Search for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at vs=13 TeV; Journal of High Energy Physics; Vol. 2019, iss. 1
| Parent link: | Journal of High Energy Physics Vol. 2019, iss. 1.— 2019.— [122, 54 p.] |
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| Korporacja: | |
| Kolejni autorzy: | , , , , |
| Streszczenie: | Title screen A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and muons, and at least one jet. The data were collected during 2016 in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The results are found to be consistent with the expected standard model background. Upper limits are set in the mass range between 20 and 1600 GeV in the context of a Type-I seesaw mechanism, on |VeN|2, |VμN|2, and |VeNV*μN|2/(|VeN|2 + |VμN|2), where VℓN is the matrix element describing the mixing of N with the standard model neutrino of flavor ℓ = e, μ. For N masses between 20 and 1600 GeV, the upper limits on |VℓN|2 range between 2.3 × 10−5 and unity. These are the most restrictive direct limits for heavy Majorana neutrino masses above 430 GeV. Режим доступа: по договору с организацией-держателем ресурса |
| Język: | angielski |
| Wydane: |
2019
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| Hasła przedmiotowe: | |
| Dostęp online: | https://doi.org/10.1007/JHEP01(2019)122 |
| Format: | xMaterials Elektroniczne Rozdział |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662065 |
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| 200 | 1 | |a Search for heavy Majorana neutrinos in same-sign dilepton channels in proton-proton collisions at vs=13 TeV |f A. M. Sirunyan, A. R. Tumasyan, W. Adam [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 83 tit.] | ||
| 330 | |a A search is performed for a heavy Majorana neutrino (N), produced in leptonic decay of a W boson propagator and decaying into a W boson and a lepton, with the CMS detector at the LHC. The signature used in this search consists of two same-sign leptons, in any flavor combination of electrons and muons, and at least one jet. The data were collected during 2016 in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The results are found to be consistent with the expected standard model background. Upper limits are set in the mass range between 20 and 1600 GeV in the context of a Type-I seesaw mechanism, on |VeN|2, |VμN|2, and |VeNV*μN|2/(|VeN|2 + |VμN|2), where VℓN is the matrix element describing the mixing of N with the standard model neutrino of flavor ℓ = e, μ. For N masses between 20 and 1600 GeV, the upper limits on |VℓN|2 range between 2.3 × 10−5 and unity. These are the most restrictive direct limits for heavy Majorana neutrino masses above 430 GeV. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2019, iss. 1 |v [122, 54 p.] |d 2019 | ||
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| 701 | 1 | |a Adam |b W. |g Wolfgang | |
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