We have searched for the decays B-s(0) --> e(+/-)mu(-/+) and B-d(0) --> e(+/-)mu(-/+) using a 102 pb(-1) data sample of p (p) over bar collisions at root s = 1.8 TeV collected with the Collider Detector at Fermilab. We set upper limits on the branching fractions of B(B-s(0) --> e(+/-)mu(-/+)) < 6.1(8.2) x 10(-6) and B(B-d(0) --> e(+/-)mu(-/+)) < 3.5(4.5) x 10(-6) at 90(95)% confidence level. Using these limits, we set lower bounds on the corresponding Pati-Salam leptoquark masses and find that M-LQ(B-s(0)) > 20.7(19.3) TeV/c(2) and M-LQ(B-d(0)) > 21.7(20.4) TeV/c(2) at 90(95)% confidence level.

Search for the decays B-s(0),B-d(0)-> e(+/-)mu(-/+) and Pati-Salam leptoquarks

INTROZZI, GIANLUCA;
1998-01-01

Abstract

We have searched for the decays B-s(0) --> e(+/-)mu(-/+) and B-d(0) --> e(+/-)mu(-/+) using a 102 pb(-1) data sample of p (p) over bar collisions at root s = 1.8 TeV collected with the Collider Detector at Fermilab. We set upper limits on the branching fractions of B(B-s(0) --> e(+/-)mu(-/+)) < 6.1(8.2) x 10(-6) and B(B-d(0) --> e(+/-)mu(-/+)) < 3.5(4.5) x 10(-6) at 90(95)% confidence level. Using these limits, we set lower bounds on the corresponding Pati-Salam leptoquark masses and find that M-LQ(B-s(0)) > 20.7(19.3) TeV/c(2) and M-LQ(B-d(0)) > 21.7(20.4) TeV/c(2) at 90(95)% confidence level.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11571/577540
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