Aubert, B. et al. (2004) Measurement of the B→X_{s}ℓ^{+}ℓ^{-} Branching Fraction with a Sum over Exclusive Modes. Physical Review Letters, 93 (8). 081802. ISSN 0031-9007
Metadata only available from this repository.Abstract
We measure the branching fraction for the flavor-changing neutral-current process B→Xsℓ+ℓ- with a sample of 89×106 Υ(4S)→BB̅ events recorded with the BABAR detector at the PEP-II e+e- storage ring. The final state is reconstructed from e+e- or μ+μ- pairs and a hadronic system Xs consisting of one K± or KS0 and up to two pions, with at most one π0. We observe a signal of 40±10(stat)±2(syst) events and extract the inclusive branching fraction B(B→Xsℓ+ℓ-)=(5.6±1.5(stat)±0.6(exp syst)±1.1(model syst))×10-6 for mℓ+ℓ->0.2 GeV/c2.
Item Type: | Article |
---|---|
Subjects: | Q Science > QC Physics |
Schools: | School of Applied Sciences |
Depositing User: | Sharon Beastall |
Date Deposited: | 06 Apr 2011 11:58 |
Last Modified: | 28 Aug 2021 11:05 |
URI: | http://eprints.hud.ac.uk/id/eprint/10046 |
Downloads
Downloads per month over past year
Repository Staff Only: item control page
![]() |
View Item |