Branching fractions and direct CP asymmetries of charmless decay modes at the Tevatron
Conference
·
· Nucl.Phys.Proc.Suppl.170:39-45,2007
OSTI ID:897894
The authors present new CDF results on the branching fractions and time-integrated direct CP asymmetries for B{sup 0} and B{sub s}{sup 0} decay modes into pairs of charmless charged hadrons (pion or kaon). The data set for this update amounts to 1 fb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV. They report the first observation of the B{sub s}{sup 0} {yields} K{sup -}{pi}{sup +} mode and a measurement of its branching fraction and direct CP asymmetry. They also observe for the first time two charmless decays of b-baryon: {Lambda}{sub b}{sup 0} {yields} p{pi}{sup -} and {Lambda}{sub b}{sup 0} {yields} pK{sup -}.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 897894
- Report Number(s):
- FERMILAB-CONF-06-471-E; arXiv eprint number hep-ex/0612018
- Conference Information:
- Journal Name: Nucl.Phys.Proc.Suppl.170:39-45,2007
- Country of Publication:
- United States
- Language:
- English
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