Search for first-generation scalar leptoquarks in pp collisions at {radical}(s)=1.96 TeV

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.051107· OSTI ID:20711399

Acosta, D; Cruz, A; Field, R D; Klimenko, S; Konigsberg, J; Korytov, A; Lungu, G; Mitselmakher, G; Necula, V; Pronko, A; Rossin, R; Sukhanov, A; Tsybychev, D; Wang, S M ^[1]; Adelman, J; Brubaker, E; Fedorko, W T; Furic, I; Grosso-Pilcher, C; Hoffman, K D ^[2]

---

1. University of Florida, Gainesville, Florida 32611 (United States)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States); and others

We report on a search for pair production of first-generation scalar leptoquarks (LQ) in pp collisions at {radical}(s)=1.96 TeV using an integrated luminosity of 203 pb{sup -1} collected at the Fermilab Tevatron collider by the CDF experiment. We observe no evidence for LQ production in the topologies arising from LQLQ{yields}eqeq and LQLQ{yields}eq{nu}q, and derive 95% C.L. upper limits on the LQ production cross section. The results are combined with those obtained from a separately reported CDF search in the topology arising from LQLQ{yields}{nu}q{nu}q and 95% C.L. lower limits on the LQ mass as a function of {beta}=BR(LQ{yields}eq) are derived. The limits are 236, 205 and 145 GeV/c{sup 2} for {beta}=1, {beta}=0.5 and {beta}=0.1, respectively.

• OSTI ID: 20711399
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
GEV RANGE
INCLUSIVE INTERACTIONS
PAIR PRODUCTION
PARTICLE IDENTIFICATION
PROTON-PROTON INTERACTIONS
QUARKS
SCALARS
TEV RANGE
TOPOLOGY