Observation of B{sup 0} Meson Decay to {alpha}{sub 1}{sup +}(1260) {pi}{sup -}
The authors present a preliminary measurement of the branching fraction of the B meson decay B{sup 0} --> {alpha}{sup 1}{sup +}(1260) --> {pi}{sup +}{pi}{sup +}{pi}{sup -}. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. They find the branching fraction B(B{sup 0} --> {alpha}{sub 1}{sup +}(1260){pi}{sup -}) = (42.6 {+-} 4.2 {+-} 4.1) x 10{sup -6}. The fitted values of the {alpha}{sub 1}(1260) parameters are m{sub {alpha}{sub 1}} = 1.19 {+-} 0.02 GeV/c{sup 2} and {Gamma}{sub {alpha}{sub 1}} = 312 {+-} 55 MeV/c{sup 2}.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 829743
- Report Number(s):
- SLAC-PUB-10597; TRN: US0405843
- Resource Relation:
- Other Information: PBD: 9 Aug 2004
- Country of Publication:
- United States
- Language:
- English
Similar Records
Search for B{sup +} meson decay to a{sub 1}{sup +}(1260)K{sup *0}(892)
Search for B+ meson decay to a1+ K*0
Evidence for B+ to K0barK+ and B0 to K0K0bar, and Measurement of the Branching Fraction and Search for Direct CP Violation in B+ to K0pi+
Journal Article
·
Mon Nov 01 00:00:00 EDT 2010
· Physical Review. D, Particles Fields
·
OSTI ID:829743
+17 more
Search for B+ meson decay to a1+ K*0
Journal Article
·
Thu Aug 11 00:00:00 EDT 2011
· Phys.Rev.D82:091101,2010
·
OSTI ID:829743
+18 more
Evidence for B+ to K0barK+ and B0 to K0K0bar, and Measurement of the Branching Fraction and Search for Direct CP Violation in B+ to K0pi+
Journal Article
·
Tue Jul 12 00:00:00 EDT 2005
· Physical Review Letters
·
OSTI ID:829743
+17 more