10.1103-PhysRevD.90.052004.pdf (822.33 kB)
Measurement of the Higgs boson mass from the H??? and H?ZZ*?4l channels in pp collisions at center-of-mass energies of 7 and 8 TeV with the ATLAS detector
journal contribution
posted on 2023-06-09, 06:09 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS CollaborationAn 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??? 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??? and H?ZZ*?4l decay channels.
Funding
ATLAS; G0275; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I006048/1
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review DISSN
2470-0010Publisher
American Physical SocietyExternal DOI
Issue
5Volume
90Page range
052004Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-05-05First Open Access (FOA) Date
2017-05-05First Compliant Deposit (FCD) Date
2017-05-05Usage metrics
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