Measurement of the branching fractions for psi(2S)-->e+e- and psi(2S)-->mu+mu-
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, the BABAR | |
| dc.date | 2001-09-07 | |
| dc.date | 2003-01-09 | |
| dc.date.accessioned | 2026-07-07T12:01:38Z | |
| dc.date.available | 2026-07-07T12:01:38Z | |
| dc.description | We measure the branching fractions of the psi(2S) meson to the leptonic final states e+e- and mu+mu- relative to that for psi(2S)-->J/psi pi+pi-. The method uses psi(2S) mesons produced in the decay of B mesons at the Upsilon(4S) resonance in a data sample collected with the BABAR detector at the Stanford Linear Accelerator Center. Using previous measurements for the psi(2S)-->J/psi pi+pi- branching fraction, we determine the e+e- and mu+mu- branching fractions to be 0.0078+/-0.0009+/-0.0008 and 0.0067+/-0.0008+/-0.0007 respectively. | |
| dc.description | 7 pages, 2 figures, published as Physical Review D 65 031101(R) rapid communications | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0109004 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0109004 | |
| dc.identifier | Phys.Rev.D65:031101,2002 | |
| dc.identifier | doi:10.1103/PhysRevD.65.031101 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207159 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the branching fractions for psi(2S)-->e+e- and psi(2S)-->mu+mu- | |
| dc.type | text |