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20231220125103.0 |
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230426|2022 gw s a eng d |
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|a 10.1007/JHEP06(2022)082
|2 doi
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|a koha001001009
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|a RU-ToGU
|b rus
|c RU-ToGU
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|a Search for charged-lepton flavor violation in top quark production and decay in pp collisions at √s = 13 TeV
|c A. Tumasyan, W. Adam, J. W. Andrejkovic [et al.]
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|a Текст
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|a электронный
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|a Библиогр.: 69 назв.
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|a Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb(-1), collected by the CMS experiment at the LHC. This analysis includes both the production (q -> e mu t) and decay (t -> e mu q) modes of the top quark through CLFV interactions, with q referring to a u or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence levels on the respective branching fractions of a top quark to an e mu pair and an up (charm) quark of 0.13 x 10(-6) (1.31 x 10(-6)), 0.07 x 10(-6) (0.89 x 10(-6)), and 0.25 x 10(-6) (2.59 x 10(-6)) for vector, scalar, and tensor CLFV interactions, respectively.
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|a адрон-адронное рассеяние
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|a протон-протонные столкновения
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|a лептоны
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|a топ-кварки
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|a статьи в журналах
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|a Tumasyan, Armen
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|a Adam, Wolfgang
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|a Andrejkovic, Janik Walter
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|a Borshch, Vladislav
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|a Ivanchenko, Vladimir
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|a Tcherniaev, Evgueni
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|t Journal of high energy physics
|d 2022
|g Vol. 6. P. 82 (1-42)
|x 1126-6708
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|a RU-ToGU
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|u http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:001001009
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|a статья
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|c 1001009
|d 1001009
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