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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2005-02-25
Autores
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Agelou, M.
Agram, J. L.
Ahn, S. H.
Ahsan, M.
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Resumo
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.
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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
Como citar
Physical Review Letters, v. 94, n. 7, 2005.