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(2007) Search for the rare decay B→πl+l-. Physical Review Letters, Vol.99 (No.5). Article: 051801. doi:10.1103/PhysRevLett.99.051801 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.99.051801
Abstract
We have performed a search for the flavor-changing neutral-current decays B-->pi l(+)l(-), where l(+)l(-) is either e(+)e(-) or mu(+)mu(-), using a sample of 230x10(6) Upsilon(4S)-->B(B)over-bar decays collected with the BABAR detector. We observe no evidence of a signal and measure the upper limit on the isospin-averaged branching fraction to be B(B-->pi l(+)l(-)) < 9.1 x 10(-8) at 90% confidence level. We also search for the lepton-flavor-violating decays B-->pi e(+/-)mu(-/+) and measure an upper limit on the isospin-averaged branching fraction of B(B-->pi e(+/-)mu(-/+)) < 9.2 x 10(-8) at 90% confidence level.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review Letters | ||||
Publisher: | American Physical Society | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 3 August 2007 | ||||
Dates: |
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Volume: | Vol.99 | ||||
Number: | No.5 | ||||
Number of Pages: | 7 | ||||
Page Range: | Article: 051801 | ||||
DOI: | 10.1103/PhysRevLett.99.051801 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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