Search for the Decays B((s))(0) -> e(+)mu(-) and B((s))(0) -> e(+)e(-) in CDF Run II RID G-1087-2011 RID E-4473-2011

We report results from a search for the lepton flavor violating decays B(s)(0) -> e(+)mu(-) and B(0) -> e(+)mu(-), and the flavor-changing neutral-current decays B(s)(0) -> e(+)e(-) and B(0) -> 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 B(0) and B(s)(0) candidates is consistent with background expectations. The resulting Bayesian upper limits on the branching ratios at 90% credibility level are B(B(s)(0) -> e(+)mu(-) ) < 2.0 x 10(-7), B(B(0) -> e(+)mu(-)) < 6.4 x 10(-8), B(B(s)(0) -> e(+)e(-) ) < 2.8 x 10(-7), and B(B(0) -> 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)(B(s)(0) -> e(+)mu(-)) > 47.8 TeV/c(2), and M(LQ)(B(0) -> e(+)mu(-)) > 59.3 TeV/c(2), at 90% credibility level.