10-1140-epjc-s10052-015-3436-3.pdf (2.98 MB)
Determination of spin and parity of the Higgs boson in the WW* ? e?µ? decay channel with the ATLAS detector
journal contribution
posted on 2023-06-08, 22:32 authored by Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, Alessandro CerriAlessandro Cerri, Lily AsquithLily Asquith, Iacopo Vivarelli, Benedict AllbrookeBenedict Allbrooke, Carlos Chavez Barajas, Itzebelt Santoyo Castillo, Tina Potter, Kerim Suruliz, Mark SuttonMark Sutton, and others (ATLAS collaboration)Studies of the spin and parity quantum numbers of the Higgs boson in the W W* ?e?µ? final state are presented, based on proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb-1 at a centre-ofmass energy of vs = 8 TeV. The Standard Model spinparity JC P = 0++ hypothesis is compared with alternative hypotheses for both spin and CP. The case where the observed resonance is a mixture of the Standard-Model-like Higgs boson and CP-even (JC P = 0++) or CP-odd (JC P = 0+-) Higgs boson in scenarios beyond the Standard Model is also studied. The data are found to be consistent with the Standard Model prediction and limits are placed on alternative spin and CP hypotheses, including CP mixing in different scenarios
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Publication status
- Published
File Version
- Published version
Journal
European Physical Journal C: Particles and FieldsISSN
1434-6044Publisher
EDP SciencesExternal DOI
Issue
231Volume
75Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2015-09-16First Open Access (FOA) Date
2015-09-16First Compliant Deposit (FCD) Date
2015-09-16Usage metrics
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