A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton-proton collisions recorded by the ATLAS detector at √s = 13 TeV
This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e(+)mu(-) and e(-)mu(+) pairs to constrain physics processes beyond the Standard Model. It uses 139 fb(-1) of proton-proton collision data recorded at root s = 13 TeV at the LHC. Targeting s...
| Published in: | Physics Letters B Vol. 830. P. 137106 (1-22) |
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| Other Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Online Access: | http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001008303 Перейти в каталог НБ ТГУ |
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| 024 | 7 | |a 10.1016/j.physletb.2022.137106 |2 doi | |
| 035 | |a koha001008303 | ||
| 040 | |a RU-ToGU |b rus |c RU-ToGU | ||
| 245 | 1 | 2 | |a A search for an unexpected asymmetry in the production of e+μ− and e−μ+ pairs in proton-proton collisions recorded by the ATLAS detector at √s = 13 TeV |c G. Aad, B. Abbott, D. C. Abbott [et al.] |
| 336 | |a Текст | ||
| 337 | |a электронный | ||
| 504 | |a Библиогр.: 59 назв. | ||
| 520 | 3 | |a This search, a type not previously performed at ATLAS, uses a comparison of the production cross sections for e(+)mu(-) and e(-)mu(+) pairs to constrain physics processes beyond the Standard Model. It uses 139 fb(-1) of proton-proton collision data recorded at root s = 13 TeV at the LHC. Targeting sources of new physics which prefer final states containing e(+)mu(-) and e(-)mu(+), the search contains two broad signal regions which are used to provide model-independent constraints on the ratio of cross sections at the 2% level. The search also has two special selections targeting supersymmetric models and leptoquark signatures. Observations using one of these selections are able to exclude, at 95% confidence level, singly produced smuons with masses up to 640 GeV in a model in which the only other light sparticle is a neutralino when the R-parity-violating coupling lambda(23)(1)' is close to unity. Observations using the other selection exclude scalar leptoquarks with masses below 1880 GeV when g(1R)(eu) = g(1R)(mu c) = 1, at 95% confidence level. The limit on the coupling reduces to g(1R)(eu) = g(1R)(mu c) = 0.46 for a mass of 1420 GeV. (C) 2022 The Author(s). Published by Elsevier B.V. | |
| 653 | |a протон-протонные столкновения | ||
| 653 | |a ATLAS, детектор | ||
| 653 | |a скалярные лептокварки | ||
| 655 | 4 | |a статьи в журналах |9 896993 | |
| 700 | 1 | |a Aad, G. |9 116039 | |
| 700 | 1 | |a Abbott, B. |9 116041 | |
| 700 | 1 | |a Abbott, D. C. |9 500727 | |
| 700 | 1 | |a Aliev, M. |9 878765 | |
| 700 | 1 | |a Kostyukhin, Vadim V. |9 898806 | |
| 700 | 1 | |a Kuchinskaya, Olesya I. |9 100836 | |
| 700 | 1 | |a Penzin, Maxim S. |9 898592 | |
| 773 | 0 | |t Physics Letters B |d 2022 |g Vol. 830. P. 137106 (1-22) |x 0370-2693 | |
| 852 | 4 | |a RU-ToGU | |
| 856 | 4 | |u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001008303 | |
| 856 | |y Перейти в каталог НБ ТГУ |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=1008303 | ||
| 908 | |a статья | ||
| 039 | |z 57 |b 100 | ||
| 999 | |c 1008303 |d 1008303 | ||