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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/23101
Title: 
Properties of l=1 B-1 and B*(2) Mesons
Author(s): 
Institution: 
  • Joint Inst Nucl Res
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Simon Fraser Univ
  • York Univ
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  • Univ Sci & Technol China
  • Universidad de los Andes
  • Charles Univ Prague
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  • Univ Munich
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  • University of Delhi
  • Tata Inst Fundamental Res
  • Univ Coll Dublin
  • Korea University
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  • CINVESTAV
  • FOM Inst NIKHEF
  • Univ Amsterdam
  • Radboud Univ Nijmegen
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • Inst High Energy Phys
  • Petersburg Nucl Phys Inst
  • Lund Univ
  • Royal Inst Technol
  • Stockholm Univ
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  • Univ Zurich
  • University of Lancaster
  • Univ London Imperial Coll Sci Technol & Med
  • University of Manchester
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  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
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ISSN: 
0031-9007
Abstract: 
This Letter presents the first strong evidence for the resolution of the excited B mesons B-1 and B-2(*) as two separate states in fully reconstructed decays to B+(*())pi(-). The mass of B-1 is measured to be 5720.6 +/- 2.4 +/- 1.4 MeV/c(2) and the mass difference Delta M between B-2* and B-1 is 26.2 +/- 3.1 +/- 0: 9 MeV/c(2), giving the mass of the B-2* as 5746.8 +/- 2.4 +/- 1.7 MeV/c(2). The production rate for B-1 and B-2* mesons is determined to be a fraction (13.9 +/- 1.9 +/- 3.2)% of the production rate of the B+ meson.
Issue Date: 
26-Oct-2007
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 99, n. 17, 7 p., 2007.
Time Duration: 
7
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.99.172001
URI: 
http://hdl.handle.net/11449/23101
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/23101
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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