Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at √s = 13 TeV

Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at √s = 13 TeV

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 en...

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Bibliographic Details
Published in:Journal of high energy physics Vol. 4. P. 47 (1-42)
Other Authors: Tumasyan, Armen, Adam, Wolfgang, Andrejkovic, Janik Walter, Borshch, Vladislav, Ivanchenko, Vladimir, Tcherniaev, Evgueni
Format: Article
Language:English
Subjects:
протон-протонные столкновения
W-бозоны
тяжелые нейтрино
лептоны
статьи в журналах
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001002110
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520 3 |a 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 13TeV 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 W-R 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(WR) (m(N) = 0.2TeV), mW(R) 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 WR mass to date. 
653 |a протон-протонные столкновения 
653 |a W-бозоны 
653 |a тяжелые нейтрино 
653 |a лептоны 
655 4 |a статьи в журналах 
700 1 |a Tumasyan, Armen 
700 1 |a Adam, Wolfgang 
700 1 |a Andrejkovic, Janik Walter 
700 1 |a Borshch, Vladislav 
700 1 |a Ivanchenko, Vladimir 
700 1 |a Tcherniaev, Evgueni 
773 0 |t Journal of high energy physics  |d 2022  |g Vol. 4. P. 47 (1-42)  |x 1126-6708 
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