Details

Autor(en) / Beteiligte

• Abazov, V. M.
• Åsman, Barbro
• Bélanger-Champagne, Camille
• Gollub, Nils
• Hansson, Per
• Strandberg, Jonas
• Strandberg, Sara
• Zverev, E. G.
• et al

Titel

Measurement of the Semileptonic Branching Ratio of Bs(0) to an Orbitally Excited D-s State: Br(Bs(0) -> Ds1(-)(2536)mu(+)nu X)

Ist Teil von

• Physical review letters, 2009, Vol.102 (5), p.051801

Erscheinungsjahr

2009

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• In a data sample of approximately 1.3 fb(-1) collected with the D0 detector between 2002 and 2006, the orbitally excited charm state D-s1(+/-)(2536) has been observed with a measured mass of 2535.7 +/- 0.6(stat) +/- 0.5(syst) MeV/c(2) via the decay mode B-s(0) -> D-s1(-)(2536)mu(+)nu X-mu. A first measurement is made of the branching ratio product Br((b) over bar -> D-s1(-)(2536)mu(+)nu X-mu) x Br(D-s1(-) -> D*K--(S)0). Assuming that D-s1(-)(2536) production in semileptonic decay is entirely from B-s(0), an extraction of the semileptonic branching ratio Br(B-s(0) -> D-s1(-)(2536)mu(+)nu X-mu) is made.