Please use this identifier to cite or link to this item:
http://bura.brunel.ac.uk/handle/2438/19593
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Collaboration, TBABAR | - |
dc.contributor.author | Aubert, B | - |
dc.contributor.author | Kyberd, P | - |
dc.date.accessioned | 2019-11-14T13:46:37Z | - |
dc.date.available | 2003-08-07 | - |
dc.date.available | 2019-11-14T13:46:37Z | - |
dc.date.issued | 2003-08-07 | - |
dc.identifier.citation | ArXiv, 2003, pp. 1 - 18 | en_US |
dc.identifier.issn | 2331-8422 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/19593 | - |
dc.description.abstract | We present a measurement of the branching fraction for the flavor-changing neutral current process B --> Xs l+ l- based on a sample of 88.9 \times 10^6 Upsilon(4S) --> BBbar events recorded with the BaBar detector at the PEP-II e+e- storage ring. The final state is reconstructed from pairs of electrons or muons and a hadronic system consisting of one K+/- or K0s and up to two pions, with at most one pi0. Summing over both lepton flavors, we observe a signal of 41 +/- 10(stat) +/- 2(syst) events with a statistical significance of 4.6 sigmas. The inclusive branching fraction is determined to be BF(B --> Xs l+ l-) = [6.3 +/- 1.6(stat) +1.8 -1.5(syst)] 10^{-6} for m(l+ l-) > 0.2 GeV/c^2. All results are preliminary. | en_US |
dc.format.extent | 1 - 18 | - |
dc.language.iso | en | en_US |
dc.publisher | ArXiv | en_US |
dc.title | Measurement of the B --> Xs l+ l- Branching Fraction Using a Sum over Exclusive Modes | en_US |
dc.type | Preprint | en_US |
dc.relation.isPartOf | ArXiv | - |
pubs.publication-status | Published online | - |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FullText.pdf | 222.54 kB | Adobe PDF | View/Open |
Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.