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http://acervodigital.unesp.br/handle/11449/68136- Title:
- Search for the flavor-changing neutral current decay Bs 0 → μ+ μ- pp̄ Collisions at √s = 1.96 TeV with the DO Detector
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- Universidad de Buenos Aires
- Centro Brasileiro de Pesquisas Físicas (CBPF)
- Universidade do Estado do Rio de Janeiro (UERJ)
- Universidade Estadual Paulista (UNESP)
- Simon Fraser University
- University of Alberta
- McGill University
- York University
- Institute of High Energy Physics
- Universidad de los Andes
- Center for Particle Physics
- Czech Technical University
- Academy of Sciences
- Universidad San Francisco de Quito
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- University of Wuppertal
- Panjab University
- Tata Institute of Fundamental Research
- University College Dublin
- Korea University
- CINVESTAV
- FOM-Institute NIKHEF and University of Amsterdam/NIKHEF
- University of Nijmegen/NIKHEF
- Joint Institute for Nuclear Research
- Institute for Theoretical and Experimental Physics (ITEP)
- Moscow State University
- Institute for High Energy Physics
- Petersburg Nuclear Physics Institute
- Lund University
- Royal Institute of Technology and Stockholm University
- Uppsala University
- Lancaster University
- Imperial College
- University of Manchester
- University of Arizona
- Lawrence Berkeley National Laboratory and University of California
- California State University
- University of California
- Florida State University
- Fermi National Accelerator Laboratory
- University of Illinois at Chicago
- Northern Illinois University
- Northwestern University (NU)
- Indiana University
- University of Notre Dame
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- University of Kansas (KU)
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- Northeastern University
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- Brookhaven National Laboratory
- Langston University
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- Brown University
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- Rice University
- University of Virginia (UVA)
- University of Washington
- University of Zurich
- Institute of Nuclear Physics
- 0031-9007
- 1079-7114
- We present the results of a search for the flavor-changing neutral current decay Bs 0 → μ+ μ-. using a data set with integrated luminosity of 240 pb-1 of pp̄ collisions at √s = 1.96 TeV collected with the D0 detector in run II of the Fermilab Tevatron collider. We find the upper limit on the branching fraction to be B(Bs 0 → μ+ π-) ≤ 5.0 × 10-7 at the 95% C.L. assuming no contributions from the decay Bd 0 → μ+ μ- in the signal region. This limit is the most stringent upper bound on the branching fraction Bs 0 → μ+ μ- to date. © 2005 The American Physical Society.
- 25-Feb-2005
- Physical Review Letters, v. 94, n. 7, 2005.
- Central fiber tracker (CFT)
- Dimuon triggers
- Final event selection
- Silicon microstrip tracker (SMT)
- Calorimeters
- Computer simulation
- Detectors
- Error detection
- Monte Carlo methods
- Silicon
- Trees (mathematics)
- Vectors
- Current density
- http://dx.doi.org/10.1103/PhysRevLett.94.071802
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/68136
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