Improved Measurement of the Electroweak Penguin Process B->Xsll
| dc.creator | The Belle Collaboration | |
| dc.creator | Iwasaki, M. | |
| dc.date | 2005-03-24 | |
| dc.date.accessioned | 2026-07-07T11:58:03Z | |
| dc.date.available | 2026-07-07T11:58:03Z | |
| dc.description | We present an improved measurement of the branching fraction for the electroweak penguin process B->Xsll, where l is an electron or a muon and Xs is a hadronic system containing an s-quark. The measurement is based on a sample of 152*10^6 Upsilon(4S) -> BB events collected with the Belle detector at the KEKB energy asymmetric e+e- collider. The Xs hadronic system is reconstructed from one K^{+-} or K^{0}_{S} and up to four pions, where at most one pion can be neutral. Averaging over both lepton flavors, the inclusive branching fraction is measured to be Br(B->Xsll)=(4.11+-0.83(stat)+0.85-0.81(syst))*10^{-6} for M_ll > 0.2GeV/c2. | |
| dc.description | 16 pages 5 figures Latex, Submitted to Physical Review D | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0503044 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0503044 | |
| dc.identifier | Phys.Rev.D72:092005,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.72.092005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206099 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Improved Measurement of the Electroweak Penguin Process B->Xsll | |
| dc.type | text |