Search for Rare b → dl+ l- Transitions at Belle

被引：0
|
作者：
Adachi, I.
Aggarwal, L.
Aihara, H.
Akopov, N.
Aloisio, A.
Al Said, S.
Asner, D. M.
Atmacan, H.
Aushev, V.
Aversano, M.
Ayad, R.
Babu, V.
Bae, H.
Bahinipati, S.
Bambade, P.
Banerjee, Sw.
Bansal, S.
Barrett, M.
Baudot, J.
Beaubien, A.
Becherer, F.
Becker, J.
Belous, K.
Bennett, J. V.
Bernlochner, F. U.
Bertacchi, V.
Bertemes, M.
Bertholet, E.
Bessner, M.
Bettarini, S.
Bianchi, F.
Bierwirth, L.
Bilka, T.
Biswas, D.
Bobrov, A.
Bodrov, D.
Bolz, A.
Borah, J.
Bozek, A.
Bracko, M.
Branchini, P.
Briere, R. A.
Browder, T. E.
Budano, A.
Bussino, S.
Campajola, M.
Cao, L.
Casarosa, G.
Cecchi, C.
Cerasoli, J.
机构：
来源：
PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 10期
基金：
澳大利亚研究理事会; 奥地利科学基金会; 瑞士国家科学基金会; 美国能源部; 国家重点研发计划; 新加坡国家研究基金会; 中国国家自然科学基金; 日本学术振兴会; 美国国家科学基金会; 欧盟地平线“2020”;
关键词：
CP-VIOLATION; DECAYS; IDENTIFICATION;
D O I：
10.1103/PhysRevLett.133.101804
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present the results of a search for the b -> dl(+)l(-) flavor-changing neutral-current rare decays B-+,B-0 -> (eta, omega, pi(+,0), rho(+,0))e(+)e(-) and B-+,B-0 -> (eta, omega, pi(0), rho(+))mu(+)mu(-) using a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar events. The data were collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We find no evidence for signal and set upper limits on branching fractions at the 90% confidence level in the range (3.8-47) x 10(-8) depending on the decay channel. The obtained limits are the world's best results. This is the first search for the channels B-+,B-0 -> (omega, rho(+,0))e(+)e(-) and B-+,B-0 -> (omega, rho(+))mu(+)mu(-).
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页数：8
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