Journal article
Flavor tagged time dependent angular analysis of the Bs→J/ψφ decay and extraction of ΔΓ and the weak phase φs in ATLAS
Physical review. D, Particles, fields, gravitation, and cosmology, Vol.90(5), 052007
2014
DOI: 10.1103/PhysRevD.90.052007
Abstract
An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H→γγ and H→ZZ*→4ℓ. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 25 fb−1. The measured value of the Higgs boson mass is mH=125.36±0.37(stat)±0.18(syst) GeV. This result is based on improved energy-scale calibrations for photons, electrons, and muons as well as other analysis improvements, and supersedes the previous result from ATLAS. Upper limits on the total width of the Higgs boson are derived from fits to the invariant mass spectra of the H→γγ and H→ZZ*→4ℓ decay channels.
Details
- Title: Subtitle
- Flavor tagged time dependent angular analysis of the Bs→J/ψφ decay and extraction of ΔΓ and the weak phase φs in ATLAS
- Creators
- G Aad - Aix-Marseille UniversitéG.J BesjesS CaronV DaoN De GrootF FilthautC.F GaleaP KlokA.C KonigA SalvucciATLAS Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Particles, fields, gravitation, and cosmology, Vol.90(5), 052007
- DOI
- 10.1103/PhysRevD.90.052007
- ISSN
- 1550-7998
- eISSN
- 1550-2368
- Publisher
- American Physical Society
- Language
- English
- Date published
- 2014
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199776302771
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