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001-es BibID:	BIBFORM120088
035-os BibID:	(Scopus)85130260327 (WoS)000783530300001
Első szerző:	CMS Collaboration
Cím:	Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at root{s} = 13 TeV / The CMS collaboration
Dátum:	2022
ISSN:	1126-6708 1029-8479
Megjegyzések:	A search is presented for a right-handed W boson (W_R) and a heavy neutrino (N), in a final state consisting of two same-flavor leptons (ee or [mu][mu]) and two quarks. The search is performed with the CMS experiment at the CERN LHC using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138 fb^-1. The search covers two regions of phase space, one where the decay products of the heavy neutrino are merged into a single large-area jet, and one where the decay products are well separated. The expected signal is characterized by an excess in the invariant mass distribution of the final-state objects. No significant excess over the standard model background expectations is observed. The observations are interpreted as upper limits on the product of WR production cross sections and branching fractions assuming that couplings are identical to those of the standard model W boson. For N masses m_N equal to half the W_R mass m_W_R (m_N = 0.2 TeV), mWR is excluded at 95% confidence level up to 4.7 (4.8) and 5.0 (5.4) TeV for the electron and muon channels, respectively. This analysis provides the most stringent limits on the W_R mass to date.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Exotics Hadron-Hadron Scattering
Megjelenés:	Journal of High Energy Physics. - 2022 : 4 (2022), p. 1-42. -
További szerzők:	Bartók Márton (fizikus) Karancsi János (1987-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus)
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