Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → KS0h+h−

Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → KS0h+h−

Detalles Bibliográficos
Parent link:	Journal of High Energy Physics Vol. 2021, iss. 2.— 2021.— [169, 35 p.]
Autores Corporativos:	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)
Otros Autores:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Ackernley T., Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Sumario:	Title screen A measurement of CP-violating observables is performed using the decays B± → DK± and B± → Dπ±, where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π+π− and KS0K+K− (commonly denoted K0SKS0h+h−). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb−1 collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7+5.2−5.1)∘(68.7−5.1+5.2)∘. The hadronic parameters rDKB,rDπB,δDKB,andδDπBrBDK,rBDπ,δBDK,andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B± decays, are also reported.
Lenguaje:	inglés
Publicado:	2021
Materias:	электронный ресурс труды учёных ТПУ B physics CKM angle gamma Hadron-Hadron scattering (experiments) CP violation Flavor physics
Acceso en línea:	https://doi.org/10.1007/JHEP02(2021)169
Formato:	Electrónico Capítulo de libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664703

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