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Abstract: A study is presented of anomalous HVV interactions of the Higgs boson, including its CP properties. The study uses Higgs boson candidates produced mainly in vector boson fusion and gluon fusion that subsequently decay to a pair of ? leptons. The data were recorded by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 35.9 fb-1 . A matrix element technique is employed for the analysis of anomalous interactions. The results are combined with those from the H?4? decay channel presented earlier, yielding the most stringent constraints on anomalous Higgs boson couplings to electroweak vector bosons expressed as effective cross section fractions and phases: the CP -violating parameter fa3cos(?a3)=(0.00±0.27)×10-3 and the CP -conserving parameters fa2cos(?a2)=(0.08+1.04-0.21)×10-3 , f?1cos(??1)=(0.00+0.53-0.09)×10-3 , and fZ??1cos(?Z??1)=(0.0+1.1-1.3)×10-3 . The current dataset does not allow for precise constraints on CP properties in the gluon fusion process. The results are consistent with standard model expectations.
Fuente: Phys. Rev. D 100, 112002 (2019)
Editorial: American Physical Society
Fecha de publicación: 01/12/2019
Nº de páginas: 33
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevD.100.112002
ISSN: 1550-7998,1550-2368,2470-0010,2470-0029
Url de la publicación: https://doi.org/10.1103/PhysRevD.100.112002
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SIRUNYAN, A. M.
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
BARBARA CHAZIN QUERO
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
PEDRO JOSE FERNANDEZ MANTECA
ANDREA GARCIA ALONSO
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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