Determination of spin and parity of the Higgs boson in the WW* -> ev mu v decay channel with the ATLAS detectorVisa övriga samt affilieringar
Antal upphovsmän: 28272015 (Engelska)Ingår i: European Physical Journal C, ISSN 1434-6044, E-ISSN 1434-6052, Vol. 75, nr 5, artikel-id 231Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
Studies of the spin and parity quantum numbers of the Higgs boson in the WW* -> ev mu v 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-of-mass energy of root s = 8 TeV. The Standard Model spin-parity J(CP) = 0(++) hypothesis is compared with alternative hypotheses for both spin andCP. The case where the observed resonance is a mixture of the Standard-Model-like Higgs boson and CP-even (J(CP) = 0(++)) or CP-odd (J(CP) = 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.
Ort, förlag, år, upplaga, sidor
2015. Vol. 75, nr 5, artikel-id 231
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Fysik
Identifikatorer
URN: urn:nbn:se:uu:diva-258302DOI: 10.1140/epjc/s10052-015-3436-3ISI: 000355680900007OAI: oai:DiVA.org:uu-258302DiVA, id: diva2:841421
Anmärkning
ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1140/epjc/s10052-015-3436-3
2015-07-132015-07-132017-12-04Bibliografiskt granskad