Search for pair production of second generation scalar leptoquarks in p over(p, ̄) collisions at sqrt(s) = 1.96  TeV

Search for pair production of second generation scalar leptoquarks in p over(p, ̄) collisions at sqrt(s) = 1.96  TeV

We report on a search for the pair production of second generation scalar leptoquarks ( LQ2) in p over(p, ̄) collisions at the center-of-mass energy sqrt(s) = 1.96   TeV, using data corresponding to an integrated luminosity of 294 ± 19   pb-1 recorded with the DØ detector. No evidence for a leptoqua...

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Bibliographic Details
Main Authors: Abazov, V, Abbott, B, Abolins, M, Acharya, B, Adams, M, Adams, T, Agelou, M, Agram, J, Ahn, S, Ahsan, M, Alexeev, G, Alkhazov, G, Alton, A, Alverson, G, Alves, G, Anastasoaie, M, Andeen, T, Anderson, S, Andrieu, B, Anzelc, MS, Arnoud, Y, Arov, M, Askew, A, Åsman, B
Format: Journal article
Published: 2006
Description
Summary:We report on a search for the pair production of second generation scalar leptoquarks ( LQ2) in p over(p, ̄) collisions at the center-of-mass energy sqrt(s) = 1.96   TeV, using data corresponding to an integrated luminosity of 294 ± 19   pb-1 recorded with the DØ detector. No evidence for a leptoquark signal in the LQ2 over(LQ, -)2 → μ q μ q channel has been observed, and upper bounds on the product of cross section times branching fraction were set. This yields lower mass limits of mLQ2 > 247   GeV / c2 for β = B ( LQ2 → μ q ) = 1 and mLQ2 > 182   GeV / c2 for β = 1 / 2. Combining these limits with previous DØ results, the lower limits on the mass of a second generation scalar leptoquark are mLQ2 > 251   GeV / c2 and mLQ2 > 204   GeV / c2 for β = 1 and β = 1 / 2, respectively. © 2006 Elsevier B.V. All rights reserved.

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