CMS Forward, Small-x, and QCD (FSQ) Public Physics Results

Contact: cms-pag-conveners-fsq@cernNOSPAMPLEASE.ch (Hans van Haevermaet, Sunil Bansal)

Recent Highlights

DPS in same-sign WW Underlying event at 13TeV Measurement of long-range near-side two-particle angular correlations in pp collisions at sqrt(s)=13TeV Pseudorapidity distribution of charged hadrons in proton-proton collisions at sqrt(s)=13TeV

Publications

Preliminary Results

Past Results

The tables contain links to preliminary results (PAS) and published papers. Plots with good quality can be retrieved from the attached Twiki (twiki.gif) pages. If available, a link to a table with data points and information on a Rivet routine is also given.

Diffractive & exclusive production:

Analysis Public report Publication Plots & Tables Rivet Comment
Measurement of the total hadronic inelastic cross section in p-Pb at 5.02 TeV PAS-FSQ-13-006 FSQ-13-006 twiki.gif   (submitted to PLB) http://arxiv.org/abs/1509.03893
Measurement of pp diffraction cross sections at 7 TeV PAS-FSQ-12-005 FSQ-12-005 twiki.gif CMS_2015_I1356998 Phys. Rev. D 92, 012003 (2015) http://arxiv.org/abs/1503.08689

Study of exclusive two-photon production of WW pairs in pp collisions at 7 TeV, and constraints on anomalous quartic couplings PAS-FWD-12-010 FSQ-12-010 twiki.gif   JHEP 1307 (2013) 116 http://arxiv.org/abs/arXiv:1305.5596
Search for central exclusive gamma pair production and observation of central exclusive electron pair production in pp collisions at sqrt(s) = 7 TeV PAS-FWD-11-004 FWD-11-004 twiki.gif - JHEP 1211 (2012) 080 http://arxiv.org/abs/arXiv:1209.1666
Evidence for hard-diffractive dijet production in pp collisions at sqrt(s) = 7 TeV PAS-FWD-10-004 FWD-10-004 twiki.gif CMS_2012_I1184941 PRD 87 (2013) 012006 http://arxiv.org/abs/arXiv:1209.1805
Exclusive photon-photon production of muon pairs in proton-proton collisions at sqrt(s) = 7 TeV PAS-FWD-10-005 FWD-10-005 twiki.gif CMS_2011_I954992 JHEP 01 (2012) 052 http://arxiv.org/abs/arXiv:1111.5536
Forward energy flow, central track multiplicities and large rapidity gaps in W and Z boson events at 7 TeV pp collisions PAS-FWD-10-008 DP-2011-001 FWD-10-008 - - Eur. Phys. J. C72 (2012) 1839 http://arxiv.org/abs/arXiv:1110.0181
Observation of diffraction in proton-proton collisions at the LHC PAS-FWD-10-007 PAS-FWD-10-001 - - - -

Forward jets & small-x QCD physics studies:

Analysis Public report Publication Plots & Tables Rivet Comment
Leading charged particle and leading jet cross sections at small transverse momenta in pp collisions at sqrts = 8 TeV PAS-FSQ-12-032   twiki.gif    
Drell-Yan + jets cross sections at low and high invariant masses in pp collisions at 7 TeV PAS-FSQ-13-003   twiki.gif    
Forward-central Jet Correlations at sqrt(s) = 7 TeV PAS-FSQ-12-008   twiki.gif    
Measurement of pure electroweak production of a Z boson in association with forward/backward jets in proton-proton collisions at s1/2=8 TeV PAS-FSQ-12-035 - twiki.gif - Submitted to EPJC http://arxiv.org/abs/arXiv:1410.3153
Measurement of Low pT Jet Cross Sections in proton-proton Collisions at √s = 8 TeV PAS-FSQ-12-031   twiki.gif    

Measurement of four-jet production in proton-proton collisions at sqrt(s)=7 TeV PAS-FSQ-12-013   twiki.gif CMS_2013_I1273574 Phys.Rev. D89 (2014) 092010 http://arxiv.org/abs/arXiv:1312.6440
Inclusive hadron production (CMS+Totem) in pp at 8 TeV PAS-FSQ-12-026   twiki.gif CMSTOTEM_2014_1294140 Eur.Phys.J. C74 (2014) 10, 3053 http://arxiv.org/abs/1405.0722
Mueller-Navelet dijet azimuthal decorrelations in p-p at 7 TeV PAS-FSQ-12-002   twiki.gif    
Measurement of the electroweak production cross section of the Z boson with two forward-backward jets in pp collisions at sqrt(s) = 7 TeV PAS-FSQ-12-019 - twiki.gif - JHEP 10 (2013) 101 http://arxiv.org/abs/1305.7389
Measurement of inclusive and exclusive dijet production ratio at large rapidity intervals at sqrt(s) = 7 TeV PAS-FWD-10-014 FWD-10-014 twiki.gif CMS_2012_I1102908 EPJC 72 (2012) 2216; http://arxiv.org/abs/arXiv:1204.0696
Measurement of the Inclusive Production Cross Sections for Forward Jets and for Dijet Events with One Forward and One Central Jet in pp Collisions at sqrt(s) = 7 TeV PAS-FWD-10-003 PAS-FWD-10-006 FWD-11-002 twiki.gif CMS_2012_I1087342 JHEP 1206 (2012) 036 http://arxiv.org/abs/arXiv:1202.0704
Measurement of energy flow at large pseudorapidities in pp collisions at sqrt(s) = 0.9 and 7 TeV PAS-FWD-10-011 PAS-FWD-10-002 FWD-10-011 - CMS_2011_S9215166 JHEP 11 (2011) 148 http://arxiv.org/abs/arXiv:1110.0211

Multi-Parton Interactions (MPI), Underlying Event (UE) & soft QCD studies:

For comparisons with more recent Monte Carlo tunes, see PAS-GEN-14-001

Analysis Public report Publication Plots & Tables Rivet Comment
Studies of 2 b-jet + 2 jet production in proton-proton collisions at 7 TeV PAS-FSQ-13-010 FSQ-13-010 twiki.gif    
Study of double parton scattering in the photon + 3 jets final state in proton-proton collisions at sqrt(s)=7 TeV PAS-FSQ-12-017 FSQ-12-017 twiki.gif    
Measurement of the underlying event activity using charged particle jets in proton-proton collisions at 2.76 TeV [http://cds.cern.ch/record/1968979?ln=en][PAS-FSQ-12-025] FSQ-12-025 twiki.gif    
Multidimensional analysis of Bose-Einstein correlations in p-p collisions at 2.76 and 7 TeV PAS-FSQ-13-002 FSQ-13-002 twiki.gif    
Underlying event, b-quark fragmentation and hadronization properties in tbart events TOP-13-007 TOP-13-007 twiki.gif   Analysis actually belongs to TOP not FSQ group

Properties of jets and underlying event as a function of particle multiplicity in p-p collisions at sqrt(s) = 7 TeV PAS-FSQ-12-022 FSQ-12-022 twiki.gif CMS_2013_I1261026 Eur.Phys.J. C73 (2013) 2674 http://arxiv.org/abs/1310.4554
Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV PAS-FSQ-12-028 FSQ-12-028 twiki.gif CMS_2013_I1272853 JHEP 03 (2014) 032 http://arxiv.org/abs/arXiv:1312.5729
Study of the underlying event at forward rapidity in proton-proton collisions at the LHC PAS-FWD-11-003 FWD-11-003 twiki.gif CMS_2013_I1218372 JHEP 04 (2013) 072 http://arxiv.org/abs/arXiv:1302.2394
Measurement of the Underlying Event Activity using Leading Tracks in pp at 7 TeV PAS-FSQ-12-020 - twiki.gif - -
Measurement of the Underlying Event Activity with the Jet Area/Median Approach at 0.9,7 TeV PAS-QCD-10-005 QCD-10-021     JHEP 08(2012)130 http://arxiv.org/abs/1207.2392
Measurement of strange particle production in underlying events in proton-proton collisions at the LHC PAS-QCD-11-010 - twiki.gif CMS_QCD_11_010 Phys.Rev. D88 (2013) 052001 http://arxiv.org/abs/arXiv:1305.6016
Spectra of charged pions, kaons, protons in pp collisions at sqrt(s) = 0.9, 2.76 and 7 TeV identified via tracker energy loss PAS-FSQ-12-014 FSQ-12-014 twiki.gif Compressed Zip archive - Eur. Phys. J. C72 (2012) 2164 http://arxiv.org/abs/arXiv:1207.4724
Measurement of the Underlying Event Activity in the Drell-Yan process in proton-proton collisions at sqrt(s) = 7 TeV PAS-QCD-10-040 QCD-11-012 twiki.gif CMS_QCD_11_012 Eur. Phys. J. C 72 (2012) 2080 http://arxiv.org/abs/arXiv:1204.1411
Measurement of the inelastic pp cross section at sqrt(s) = 7 TeV via pile-up event counting & single-side triggered events PAS-FWD-11-001 ( PAS-QCD-11-002) - twiki.gif ( twiki.gif ) CMS_2012_I1193338 PLB 722 (2013) 5 http://arxiv.org/abs/arXiv:1210.6718
Pre-2012 results:

Pseudorapidity distributions of charged particles in pp collisions at sqrt(s)= 7~!TeV with at least one central charged particle PAS-QCD-10-024 - twiki.gif CMS_QCD_10_024 -
Charged particle transverse momentum spectra in pp collisions at sqrt(s) = 0.9 and 7 TeV PAS-QCD-10-008 QCD-10-008 twiki.gif - JHEP 08 (2011) 086 http://arxiv.org/abs/arXiv:1104.3547
Observation of Long-Range, Near-Side Angular Correlations in Proton-Proton Collisions at the LHC PAS-QCD-10-002 QCD-10-002 twiki.gif txt.gif - JHEP 09 (2010) 091 http://arxiv.org/abs/arXiv:1009.4122
First measurement of Hadronic Event Shapes in pp Collisions at 7 TeV PAS-QCD-10-013 QCD-10-013 twiki.gif CMS_2011_S8957746 Phys. Lett. B699 (2011) 48 http://arxiv.org/abs/arXiv:1102.0068
Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 7 TeV and comparison with sqrt(s) = 0.9 TeV PAS-QCD-10-010 QCD-10-010 twiki.gif html.gif CMS_2011_S9120041 JHEP 09 (2011) 109 http://arxiv.org/abs/arXiv:1107.0330
Strange Particle Production in pp collisions at sqrt(s) = 0.9 and 7 TeV PAS-QCD-10-007 QCD-10-007 twiki.gif CMS_2011_S8978280 JHEP 05 (2011) 064 http://arxiv.org/abs/arXiv:1102.4282
Charged particle multiplicities in pp interactions at sqrt(s) = 0.9, 2.36, and 7 TeV PAS-QCD-10-004 QCD-10-004 twiki.gif html.gif CMS_2011_S8884919 JHEP 01 (2011) 079 http://arxiv.org/abs/arXiv:1011.5531
First Measurement of the Underlying Event Activity at the LHC with sqrt(s) = 0.9 TeV PAS-QCD-10-001 QCD-10-001 html.gif - Eur. Phys. J. C70 (2010) 555 http://arxiv.org/abs/arXiv:1006.2083
Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at sqrt(s)= 7 TeV - QCD-10-006 twiki.gif html.gif CMS_2010_S8656010 Phys. Rev. Lett. 105 (2010) 022002 http://arxiv.org/abs/arXiv:1005.3299
Measurement of Bose-Einstein correlations in pp collisions at sqrt(s) = 0.9 and 7 TeV - QCD-10-023 twiki.gif - JHEP 05 (2011) 029 http://arxiv.org/abs/arXiv:1101.3518
First Measurement of Bose-Einstein Correlations in proton-proton Collisions at sqrt(s) =0.9 and 2.36 TeV at the LHC PAS-QCD-10-003 QCD-10-003 twiki.gif - Phys. Rev. Lett. 105 (2010) 032001 http://arxiv.org/abs/arXiv:1005.3294
Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at sqrt(s) = 0.9 and 2.36 TeV - QCD-09-010 twiki.gif html.gif CMS_2010_S8547297 JHEP 02 (2010) 041 http://arxiv.org/abs/arXiv:1002.0621

Public event display DP notes and Further Studies

Future studies analysis Public report
CMS-TOTEM feasibility studies for single diffractive Z, W, J/ψ and central exclusive dijet production in pp collisions at √s = 13 TeV FSQ-14-001

Type of events Public DP note
CASTOR-TOTEM event display: electron and charged hadron candidates DP 2014/002
CMS-TOTEM event display: high-pT jets with two leading protons DP 2013/004
Central high-pT jet production during low pile-up, high β∗ run at s√=8 TeV DP 2013/006
Event displays of W and Z Bosons with Large Rapidity Gaps DP 2011/001
Event displays of diffractive dijets at 7 TeV DP 2010/036
Event display of exclusive dimuons at 7 TeV DP 2010/035
Forward Jets in proton-proton Collisions at s√=7~!TeV in CMS DP 2010/026
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