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
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
- Brandeis University, Waltham, Massachusetts 02254 (United States)
- University of California at Los Angeles, Los Angeles, California 90024 (United States)
- University of Chicago, Chicago, Illinois 60637 (United States)
- Duke University, Durham, North Carolina 27708 (United States)
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- University of Florida, Gainesville, Florida 32611 (United States)
- Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)
- University of Geneva, CH-1211 Geneva 4 (Switzerland)
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 }
- OSTI ID:
- 300158
- Journal Information:
- Physical Review Letters, Vol. 81, Issue 26; Other Information: PBD: Dec 1998
- Country of Publication:
- United States
- Language:
- English
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