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001-es BibID:	BIBFORM119259
035-os BibID:	(Scopus)85135214262 (WoS)000834348200003
Első szerző:	Tumasyan, Armen
Cím:	Search for flavor-changing neutral current interactions of the top quark and Higgs boson in final states with two photons in proton-proton collisions at root{s} = 13 TeV / A. Tumasyan, CMS Collaboration
Dátum:	2022
ISSN:	0031-9007
Megjegyzések:	Proton-proton interactions resulting in final states with two photons are studied in a search for the signature of flavor-changing neutral current interactions of top quarks (t) and Higgs bosons (H). The analysis is based on data collected at a center-of-mass energy of 13 TeV with the CMS detector at the LHC, corresponding to an integrated luminosity of 137 fb-1. No significant excess above the background prediction is observed. Upper limits on the branching fractions (B) of the top quark decaying to a Higgs boson and an up (u) or charm (c) quark are derived through a binned fit to the diphoton invariant mass spectrum. The observed (expected) 95% confidence level upper limits are found to be 0.019% (0.031%) for B(t->Hu) and 0.073% (0.051%) for B(t->Hc). These are the strictest upper limits yet determined.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Bosons Photons Tellurium compounds A-center Final state Flavor changing neutral currents Higgs boson Neutral current interactions Proton interactions Proton proton collisions Top quarks Two photon Upper limits article boson flavor luminance mass spectrometry photon prediction quark Mass spectrometry
Megjelenés:	Physical Review Letters. - 129 : 3 (2022), p. 1-20. -
További szerzők:	Bartók Márton (fizikus) Karancsi János (1987-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus) CMS Collaboration
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