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Fiducial/Differential and Simplified Template Cross Sections  
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Stage 1  
Changed:  
< <  Stage 1 ggF bins  
> >  Stage 1 gg → H bins  
Changed:  
< <  Stage 1 VBF bins  
> >  Stage 1 EW qqH bins  
Stage 1 VH bins 
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Fiducial/Differential and Simplified Template Cross Sections  
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This update follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings ( here and here).  
Changed:  
< <  The Rivet tool that performs the STXS classification has also been updated to implement the Stage 1.1 scheme.  
> >  The Rivet tool that performs the STXS classification has also been updated to implement the Stage 1.1 scheme.  
 
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PDF version  
Added:  
> >  CodeThe relevant code is hosted in the STXS gitlab area :
 
References
Run 2 results 
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Fiducial/Differential and Simplified Template Cross Sections  
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This update follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings ( here and here).  
Changed:  
< <  An updated version of the Rivet tool that performs the STXS classification will be made available shortly.  
> >  The Rivet tool that performs the STXS classification has also been updated to implement the Stage 1.1 scheme.  

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Fiducial/Differential and Simplified Template Cross Sections  
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Stage 1.1  
Changed:  
< <  This section describes an updated definition of the Stage 1 binning (Stage 1.1). This definition supersedes the one provided above, and should be used by new analyses performing STXS measurements. The changes with respect to Stage 1 are not backwardscompatible (due to the VBF process which required some reorganization).  
> >  This section describes an updated definition of the Stage 1 binning (Stage 1.1). This definition supersedes the one provided above, and should be used by new analyses performing STXS measurements. The changes with respect to Stage 1 are not backwardscompatible (due to the VBF process which required some reorganization). A note describing these new binnings in more detail is in preparation.  
Changed:  
< <  The updates follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings ( here and here).  
> >  This update follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings ( here and here).  
An updated version of the Rivet tool that performs the STXS classification will be made available shortly.  
Line: 77 to 77  
PDF version  
Changed:  
< <  NOTE: This process is defined as the usual gluonfusion production including gginduced EW corrections. This includes virtual EW corrections to the gg → H form factor as well as real EW corrections, corresponding to gg → ZH → qq H. (The latter are very small and are typically neglected at the present level of precision. Furthermore, the same binning should also be applied to the bbH process in analyses in which it is not distinguishable from gg → H, and the measurement of the total gg→H + bbH crosssection should be reported.  
> >  NOTE: This process is defined as the usual gluonfusion production including gginduced EW corrections. This includes virtual EW corrections to the gg → H form factor as well as real EW corrections, corresponding to gg → ZH → qq H. (The latter are very small and are typically neglected at the present level of precision.) Furthermore, the same binning should also be applied to the bbH process in analyses in which it is not distinguishable from gg → H. In this case, measurements should report the sum of gg→H + bbH for each bin.  

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Fiducial/Differential and Simplified Template Cross Sections  
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PDF version  
Changed:  
< <  NOTE: This process is defined as the usual gluonfusion production including gginduced EW corrections. This includes virtual EW corrections to the gg>H form factor as well as real EW corrections, corresponding to gg → ZH → qq H. (The latter are very small and are typically neglected at the present level of precision. Furthermore, it includes the bb → H process which at present is not distinguishable from gg → H.  
> >  NOTE: This process is defined as the usual gluonfusion production including gginduced EW corrections. This includes virtual EW corrections to the gg → H form factor as well as real EW corrections, corresponding to gg → ZH → qq H. (The latter are very small and are typically neglected at the present level of precision. Furthermore, the same binning should also be applied to the bbH process in analyses in which it is not distinguishable from gg → H, and the measurement of the total gg→H + bbH crosssection should be reported.  
 
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Changed:  
< < 
 
> > 

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Fiducial/Differential and Simplified Template Cross Sections  
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Stage 1.1  
Changed:  
< <  This section describes an updated definition of the Stage 1 binning (Stage 1.1). This definition supersedes the one provided above, and should be used by new analyses performing STXS measurements. The changes with respect to Stage 1 are not backwardscompatible.  
> >  This section describes an updated definition of the Stage 1 binning (Stage 1.1). This definition supersedes the one provided above, and should be used by new analyses performing STXS measurements. The changes with respect to Stage 1 are not backwardscompatible (due to the VBF process which required some reorganization).  
The updates follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings (here and here).
An updated version of the Rivet tool that performs the STXS classification will be made available shortly.  
Changed:  
< < 
 
> > 
 
PDF version  
Changed:  
< <  
> >  
Changed:  
< < 
 
> >  NOTE: This process is defined as the usual gluonfusion production including gginduced EW corrections. This includes virtual EW corrections to the gg>H form factor as well as real EW corrections, corresponding to gg → ZH → qq H. (The latter are very small and are typically neglected at the present level of precision. Furthermore, it includes the bb → H process which at present is not distinguishable from gg → H.  
Added:  
> > 
 
PDF version  
Changed:  
< <  
> >  
Changed:  
< < 
 
> > 
 
PDF version  
Changed:  
< <  
> >  
References
Run 2 results  
Changed:  
< < 
 
> > 
 
Run 1 results 
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Fiducial/Differential and Simplified Template Cross Sections  
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Stage 1 VBF bins  
Added:  
> > 
Stage 1.1This section describes an updated definition of the Stage 1 binning (Stage 1.1). This definition supersedes the one provided above, and should be used by new analyses performing STXS measurements. The changes with respect to Stage 1 are not backwardscompatible. The updates follows from discussions at the 2018 LHCHXSWG workshop and dedicated fid/dif/STXS subgroup meetings (here and here). An updated version of the Rivet tool that performs the STXS classification will be made available shortly.
 
References
Run 2 results  
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Added:  
> > 

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Fiducial/Differential and Simplified Template Cross Sections  
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Conveners
 
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> > 
 
Communication and meetings 
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Fiducial/Differential and Simplified Template Cross Sections  
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Communication and meetings  
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< < 
 
> > 
 
Meetings

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Fiducial/Differential and Simplified Template Cross Sections 
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Fiducial/Differential and Simplified Template Cross Sections  
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Run 2 results  
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> > 
 
Run 1 results

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Fiducial/Differential and Simplified Template Cross Sections  
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Changed:  
< < 
 
> >  Meetings
 
 
Changed:  
< <  
> >  Links to previous meetings on STXS:
 
Topics of the groupGoal of the group is to discuss and address the issues related to fiducial and differential cross sections as well as simplified template cross sections (STXS) within the WG2 structure.  
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In theories beyond the SM, the properties of the 125 GeV Higgs boson may not be determined only by a simple scaling of couplings. Instead, the kinematic distributions in the various Higgs production and decay channels may be sensitively modified by BSM (incl. EFT) effects. Fiducial cross sections (FXS), i.e. cross sections, whether total or differential, for specific states within the phase space defined by experimental selection and acceptance cuts, provide a largely modelindependent way to test for such deviations in kinematic distributions. In particular, differential FXS are a powerful for scrutinizing the SM Lagrangian structure of the Higgs boson interactions, including tests for new tensorial couplings, nonstandard production modes, determination of effective form factors, etc.
Simplified template cross sections (STXS)  
Changed:  
< <  The Higgs boson coupling measurements during the LHC Run1 had as their main results measured signal strength and multiplicative coupling modifiers. Simplified template cross sections (STXS) were developed to provide a natural way to evolve these coupling measurements in the future. Compared to the Run1 measurements, the simplified template cross section framework aims to separate more cleanly measurement and interpretation steps in order to reduce in a systematic fashion the theory dependences that must be directly folded into the measurements (including both dependence on the theoretical uncertainties as well as on the underlying physics model). In addition, they provide more finelygrained measurements (and hence more information for theoretical interpretations), while at the same time allowing and benefiting from the global combination of the measurements in all decay channels.  
> >  The Higgs boson coupling measurements during the LHC Run1 had as their main results measured signal strength and multiplicative coupling modifiers. Simplified template cross sections (STXS) were developed to provide a natural way to evolve these coupling measurements in the future. Compared to the Run1 measurements, the STXS framework aims to separate more cleanly measurement and interpretation steps in order to reduce in a systematic fashion the theory dependencies that are folded into the measurements (including both the dependence on theoretical uncertainties and on the underlying physics model). In addition, they provide more finelygrained measurements (and hence more information for theoretical interpretations) while at the same time allowing and benefiting from the global combination of the measurements in all decay channels.
Here is a pictorial overview of the framework. The development was initiated at Les Houches 2015.  
The primary goals of the STXS framework are to maximize the sensitivity of the measurements while at the same time to minimize their theory dependence. Consequently, some of their defining features are:
 
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Changed:  
< < 
 
> > 
 
 
Changed:  
< < 
 
> > 
 
 
Changed:  
< < 
 
> >  Stage 0Stage 1  
References
Run 2 results  
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Deleted:  
< <  Links
 
 NicolasBerger  20170505 \ No newline at end of file  
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> > 

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Changed:  
< <  Fiducial/differential and simplified template cross section measurements  
> >  Fiducial/Differential and Simplified Template Cross Sections  
Deleted:  
< < 
GeneralGoal of the group is to discuss and address the issues related to fiducial crosssections, differential crosssections, and simplified template crosssections (STXS) within the WG2 structure.  
Conveners
 
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Topics of the group  
Added:  
> >  Goal of the group is to discuss and address the issues related to fiducial and differential cross sections as well as simplified template cross sections (STXS) within the WG2 structure.  
Fiducial and differential cross sectionsIn theories beyond the SM, the properties of the 125 GeV Higgs boson may not be determined only by a simple scaling of couplings. Instead, the kinematic distributions in the various Higgs production and decay channels may be sensitively modified by BSM (incl. EFT) effects. Fiducial cross sections (FXS), i.e. cross sections, whether total or differential, for specific states within the phase space defined by experimental selection and acceptance cuts, provide a largely modelindependent way to test for such deviations in kinematic distributions. In particular, differential FXS are a powerful for scrutinizing the SM Lagrangian structure of the Higgs boson interactions, including tests for new tensorial couplings, nonstandard production modes, determination of effective form factors, etc.  
Added:  
> >  Simplified template cross sections (STXS)  
Changed:  
< <  Simplified template crosssections (STXS)  
> >  The Higgs boson coupling measurements during the LHC Run1 had as their main results measured signal strength and multiplicative coupling modifiers. Simplified template cross sections (STXS) were developed to provide a natural way to evolve these coupling measurements in the future. Compared to the Run1 measurements, the simplified template cross section framework aims to separate more cleanly measurement and interpretation steps in order to reduce in a systematic fashion the theory dependences that must be directly folded into the measurements (including both dependence on the theoretical uncertainties as well as on the underlying physics model). In addition, they provide more finelygrained measurements (and hence more information for theoretical interpretations), while at the same time allowing and benefiting from the global combination of the measurements in all decay channels.  
Added:  
> >  The primary goals of the STXS framework are to maximize the sensitivity of the measurements while at the same time to minimize their theory dependence. Consequently, some of their defining features are:
 
References
Run 2 results
Run 1 results  
Changed:  
< < 
 
> > 
 
decays__, CMS Collaboration, CMSPASHIG15010
 
Changed:  
< < 
 
> > 
 
Changed:  
< < 
 
> > 
 
Changed:  
< < 
 
> > 
 
Added:  
> > 
 
Theory: precision calculations, BSM effects, etc. 
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Added:  
> >  Fiducial/differential and simplified template cross section measurements
GeneralGoal of the group is to discuss and address the issues related to fiducial crosssections, differential crosssections, and simplified template crosssections (STXS) within the WG2 structure.
Conveners
Communication and meetings
Topics of the group
Fiducial and differential cross sectionsIn theories beyond the SM, the properties of the 125 GeV Higgs boson may not be determined only by a simple scaling of couplings. Instead, the kinematic distributions in the various Higgs production and decay channels may be sensitively modified by BSM (incl. EFT) effects. Fiducial cross sections (FXS), i.e. cross sections, whether total or differential, for specific states within the phase space defined by experimental selection and acceptance cuts, provide a largely modelindependent way to test for such deviations in kinematic distributions. In particular, differential FXS are a powerful for scrutinizing the SM Lagrangian structure of the Higgs boson interactions, including tests for new tensorial couplings, nonstandard production modes, determination of effective form factors, etc.
Simplified template crosssections (STXS)
References
Run 2 results
Run 1 results
Theory: precision calculations, BSM effects, etc.Selected references, certainly incomplete. Let us know to add your paper.
Links
 
 NicolasBerger  20170505 
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Added:  
> > 
