$Amplitude analysis of the B0(s)→K∗0K¯∗0B(s)0→K∗0K¯∗0 decays and measurement of the branching fraction of the B0→K∗0K¯∗0B0→K∗0K¯∗0 decay$

Amplitude analysis of the B0(s)→K∗0K¯∗0B(s)0→K∗0K¯∗0 decays and measurement of the branching fraction of the B0→K∗0K¯∗0B0→K∗0K¯∗0 decay

التفاصيل البيبلوغرافية
Parent link:	Journal of High Energy Physics Vol. 2019, iss. 7.— 2019.— [32, 30 p.]
مؤلفون مشاركون:	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)
مؤلفون آخرون:	Aaij R. Roel, Beteta C. A. Carlos Abellan, Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich
الملخص:	Title screen The B0→K∗0K¯∗0B0→K∗0K¯∗0 and B0s→K∗0K¯∗0Bs0→K∗0K¯∗0 decays are studied using proton-proton collision data corresponding to an integrated luminosity of 3 fb−1. An untagged and timeintegrated amplitude analysis of B0(s) → (K+π−)(K−π+) decays in two-body invariant mass regions of 150 MeV/c2 around the K∗0 mass is performed. A stronger longitudinal polarisation fraction in the B0→K∗0K¯∗0B0→K∗0K¯∗0 decay, fL = 0.724 ± 0.051 (stat) ± 0.016 (syst), is observed as compared to fL = 0.240 ± 0.031 (stat) ± 0.025 (syst) in the B0s→K∗0K¯∗0Bs0→K∗0K¯∗0 decay. The ratio of branching fractions of the two decays is measured and used to determine B(B0→K∗0K¯∗0)=(8.0±0.9(stat)±0.4(syst))×10−7B(B0→K∗0K¯∗0)=(8.0±0.9(stat)±0.4(syst))×10−7.
اللغة:	الإنجليزية
منشور في:	2019
الموضوعات:	электронный ресурс труды учёных ТПУ B physics Hadron-Hadron scattering (experiments)
الوصول للمادة أونلاين:	https://doi.org/10.1007/JHEP07(2019)032
التنسيق:	الكتروني فصل الكتاب
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663404

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