Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
| dc.creator | Kaneko, J. | |
| dc.creator | Collaboration, Belle | |
| dc.date | 2002-08-19 | |
| dc.date | 2002-12-26 | |
| dc.date.accessioned | 2026-07-07T12:01:50Z | |
| dc.date.available | 2026-07-07T12:01:50Z | |
| dc.description | We report the first measurement of the branching fraction for the inclusive decay B --> X(s) l+ l-, where l is either an electron or a muon and X(s) is a hadronic recoil system that contains an s-quark. We analyzed a data sample of 65.4 * 10**6 B meson pairs collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. We find Br(B --> X(s) l+ l-) = (6.1 +/-1.4(stat) +1.4-1.1(syst)) * 10**(-6) for dilepton masses greater than 0.2 GeV/c**2. | |
| dc.description | 10 pages, 2 figures, to be published in Phys.Rev.Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0208029 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0208029 | |
| dc.identifier | Phys.Rev.Lett.90:021801,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.90.021801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207230 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the Electroweak Penguin Process B --> X(s) l+ l- | |
| dc.type | text |