Search for first-generation scalar leptoquarks in p(p)over-bar collisions at root s=1.96 TeV
2005 (English)In: Physical Review D. Particles and fields, ISSN 0556-2821, E-ISSN 1089-4918, Vol. 71, no 7, 071104- p.Article in journal (Refereed) Published
We report on a search for pair production of first-generation scalar leptoquarks (LQ) in p (p) over bar collisions at root s=1.96 TeV using an integrated luminosity of 252 pb(-1) collected at the Fermilab Tevatron collider by the D0 detector. We observe no evidence for LQ production in the topologies arising from LQ(LQ) over bar -> eqeq and LQ(LQ) over bar -> eq nu q, and derive 95% C.L. lower limits on the LQ mass as a function of beta, where beta is the branching fraction for LQ -> eq. The limits are 241 and 218 GeV/c(2) for beta=1 and 0.5, respectively. These results are combined with those obtained by D0 at root s=1.8 TeV, which increases these LQ mass limits to 256 and 234 GeV/c(2).
Place, publisher, year, edition, pages
2005. Vol. 71, no 7, 071104- p.
IdentifiersURN: urn:nbn:se:kth:diva-37871DOI: 10.1103/PhysRevD.71.071104ISI: 000228765400004ScopusID: 2-s2.0-18444374165OAI: oai:DiVA.org:kth-37871DiVA: diva2:435370