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Title: Search for the Decays B{sup 0}{sub s} , B{sup 0}{sub d} {r_arrow} e{sup {plus_minus}}{mu}{sup {minus_plus} } and Pati-Salam Leptoquarks

Search for the Decays B{sup 0}{sub s} , B{sup 0}{sub d} {r_arrow} e{sup {plus_minus}}{mu}{sup {minus_plus} } and Pati-Salam Leptoquarks We have searched for the decays B{sup 0}{sub s}{r_arrow}e{sup {plus_minus}}{mu}{sup {minus_plus}} and B{sup 0}{sub d}{r_arrow}e{sup {plus_minus}}{mu}{sup {minus_plus}} using a 102 pb{sup {minus}1} data sample of p{ovr p} collisions at {radical} (s) =1.8 TeV collected with the Collider Detector at Fermilab. We set upper limits on the branching fractions of B(B{sup 0}{sub s}{r_arrow}e{sup {plus_minus} }{mu}{sup {minus_plus}}){lt}6.1(8.2) {times}10{sup {minus}6} and B(B{sup 0}{sub d}{r_arrow}e{sup {plus_minus} }{mu}{sup {minus_plus}}){lt}3.5(4.5) {times}10{sup {minus}6} at 90(95){percent} confidence level. Using these limits, we set lower bounds on the corresponding Pati-Salam leptoquark masses and find that M{sub LQ}(B{sup 0}{sub s}) {gt}20.7(19.3) TeV /c{sup 2} and M{sub LQ}(B{sup 0}{sub d}) {gt}21.7(20.4) TeV /c{sup 2} at 90(95){percent} confidence level. {copyright} {ital 1998} {ital The American Physical Society }
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Publication Date:
OSTI Identifier:OSTI ID: 300158
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review Letters; Journal Volume: 81; Journal Issue: 26; Other Information: PBD: Dec 1998
Country of Publication:United States
Language:English
Subject: 66 PHYSICS; POSITRONS; B MESONS; B NEUTRAL MESONS; MUONS; FERMILAB COLLIDER DETECTOR; PARTICLE DECAY; BRANCHING RATIO; QUARKS