Search for the decays B{sup 0}{sub s}, B{sup 0}{sub d} {yields} e{+-}{mu}{-+} and Pati-Salam leptoquarks.

Journal Article · Tue Dec 01 04:00:00 EST 1998 · Phys. Rev. Lett.

DOI:https://doi.org/10.1103/PhysRevLett.81.5742· OSTI ID:942515

Abe, F; Akimoto, H; Akopian, A; Albrow, M G; Amadon, A; Blair, R E; Byrum, K L; Kovacs, E; Kuhlmann, S E; LeCompte, T; Nodulman, L; Proudfoot, J; Thurman-Keup, R; Wagner, R G; Wicklund, A B; FNAL,

We have searched for the decays B{sub s}{sup 0}{yields}e{sup {+-}}{mu}{sup {-+}} and B{sub d}{sup 0}{yields}e{sup {+-}}{mu}{sup {-+}} using a 102 pb{sup -1} data sample of p{ovr p} collisions at sqrt[s] = 1.8 TeV collected with the Collider Detector at Fermilab. We set upper limits on the branching fractions of B(B{sub s}{sup 0}{yields}e{sup {+-}}{mu}{sup {-+}})<6.1(8.2)x10{sup -6} and B(B{sub d}{sup 0}{yields}e{sup {+-}}{mu}{sup {-+}})<3.5(4.5)x10{sup -6} at 90(95)% confidence level. Using these limits, we set lower bounds on the corresponding Pati-Salam leptoquark masses and find that M{sub LQ}(B{sub s}{sup 0})>20.7(19.3) TeV/c{sup 2} and M{sub LQ}(B{sub d}{sup 0})>21.7(20.4) TeV/c{sup 2} at 90(95)% confidence level.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC.NSF; FOR; OUS
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942515
• Report Number(s): ANL-HEP-PR-99-19
• Journal Information: Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 26 ; Dec. 1998 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: ENGLISH

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