CMS public results for Higgs boson

Click For Summary
SUMMARY

The CMS results for new charged Higgs boson indicate a 95% confidence level (CL) model-independent upper limit on B(t->bH+) x B(H+ -> tau nu) ranging from 1.1% to 0.22% for m_H+ values between 80 GeV and 160 GeV. For m_H+ in the range of 180 GeV to 600 GeV, a model-independent limit on sigma(pp -> H+- tb) is established at 0.41-0.030 pb. The observed 95% CL upper limits are 1.2% to 0.16% for m_H+ = 80-160 GeV and 0.38-0.026 pb for m_H+ = 180-600 GeV. These results are interpreted within various MSSM benchmark scenarios, contributing to exclusion limits in the m_H+ - tan(beta) and m_A - tan(beta) parameter spaces.

PREREQUISITES
  • Understanding of the Minimal Supersymmetric Standard Model (MSSM)
  • Familiarity with particle physics terminology, specifically Higgs boson decay channels
  • Knowledge of confidence levels in statistical analysis
  • Basic comprehension of cross-section measurements in high-energy physics
NEXT STEPS
  • Research the implications of MSSM benchmark scenarios on Higgs boson physics
  • Study the statistical methods used in particle physics, focusing on confidence levels
  • Explore the significance of exclusion limits in the context of Higgs boson searches
  • Learn about the experimental techniques used in measuring sigma(pp -> H+- tb)
USEFUL FOR

Particle physicists, researchers in high-energy physics, and students studying the Higgs boson and its implications in the MSSM framework.

Safinaz
Messages
255
Reaction score
8
Hi all,

I read one of the CMS results for new charged Higgs on :
https://twiki.cern.ch/twiki/bin/view/CMSPublic/Hig14020TWiki

I can't understand this sentence at the main results:
An expected 95 % CL model-independent upper limit on B(t->bH+) x B(H+ -> tau nu) in the range of 1.1-0.22 % is obtained for m_H+ = 80-160 https://twiki.cern.ch/twiki/bin/view/CMSPublic/GeV while for m_H+ = 180-600 https://twiki.cern.ch/twiki/bin/view/CMSPublic/GeV a model-independent limit on sigma(pp -> H+- tb) is set to 0.41-0.030 pb. The corresponding observed 95 % CL model-independent upper limit is set to 1.2-0.16 % for m_H+ = 80-160 https://twiki.cern.ch/twiki/bin/view/CMSPublic/GeV and to 0.38-0.026 pb for m_H+ = 180-600 https://twiki.cern.ch/twiki/bin/view/CMSPublic/GeV . The results are interpreted in different MSSM benchmark scenarios and are used to set exclusion limits in the m_H+ - tan(beta) and m_A - tan(beta) parameter spaces.

What does it mean? is that constrains the theoretical calculations of sigma(pp -> H+- tb) to be 0.41-0.030 pb,
what about the last sentence which mentions "0.38-0.026 pb" ?

Bests,
S.
 
Last edited by a moderator:
Physics news on Phys.org
The ranges correspond to the mass ranges, different masses have different exclusion limits.
 
Thanx, I got it.
 

Similar threads

  • · Replies 13 ·
Replies
13
Views
5K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 31 ·
2
Replies
31
Views
9K
  • · Replies 10 ·
Replies
10
Views
4K