$Measurement of the branching fraction of the B0→D+sπ− decay; The European Physical Journal C; Vol. 81, iss. 4$

Measurement of the branching fraction of the B0→D+sπ− decay; The European Physical Journal C; Vol. 81, iss. 4

Chi tiết về thư mục
Parent link:	The European Physical Journal C Vol. 81, iss. 4.— 2021.— [314, 15 p.]
Nhiều tác giả của công ty:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники
Tác giả khác:	Aaij R. Roel, Beteta C. B. Carlos Abellan, Ackernley T., Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Tóm tắt:	Title screen A branching fraction measurement of the B0→D+sπ− decay is presented using proton-proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of 5.0fb−15.0fb−1. The branching fraction is found to be B(B0→D+sπ−)=(19.4±B(B0→Ds+π−)=(19.4± 1.8±1.3±1.2)×10−61.8±1.3±1.2)×10−6, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the B0→D−π+, D+s→K+K−π+Ds+→K+K−π+ and D−→K+π−π−D−→K+π−π− branching fractions. This is the most precise single measurement of this quantity to date. As this decay proceeds through a single amplitude involving a b→ub→u charged-current transition, the result provides information on non-factorisable strong interaction effects and the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element VubVub. Additionally, the collision energy dependence of the hadronisation-fraction ratio fs/fdfs/fd is measured through B¯s0→Ds+π− and B0→D−π+ decays.
Ngôn ngữ:	Tiếng Anh
Được phát hành:	2021
Những chủ đề:	электронный ресурс труды учёных ТПУ
Truy cập trực tuyến:	https://doi.org/10.1140/epjc/s10052-020-08790-2
Định dạng:	Điện tử Chương của sách
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664722

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