Search for the Rare Decays B0s→e+e− and B0→e+e−

Search for the Rare Decays B0s→e+e− and B0→e+e−

Bibliographic Details
Parent link:	Physical Review Letters Vol. 124, iss. 21.— 2020.— [211802, 11 p.]
Corporate Authors:	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
Other Authors:	Aaij R. Roel, Adeva B. Bernardo, Adinolfi M. Marco, Aidala C. Christine, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich, Strokov S. A. Sergey Aleksandrovich
Summary:	Title screen A search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2 fb−1, respectively. No signal is observed. Assuming no contribution from B0→e+e− decays, an upper limit on the branching fraction B(B0s→e+e−)<9.4(11.2)×10−9 is obtained at 90(95)% confidence level. If no B0s→e+e− contribution is assumed, a limit of B(B0→e+e−)<2.5(3.0)×10−9 is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values.
Published:	2020
Subjects:	электронный ресурс труды учёных ТПУ
Online Access:	http://earchive.tpu.ru/handle/11683/64814 https://doi.org/10.1103/PhysRevLett.124.211802
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662346

Internet

http://earchive.tpu.ru/handle/11683/64814
https://doi.org/10.1103/PhysRevLett.124.211802