Title
Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairsStudy of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Elementary Particle Physics
Department of Physics
Publication type
article
Publication
New York, N.Y.,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
110(2013):8, p. 1-15
ISSN
0031-9007
0031-9007
Article Reference
081803
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17: 3 fb(-1), collected by the CMS experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, is used. The measured mass in the ZZ channel, where both Z bosons decay to e or mu pairs, is 126: 2 +/- 0.6(stat) +/- 0. 2(syst) GeV. The angular distributions of the lepton pairs in this channel are sensitive to the spin-parity of the boson. Under the assumption of spin 0, the present data are consistent with the pure scalar hypothesis, while disfavoring the pure pseudoscalar hypothesis. DOI: 10.1103/PhysRevLett.110.081803
Full text (open access)
https://repository.uantwerpen.be/docman/irua/e9d01c/3760.pdf
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