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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

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 }
Authors:
; ; ; ; ;  [1] ; ; ; ; ;  [2] ; ; ; ; ;  [3] ; ; ;  [4] ; more »; ; ; ; ; ; ;  [5] ; ; ; ; ; ;  [6] ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [7] ; ; ; ;  [8] ; ; ; ; ; ; ;  [9] ; ; ;  [10] ; ; ; ; ; ; ; ; « less
  1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
  3. Brandeis University, Waltham, Massachusetts 02254 (United States)
  4. University of California at Los Angeles, Los Angeles, California 90024 (United States)
  5. University of Chicago, Chicago, Illinois 60637 (United States)
  6. Duke University, Durham, North Carolina 27708 (United States)
  7. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
  8. University of Florida, Gainesville, Florida 32611 (United States)
  9. Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
  10. University of Geneva, CH-1211 Geneva 4 (Switzerland)
Publication Date:
OSTI Identifier:
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