期刊
PHYSICAL REVIEW D
卷 88, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.032012
关键词
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资金
- SLAC
- U.S. Department of Energy and National Science Foundation
- Natural Sciences and Engineering Research Council (Canada)
- Commissariat a l'Energie Atomique
- Institut National de Physique Nucleaire et de Physique des Particules (France)
- Bundesministerium fur Bildung und Forschung (Germany)
- Deutsche Forschungsgemeinschaft (Germany)
- Istituto Nazionale di Fisica Nucleare (Italy)
- Foundation for Fundamental Research on Matter (Netherlands)
- Research Council of Norway
- Ministry of Education and Science of the Russian Federation
- Ministerio de Economia y Competitividad (Spain)
- Science and Technology Facilities Council (United Kingdom)
- Marie-Curie IEF program (European Union)
- A. P. Sloan Foundation (USA)
- STFC [ST/K001604/1, ST/H001085/1, PP/E000460/1, ST/H001085/2, ST/J005568/1, ST/K000748/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H001085/2, ST/K001604/1, ST/K001604/1 T2K, ST/K001604/1 DMUK, ST/J005568/1, ST/K001604/1 LHCb Upgrades, ST/H001085/1, ST/K001604/1 LHCb, ST/K001604/1 SuperNEMO, ST/K001604/1 CMS Upgrade, PP/E000460/1, ST/K000748/1, ST/K001604/1 MICE/UKNF, ST/K001604/1 GRIDPP] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [0969487] Funding Source: National Science Foundation
We present the results of a search for the rare flavor-changing neutral-current decays B -> pi l(+)l(-) (pi = pi(+), pi(0) and l = e, mu) and B-0 -> eta l(+)l(-) using a sample of e(+)e(-) -> Upsilon(4S) -> B (B) over bar decays corresponding to 428 fb(-1) of integrated luminosity collected by the BABAR detector. No significant signal is observed, and we set an upper limit on the isospin and lepton-flavor averaged branching fraction of B(B -> pi l(+)l(-)) < 5.9 x 10(-8) and a lepton-flavor averaged upper limit of B(B-0 -> eta l(+)l(-)) < 6.4 x 10(-8), both at the 90% confidence level. We also report 90% confidence level branching fraction upper limits for the individual modes B+ -> pi(+)e(+)e(-), B-0 -> pi(0)e(+)e(-), B-0 -> pi(+)mu(+)mu(-), B-0 -> pi(+)mu(+)mu(-), B-0 -> pi(0)mu(+)mu(-), B-0 -> eta e(+)e(-), and B-0 ->eta mu(+)mu(-).
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