Interpreting CMS and ATLAS results

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Discussion Overview

The discussion revolves around interpreting the results of the cross-section and branching ratio for the process ## \sigma(pp \to H) \times BR (H \to WW) ## as presented in specific figures from referenced papers. Participants are examining how these results lead to exclusion limits and the implications of certain notations used in the figures.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions how the conclusion ## \sigma ( pp \to H \to WW^* )\leq 54, 37 fb ## is derived from the figures in the referenced paper.
  • Another participant suggests that the exclusion limit is directly given by ATLAS and can be read off at 750 GeV using the standard CLs technique.
  • There is a query regarding the notation "WW*" and why it is used when the figures show leptonic decays for WW.
  • A later reply clarifies that the asterisk indicates that one W boson is far off-shell.
  • Participants express uncertainty about how to interpret the experimental graphs and what information can be gleaned from them.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the interpretation of the figures or the conclusions drawn from them. Multiple viewpoints regarding the exclusion limits and the notation used remain evident.

Contextual Notes

There are limitations in understanding the derivation of the exclusion limits from the figures, as well as potential dependencies on the definitions and interpretations of the terms used.

Safinaz
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Hi all,

Any help about interprting the results of ## \sigma(pp \to H) \times BR (H \to WW) ## mentioned in Fig.(12-13) in [arXiv:1509.00389[hep-ex]]?

In that paper [arXiv:1512.06728v3[hep-ph]], page 8, its said that according to these figuers ## \sigma ( pp \to H \to WW^* )\leq 54, 37 fb ##, but I don't undersatnd how can we conclude that ?
also why in this paper they say WW* although the results in the Figs for WW both decay lepotonically ..Cheers,
S.
 
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Safinaz said:
In that paper [arXiv:1512.06728v3[hep-ph]], page 8, its said that according to these figuers ## \sigma ( pp \to H \to WW^* )\leq 54, 37 fb ##, but I don't undersatnd how can we conclude that ?
That should be directly the exclusion limit given by ATLAS, read off at 750 GeV. How ATLAS concluded that: standard CLs technique.

also why in this paper they say WW* although the results in the Figs for WW both decay lepotonically ..
The (optional) * is just a reminder that one W is far off-shell.
 
mfb said:
That should be directly the exclusion limit given by ATLAS, read off at 750 GeV. How ATLAS concluded that: standard CLs technique.

Can't we understand form the figures any informatin ?
 
I don't understand that question.
 
I mean as in [arXiv:1512.06728v3[hep-ph]], they say that : they concluded from these fig (12-13) that
## \sigma ( pp \to H \to WW^* )\leq 54, 37 fb ## .. I were asking from the beginning how they reached to this conculution , i.e., how can we interpret the Exp. graphes ?
 
The referenced graphs directly show the exclusion limits: the y-axis is the cross-section, the solid line is the exclusion limit as function of the mass (x axis). To find the exclusion limit at 750 GeV, look at the y-value of the solid line for x=750 GeV.
 

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