Bounds on vector leptoquarks

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.536· OSTI ID:7042140

Leurer, M ^[1]

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1. Department of Particle Physics, The Weizmann Institute, Rehovot 76100 (Israel)

We derive bounds on vector leptoquarks coupling to the first generation, using data from low energy experiments as well as from high energy accelerators. Similarly to the case of scalar leptoquarks, we find that the strongest indirect bounds arise from atomic parity violation and universality in leptonic [pi] decays. These bounds are considerably stronger than the first direct bounds of the DESY [ital ep] collider HERA, restricting vector leptoquarks that couple with electromagnetic strength to right-handed quarks to lie above 430 GeV or 460 GeV, and leptoquarks that couple with electromagnetic strength to left-handed quarks to lie above 1.3 TeV, 1.2 TeV, and 1.5 TeV for the SU(2)[sub [ital W]] singlet, doublet, and triplet, respectively.

• OSTI ID: 7042140
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:1; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

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ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
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