Measurement of |Vcb| with B0s→D(*)−sμ+νμ decays; Physical Review D; Vol. 101, iss. 7

Measurement of |Vcb| with B0s→D(*)−sμ+νμ decays; Physical Review D; Vol. 101, iss. 7

Dades bibliogràfiques
Parent link:	Physical Review D: particles, fields, gravitation, and cosmology Vol. 101, iss. 7.— 2020.— [072004, 25 p.]
Autor corporatiu:	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
Altres autors:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Ackernley T., Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich
Sumari:	Title screen The element \|Vcb\| of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic B0s decays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. Rates of B0s→D−sμ+νμ and B0s→D*−sμ+νμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of \|Vcb\| are (41.4±0.6±0.9±1.2)×10−3 and (42.3±0.8±0.9±1.2)×10−3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of B+ and B0 mesons. They are the first determinations of \|Vcb\| at a hadron-collider experiment and the first using B0s meson decays.
Idioma:	anglès
Publicat:	2020
Matèries:	электронный ресурс труды учёных ТПУ
Accés en línia:	http://earchive.tpu.ru/handle/11683/64914 https://doi.org/10.1103/PhysRevD.101.072004
Format:	Electrònic Capítol de llibre
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662342

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