Measurement of the Semileptonic Branching Ratio of B{sub s}{sup 0} to an Orbitally Excited D{sub s}** State: Br(B{sub s}{sup 0}{yields}D{sub s1}{sup -}(2536){mu}{sup +}{nu}X)
- Joint Institute for Nuclear Research, Dubna (Russian Federation)
- University of Oklahoma, Norman, Oklahoma 73019 (United States)
- Michigan State University, East Lansing, Michigan 48824 (United States)
In a data sample of approximately 1.3 fb{sup -1} collected with the D0 detector between 2002 and 2006, the orbitally excited charm state D{sub s1}{sup {+-}}(2536) has been observed with a measured mass of 2535.7{+-}0.6(stat){+-}0.5(syst) MeV/c{sup 2} via the decay mode B{sub s}{sup 0}{yields}D{sub s1}{sup -}(2536){mu}{sup +}{nu}{sub {mu}}X. A first measurement is made of the branching ratio product Br(b{yields}D{sub s1}{sup -}(2536){mu}{sup +}{nu}{sub {mu}}X)xBr(D{sub s1}{sup -}{yields}D*{sup -}K{sub S}{sup 0}). Assuming that D{sub s1}{sup -}(2536) production in semileptonic decay is entirely from B{sub s}{sup 0}, an extraction of the semileptonic branching ratio Br(B{sub s}{sup 0}{yields}D{sub s1}{sup -}(2536){mu}{sup +}{nu}{sub {mu}}X) is made.
- OSTI ID:
- 21180175
- Journal Information:
- Physical Review Letters, Vol. 102, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.102.051801; (c) 2009 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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