Search for pair production of second generation scalar leptoquarks
2009 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 671, no 2, 224-232 p.Article in journal (Refereed) Published
We report on a search for the pair production of second generation scalar leptoquarks (LQ) in p (p) over bar collisions at the center of mass energy root s- = 1.96 TeV using a data set corresponding to an integrated luminosity of 1.0 fb(-1) collected with the D empty set experiment at the Fermilab Tevatron Collider. Topologies arising from the LQ (LQ) over bar -> mu q nu q and LQ (LQ) over bar -> mu q mu q decay modes are investigated. No excess of data over the standard model prediction is observed and upper limits on the leptoquark pair production cross section are derived at the 95% C.L. as a function of the leptoquark mass and the branching fraction beta for the decay LQ -> mu q. These are interpreted as lower limits on the leptoquark mass as a function of beta. For beta = 1 (0.5), scalar second generation leptoquarks with masses up to 316 GeV (270 GeV) are excluded.
Place, publisher, year, edition, pages
2009. Vol. 671, no 2, 224-232 p.
IdentifiersURN: urn:nbn:se:uu:diva-139987DOI: 10.1016/j.physletb.2008.12.017ISI: 000262913800007OAI: oai:DiVA.org:uu-139987DiVA: diva2:382645