Measurement of the Ratios of Branching Fractions B(B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +})/B(B{sup 0}{yields}D{sup -}{pi}{sup +}) and B(B{sup +}{yields}D{sup 0}{pi}{sup +})/B(B{sup 0}{yields}D{sup -}{pi}{sup +})
- University of Illinois, Urbana, Illinois 61801 (United States)
- University of Florida, Gainesville, Florida 32611 (United States)
We report an observation of the decay B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +} in pp collisions at {radical}(s)=1.96 TeV using 115 pb{sup -1} of data collected by the CDF II detector at the Fermilab Tevatron. We observe 83{+-}11(stat) B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +} candidates, representing a large increase in statistics over previous measurements and the first observation of this decay at a pp collider. We present the first measurement of the relative branching fraction B(B{sub s}{sup 0}{yields}D{sub s}{sup -}{pi}{sup +})/B(B{sup 0}{yields}D{sup -}{pi}{sup +})=1.32{+-}0.18(stat){+-}0.38(syst). We also measure B(B{sup +}{yields}D{sup 0}{pi}{sup +})/B(B{sup 0}{yields}D{sup -}{pi}{sup +})=1.97{+-}0.10(stat){+-}0.21(syst), which is consistent with previous measurements.
- OSTI ID:
- 20775244
- Journal Information:
- Physical Review Letters, Vol. 96, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.96.191801; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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