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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23578
Title: 
Study of the decay B-s(0)->(DsDs(*))-D-(*)
Author(s): 
Institution: 
  • Univ Buenos Aires
  • LAFEX
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ISSN: 
0031-9007
Abstract: 
We report a study of the decay B-s(0)->(DsDs(*))-D-(*) using a data sample corresponding to 1.3 fb(-1) of integrated luminosity collected by the D0 experiment in 2002-2006 during run II of the Fermilab Tevatron collider. One D-s((*)) meson was partially reconstructed in the decay D-s ->phi mu nu, and the other D-s((*)) meson was identified using the decay D-s ->phi pi where no attempt was made to distinguish D-s and D-s(*) states. For the branching fraction Br(B-s(0)->(DsDs(*))-D-(*)) we obtain a 90% C.L. range [0.002,0.080] and central value 0.039(-0.017)(+0.019)(stat)(-0.015)(+0.016)(syst). This was subsequently used to make the most precise estimate of the width difference Delta Gamma(CP)(s) in the B-s(0)-(B)over bar(s)(0) system: Delta Gamma(CP)(s)/Gamma(s)=0.079(-0.035)(+0.038)(stat)(-0.030)(+0.031)(syst).
Issue Date: 
14-Dec-2007
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 99, n. 24, 7 p., 2007.
Time Duration: 
7
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.99.241801
URI: 
http://hdl.handle.net/11449/23578
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/23578
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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