proton-equivalent luminosity versus time for 2015-2018 (PbPb+pPb data) Cumulative luminosity versus day delivered to CMS during stable beams for PbPb and pPb collisions at nominal center-of-mass energy. This is shown for data-taking in 2015 (purple), 2016 (orange) and 2018 (navy blue). This plot shows the proton-equivalent luminosity; that is, the values for the PbPb data have been scaled by A2=2082 and the values for the pPb data have been scaled by A=208.	As the first plot, but with all years plotted on the same range.	Cumulative delivered and recorded proton-equivalent luminosity versus time for 2015-2018 (PbPb+pPb data) As the first plot, but with all years cumulated together and showing delivered and recorded luminosity.

Run 1 annual charts of luminosity

2013 proton-lead 5.02 TeV/nucleon collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-lead collisions at a 5.02 TeV center-of-mass energy per nucleon in 2013. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 5 TeV/nucleon pPb, 2013 Cumulative measured luminosity versus day delivered for the 5.02 TeV/nucleon pPb run. These plots use the CMS online luminosity (HFOC).	Day-by-day integrated luminosity, 5 TeV/nucleon pPb, 2013 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 5 TeV/nucleon pPb, 2013 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

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Cumulative week-by-week integrated luminosity, 5 TeV/nucleon pPb, 2013 Cumulative measured luminosity versus week for the 5.02 TeV/nucleon pPb run. These plots use the CMS online luminosity (HFOC).	Week-by-week integrated luminosity, 5 TeV/nucleon pPb, 2013 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 5 TeV/nucleon pPb, 2013 Peak instantaneous luminosity on a week-by-week basis.

2013 proton-proton 2.76 TeV collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams in the proton-proton run at a 2.76 TeV center-of-mass energy in 2013. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

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Cumulative day-by-day integrated luminosity, 2.76 TeV pp, 2013 Cumulative luminosity versus day delivered during the 2.76 TeV pp low-energy run in 2013. These plots use the CMS online luminosity (HFOC).	Day-by-day integrated luminosity, 2.76 TeV pp, 2013 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2.76 TeV pp, 2013 Peak instantaneous luminosity on a day-by-day basis.

2012 proton-proton 8 TeV collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 8 TeV center-of-mass energy in 2012. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

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Cumulative day-by-day integrated luminosity, 2012 Cumulative measured luminosity versus day delivered.	Day-by-day integrated luminosity, 2012 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2012 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

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Cumulative week-by-week integrated luminosity, 2012 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2012 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2012 Peak instantaneous luminosity on a week-by-week basis.

Pileup distribution

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf

Average pileup in 2012 Mean number of interactions per bunch crossing for the 2012 pp run at 8 TeV.

2011 proton-proton 7 TeV collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 7 TeV center-of-mass energy in 2011. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative day-by-day integrated luminosity, 2011 Cumulative measured luminosity versus day delivered.	Day-by-day integrated luminosity, 2011 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2011 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative week-by-week integrated luminosity, 2011 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2011 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2011 Peak instantaneous luminosity on a week-by-week basis.

2011 lead-lead 2.76 TeV/nucleon collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-lead collisions at a 2.76 TeV center-of-mass energy per nucleon in 2011. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: pngpdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative day-by-day integrated luminosity, 2.76 TeV/nucleon PbPb, 2011 Cumulative measured luminosity versus day delivered for the 2.76 TeV/nucleon PbPb run.	Day-by-day integrated luminosity, 2.76 TeV/nucleon PbPb, 2011 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2.76 TeV/nucleon PbPb, 2011 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative week-by-week integrated luminosity, 2.76 TeV/nucleon PbPb, 2011 Cumulative measured luminosity versus week for the 2.76 TeV/nucleon PbPb run.	Week-by-week integrated luminosity, 2.76 TeV/nucleon PbPb, 2011 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2.76 TeV/nucleon PbPb, 2011 Peak instantaneous luminosity on a week-by-week basis.

2010 proton-proton 7 TeV collisions

These plots show the measured luminosity delivered by the LHC to CMS (blue) and recorded by CMS (orange) during stable beams and for proton-proton collisions at a 7 TeV center-of-mass energy in 2010. The delivered luminosity includes the time from the start of stable beams until the beam is dumped by the LHC (or stable beams end for other reasons, for example for beam studies).

Luminosity versus day

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative day-by-day integrated luminosity, 2010 Cumulative measured luminosity versus day delivered.	Day-by-day integrated luminosity, 2010 As the first plot, but not cumulative.	Peak day-by-day instantaneous luminosity, 2010 Peak instantaneous luminosity on a day-by-day basis.

Luminosity versus week

pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: pngpdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf	pdf version of the above plot logarithmic y-scale version: png pdf alternative color scheme, linear y-scale: png pdf alternative color scheme, logarithmic y-scale: png pdf
Cumulative week-by-week integrated luminosity, 2010 Cumulative measured luminosity versus week.	Week-by-week integrated luminosity, 2010 As the first plot, but not cumulative.	Peak week-by-week instantaneous luminosity, 2010 Peak instantaneous luminosity on a week-by-week basis.

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Contact: cms-pog-conveners-LUM@cernNOSPAMPLEASE.ch