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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24398
Title: 
Evidence for the Decay B-s(0)->(DsDs(*))-D-(*) and a Measurement of Delta Gamma(CP)(s)/Gamma(s)
Author(s): 
Institution: 
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Estado Rio de Janeiro
  • Universidade Federal do ABC (UFABC)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Univ Sci & Technol China
  • Universidad de los Andes
  • Charles Univ Prague
  • Czech Tech Univ
  • Acad Sci Czech Republic
  • Univ San Francisco
  • Univ Clermont Ferrand
  • Univ Grenoble 1
  • Aix Marseille Univ
  • Univ Paris 11
  • Univ Paris 06
  • Universidade de São Paulo (USP)
  • Univ Strasbourg 1
  • Univ Lyon 1
  • Univ Aachen
  • Univ Bonn
  • Univ Freiburg
  • Johannes Gutenberg Univ Mainz
  • Univ Munich
  • Univ Wuppertal
  • Panjab Univ
  • University of Delhi
  • Tata Inst Fundamental Res
  • Univ Coll Dublin
  • Korea University
  • Sungkyunkwan Univ
  • CINVESTAV
  • NIKHEF
  • Radboud Univ Nijmegen
  • Joint Inst Nucl Res
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • Inst High Energy Phys
  • Petersburg Nucl Phys Inst
  • Lund Univ
  • University of Arizona
  • Lawrence Berkeley Natl Lab
  • Calif State Univ Fresno
  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
  • Univ Illinois
  • No Illinois Univ
  • Northwestern University (NU)
  • Indiana University
  • Univ Notre Dame
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  • Iowa State Univ
  • University of Kansas (KU)
  • Kansas State University
  • Louisiana Tech University
  • University of Maryland
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  • University of Oklahoma
  • Oklahoma State Univ
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  • University of Lancaster
  • Univ London Imperial Coll Sci Technol & Med
  • University of Manchester
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ISSN: 
0031-9007
Sponsorship: 
  • DOE
  • NSF ( USA);
  • CEA
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • Fundação para o Desenvolvimento da UNESP (FUNDUNESP)
  • Department of Science and Technology (DST) - India
  • Colciencias ( Colombia)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • Korea Science and Engineering Foundation (KOSEF)
  • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
  • Foundation for Fundamental Research on Matter (FOM)
  • TFC ( United Kingdom)
  • Czech Science Foundation (GACR)
  • CRC Program
  • CFI
  • Natural Sciences and Engineering Research Council of Canada (NSERC)
  • WestGrid Project ( Canada)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Science Foundation Ireland (SFI)
  • Swedish Research Council
  • CAS and CNSF ( China)
  • Alexander von Humboldt Foundation
Abstract: 
We search for the semi-inclusive process B-s(0)->(DsDs(*))-D-(*) using 2.8 fb(-1) of pp collisions at s=1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We observe 26.6 +/- 8.4 signal events with a significance above background of 3.2 standard deviations yielding a branching ratio of B(B-s(0)->(DsDs(*))-D-(*))=0.035 +/- 0.010(stat.)+/- 0.011(syst.). Under certain theoretical assumptions, these double-charm final states saturate CP-even eigenstates in the B-s(0) decays resulting in a width difference of Delta Gamma(CP)(s)/Gamma(s)=0.072 +/- 0.021(stat.)+/- 0.022(syst.).
Issue Date: 
6-Mar-2009
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 102, n. 9, p. 7, 2009.
Time Duration: 
7
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.102.091801
URI: 
http://hdl.handle.net/11449/24398
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24398
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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