Measurement of CP asymmetries in two-body B0(s)-meson decays to charged pions and kaons

Measurement of CP asymmetries in two-body B0(s)-meson decays to charged pions and kaons

Detalles Bibliográficos
Parent link:Physical Review D: particles, fields, gravitation, and cosmology.— , 1970-
Vol. 98, iss. 3.— 2018.— [032004, 23 p.]
Autores Corporativos: 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
Otros Autores: Aaij R. Roel, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich, Vagner A. R. Aleksandr Rudolfovich
Sumario:Title screen
The time-dependent CP asymmetries in B0→π+π− and B0s→K+K− decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3.0  fb−1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B0→K+π− and B0s→π+K− decays. The results are Cπ+π−=−0.34±0.06±0.01, Sπ+π−=−0.63±0.05±0.01, CK+K−=0.20±0.06±0.02, SK+K−=0.18±0.06±0.02, AΔΓK+K−=−0.79±0.07±0.10, AB0CP=−0.084±0.004±0.003, and AB0sCP=0.213±0.015±0.007, where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the B0s→K+K− decay for the first time.
Publicado: 2018
Materias:
электронный ресурс
труды учёных ТПУ
Acceso en línea:http://earchive.tpu.ru/handle/11683/57795
https://doi.org/10.1103/PhysRevD.98.032004
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=658778

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