Updated search for B+cBc+ decays to two charm mesons

Updated search for B+cBc+ decays to two charm mesons

Bibliographic Details
Parent link:Journal of High Energy Physics
Vol. 2021, iss. 12.— 2021.— [117, 22 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР)
Other Authors: Aaij R. Roel, Abdelmotteleb A. S., Beteta C. A. Carlos Abellan, Panshin G. L. Gennady Leonidovich, Kharisova A. E. Anastasiya Evgenjevna
Summary:Title screen
A data set corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment has been analysed to search for B+c→D(∗)+(s)(---)D(∗)0Bc+→D(s)(∗)+(---)D(∗)0 decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper limits for the branching fractions, normalised to B+ decays to final states with similar topologies, are obtained for sixteen B+cBc+ decay modes. For the decay B+c→D+sD¯¯¯¯0Bc+→Ds+D¯0, an excess with a significance of 3.4 standard deviations is found.
Language:English
Published: 2021
Subjects:
электронный ресурс
труды учёных ТПУ
B physics
Branching fraction
Hadron-Hadron scattering (experiments)
Flavor physics
Online Access:http://earchive.tpu.ru/handle/11683/72501
https://doi.org/10.1007/JHEP12(2021)117
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667240
Description
Summary:Title screen
A data set corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment has been analysed to search for B+c→D(∗)+(s)(---)D(∗)0Bc+→D(s)(∗)+(---)D(∗)0 decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper limits for the branching fractions, normalised to B+ decays to final states with similar topologies, are obtained for sixteen B+cBc+ decay modes. For the decay B+c→D+sD¯¯¯¯0Bc+→Ds+D¯0, an excess with a significance of 3.4 standard deviations is found.
DOI:10.1007/JHEP12(2021)117

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