Measurement of the Branching Fractions for psi(2S) --> e+e- and psi(2S)-->mu+mu-
- SLAC
The authors measure the branching fractions of the {psi}(2S) meson to the leptonic final states e{sup +}e{sup -} and {mu}{sup +}{mu}{sup -} relative to that for {psi}(2S) {yields} J/{psi} {pi}{sup +}{pi}{sup -}. 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) {yields} J/{psi} {pi}{sup +}{pi}{sup -} branching fraction, they determine the e{sup +}e{sup -} and {mu}{sup +}{mu}{sup -} branching fractions to be 0.0078 {+-} 0.0009 {+-} 0.0008 and 0.0067 {+-} 0.0008 {+-} 0.0007 respectively.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515;
- OSTI ID:
- 826705
- Report Number(s):
- SLAC-PUB-8953
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the B0 ---> Psi (2S) Lambda0 Branching Fraction on BaBar at the Stanford Linear Accelerator Center (Abstract Only)
A Measurement of PSI(2S) Resonance Parameters
A measurement of the B0 --> J/psi pi+pi- branching fraction
Technical Report
·
Tue Nov 15 19:00:00 EST 2005
·
OSTI ID:878022
A Measurement of PSI(2S) Resonance Parameters
Technical Report
·
Thu Nov 07 19:00:00 EST 2002
·
OSTI ID:808673
A measurement of the B0 --> J/psi pi+pi- branching fraction
Technical Report
·
Sun Sep 08 20:00:00 EDT 2002
·
OSTI ID:801776