4.4 Article

Fingerprinting Higgs suspects at the LHC

期刊

JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 5, 页码 -

出版社

SPRINGER
DOI: 10.1007/JHEP05(2012)097

关键词

Higgs Physics; Beyond Standard Model

资金

  1. European Commission under the contract ERC [226371 MassTeV]
  2. Spanish Consolider Ingenio 2010 Programme CPAN [CSD2007-00042]
  3. Spanish Ministry MICNN [FPA2010-17747, FPA2008-01430]
  4. DFG SFB/TR9 Computational Particle Physics
  5. [PITN-GA-2009-237920 UNILHC]
  6. [MRTN-CT-2006-035863 ForcesUniverse]
  7. ICREA Funding Source: Custom

向作者/读者索取更多资源

We outline a method for characterizing deviations from the properties of a Standard Model (SM) Higgs boson. We apply it to current data in order to characterize up to which degree the SM Higgs boson interpretation is consistent with experiment. We find that the SM Higgs boson is consistent with the current data set at the 82% confidence level, based on data of excess events reported by CMS and ATLAS, which are interpreted to be related to the mass scale m(h) similar to 124 - 126 GeV, and on published CLs exclusion regions. We perform a global fit in terms of two parameters characterizing the deviation from the SM value in the gauge and fermion couplings of a Higgs boson. We find two minima in the global fit and identify observables that can remove this degeneracy. An update for Moriond 2012 data is included in the appendix, which finds that the SM Higgs boson is now consistent with the current data set at only the 89% confidence level (which corresponds to similar to 2 sigma tension compared to the best fit point).

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