Measurement of the semileptonic branching ratio of B0_s to an orbitally excited D_s** state, Br(B0_s -> Ds1(2536) mu nu)
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- Function : Author
M.H.L.S Wang
- Function : Author
J. Warchol
- Function : Author
G. Watts
- Function : Author
M. Wayne
- Function : Author
M. Weber
- Function : Author
G. Weber
- Function : Author
L. Welty-Rieger
- Function : Author
A. Wenger
- Function : Author
N. Wermes
- Function : Author
M. Wetstein
- Function : Author
A. White
- Function : Author
D. Wicke
- Function : Author
G.W. Wilson
- Function : Author
S.J. Wimpenny
- Function : Author
M. Wobisch
- Function : Author
D.R. Wood
- Function : Author
T.R. Wyatt
- Function : Author
Y. Xie
- Function : Author
S. Yacoob
- Function : Author
R. Yamada
- Function : Author
M. Yan
- Function : Author
T. Yasuda
- Function : Author
Y.A. Yatsunenko
- Function : Author
K. Yip
- Function : Author
H.D. Yoo
- Function : Author
S.W. Youn
- Function : Author
J. Yu
- Function : Author
A. Zatserklyaniy
- Function : Author
C. Zeitnitz
- Function : Author
T. Zhao
- Function : Author
B. Zhou
- Function : Author
J. Zhu
- Function : Author
M. Zielinski
- Function : Author
D. Zieminska
- Function : Author
A. Zieminski
- Function : Author
L. Zivkovic
- Function : Author
V. Zutshi
- Function : Author
E.G. Zverev
- Function : Author
Abstract
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 via the decay mode B0_s -> D_s1(2536) mu nu X. A first measurement is made of the branching ratio product Br(b(bar) -> D_s1(2536) mu nu X).Br(D_s1(2536)->D* K0_S). Assuming that D_s1(2536) production in semileptonic decay is entirely from B0_s, an extraction of the semileptonic branching ratio Br(B0_s -> D_s1(2536) mu nu X) is made.