$Precise measurement of the fs/fd ratio of fragmentation fractions and of B0s decay branching fractions; Physical Review D; Vol. 104, iss. 3$

Precise measurement of the fs/fd ratio of fragmentation fractions and of B0s decay branching fractions; Physical Review D; Vol. 104, iss. 3

Մատենագիտական մանրամասներ
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 104, iss. 3.— 2021.— [032005, 20 p.]
Համատեղ հեղինակներ:	Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР), Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Այլ հեղինակներ:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Ամփոփում:	Title screen The ratio of the B0s and B0 fragmentation fractions, fs/fd, in proton-proton collisions at the LHC, is obtained as a function of B-meson transverse momentum and collision center-of-mass energy from the combined analysis of different B-decay channels measured by the LHCb experiment. The results are described by a linear function of the meson transverse momentum or with a function inspired by Tsallis statistics. Precise measurements of the branching fractions of the B0s→J/ψϕ and B0s→D−sπ+ decays are performed, reducing their uncertainty by about a factor of 2 with respect to previous world averages. Numerous B0s decay branching fractions, measured at the LHCb experiment, are also updated using the new values of fs/fd and branching fractions of normalization channels. These results reduce a major source of systematic uncertainty in several searches for new physics performed through measurements of B0s branching fractions.
Լեզու:	անգլերեն
Հրապարակվել է:	2021
Խորագրեր:	электронный ресурс труды учёных ТПУ
Առցանց հասանելիություն:	http://earchive.tpu.ru/handle/11683/72774 https://doi.org/10.1103/PhysRevD.104.032005
Ձևաչափ:	Էլեկտրոնային Գրքի գլուխ
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666715

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