We report results from a search for the lepton flavor violating decays Bs(0) -> e(+)mu(-) and B0 -> e(+)mu(-), and the flavor-changing neutral-current decays Bs(0) -> e(+)e(-) and B0 -> e(+)e(-). The analysis uses data corresponding to 2 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV collected with the upgraded Collider Detector (CDF II) at the Fermilab Tevatron. The observed number of B0 and Bs(0) candidates is consistent with background expectations. The resulting Bayesian upper limits on the branching ratios at 90% credibility level are B(Bs(0) -> e(+)mu(-) ) < 2.0 x 10(-7), B(B0 -> e(+)mu(-)) < 6.4 x 10(-8), B(Bs(0) -> e(+)e(-) ) < 2.8 x 10(-7), and B(B0 -> e(+)e(-)) < 8.3 x 10(-8). From the limits on B(B(s)(0) -> e(+)mu(-)), the following lower bounds on the Pati-Salam leptoquark masses are also derived: M-LQ(Bs(0) -> e(+)mu(-)) > 47.8 TeV/c(2), and M-LQ(B0 -> e(+)mu(-)) > 59.3 TeV/c(2), at 90% credibility level.

T., A., J., A., T., A., B. A., G., S., A., D., A., et al. (2009). Search for the Decays B(s)0 -> e(+)mu(-) and B(s)0 -> e(+)e(-) in CDF Run II. PHYSICAL REVIEW LETTERS, 102, 201801-1-201801-8 [10.1103/PhysRevLett.102.201801].

Search for the Decays B(s)0 -> e(+)mu(-) and B(s)0 -> e(+)e(-) in CDF Run II

CIOCCI, MARIA AGNESE;
2009-01-01

Abstract

We report results from a search for the lepton flavor violating decays Bs(0) -> e(+)mu(-) and B0 -> e(+)mu(-), and the flavor-changing neutral-current decays Bs(0) -> e(+)e(-) and B0 -> e(+)e(-). The analysis uses data corresponding to 2 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV collected with the upgraded Collider Detector (CDF II) at the Fermilab Tevatron. The observed number of B0 and Bs(0) candidates is consistent with background expectations. The resulting Bayesian upper limits on the branching ratios at 90% credibility level are B(Bs(0) -> e(+)mu(-) ) < 2.0 x 10(-7), B(B0 -> e(+)mu(-)) < 6.4 x 10(-8), B(Bs(0) -> e(+)e(-) ) < 2.8 x 10(-7), and B(B0 -> e(+)e(-)) < 8.3 x 10(-8). From the limits on B(B(s)(0) -> e(+)mu(-)), the following lower bounds on the Pati-Salam leptoquark masses are also derived: M-LQ(Bs(0) -> e(+)mu(-)) > 47.8 TeV/c(2), and M-LQ(B0 -> e(+)mu(-)) > 59.3 TeV/c(2), at 90% credibility level.
2009
T., A., J., A., T., A., B. A., G., S., A., D., A., et al. (2009). Search for the Decays B(s)0 -> e(+)mu(-) and B(s)0 -> e(+)e(-) in CDF Run II. PHYSICAL REVIEW LETTERS, 102, 201801-1-201801-8 [10.1103/PhysRevLett.102.201801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/38623
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