Observation of B{sub s}{sup 0}{yields}K{sup +}K{sup -} and Measurements of Branching Fractions of Charmless Two-Body Decays of B{sup 0} and B{sub s}{sup 0} Mesons in pp Collisions at {radical}(s)=1.96 TeV
- University of Illinois, Urbana, Illinois 61801 (United States)
- University of Florida, Gainesville, Florida 32611 (United States)
We search for decays of the type B{sub (s)}{sup 0}{yields}h{sup +}h{sup '-} (where h,h{sup '}=K or {pi}) in 180 pb{sup -1} of pp collisions collected at the Tevatron by the upgraded Collider Detector at Fermilab. We report the first observation of the new mode B{sub s}{sup 0}{yields}K{sup +}K{sup -} with a yield of 236{+-}32 events, corresponding to (f{sub s}/f{sub d})xB(B{sub s}{sup 0}{yields}K{sup +}K{sup -})/B(B{sup 0}{yields}K{sup +}{pi}{sup -})=0.46{+-}0.08(stat){+-}0.07(syst), where f{sub s}/f{sub d} is the ratio of production fractions of B{sub s}{sup 0} and B{sup 0}. We find results in agreement with world averages for the B{sup 0} modes, and set the following new limits at 90% C.L.: B(B{sub s}{sup 0}{yields}K{sup -}{pi}{sup +})<5.6x10{sup -6} and B(B{sub s}{sup 0}{yields}{pi}{sup +}{pi}{sup -})<1.7x10{sup -6}.
- OSTI ID:
- 20861397
- Journal Information:
- Physical Review Letters, Vol. 97, Issue 21; Other Information: DOI: 10.1103/PhysRevLett.97.211802; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Evidence for the B{sup 0}{yields}ppK*{sup 0} and B{sup +}{yields}{eta}{sub c}K*{sup +} decays and study of the decay dynamics of B meson decays into pph final states
Charmless B{yields}K{sub h{eta}}{sup (')} decays with K{sub h}=K, K{sup *}, K{sub 0}{sup *}(1430), K{sub 2}{sup *}(1430)