Artículos de revistas
Observation and properties of the orbitally excited Bs2* meson
Fecha
2008-02-28Registro en:
Physical Review Letters, v. 100, n. 8, 2008.
1079-7114
0031-9007
10.1103/PhysRevLett.100.082002
2-s2.0-40849126908
Autor
Universidad de Buenos Aires
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro (UERJ)
Universidade Federal do ABC (UFABC)
Universidade Estadual Paulista (UNESP)
University of Alberta
University of Science and Technology of China
Universidad de Los Andes
Charles University
Czech Technical University
Academy of Sciences of the Czech Republic
Universidad San Francisco de Quito
Université Blaise Pascal
Universite de Grenoble 1
Université de la Méditerranée
Université Paris-Sud
Universités Paris VI and VII
CEA
IN2P3
CNRS/IN2P3
RWTH Aachen
Universität Bonn
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Ludwig-Maximilians-Universität München
University of Wuppertal
Panjab University
Delhi University
Tata Institute of Fundamental Research
University College Dublin
Korea University
SungKyunKwan University
CINVESTAV
University of Amsterdam/NIKHEF
Radboud University Nijmegen/NIKHEF
Joint Institute for Nuclear Research
Institute for Theoretical and Experimental Physics
Moscow State University
Institute for High Energy Physics
Petersburg Nuclear Physics Institute
Lund University
Universität Zürich
Lancaster University
Imperial College
University of Manchester
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Fermi National Accelerator Laboratory
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Brookhaven National Laboratory
Langston University
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Institución
Resumen
We report the direct observation of the excited L=1 state Bs2* in fully reconstructed decays to B+K-. The mass of the Bs2* meson is measured to be 5839.6±1.1(stat)±0.7(syst)MeV/c2, and its production rate relative to the B+ meson is measured to be [1.15±0.23(stat)±0. 13(syst)]%. © 2008 The American Physical Society.