Leptoquark production in ultrahigh-energy neutrino interactions reexamined
- Department of Physics, The Pennsylvania State University, Mont Alto, Pennsylvania 17237 (United States)
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
The prospects for producing leptoquarks (LQs) in ultrahigh-energy (UHE) neutrino nucleon collisions are reexamined in the light of recent interpretations of DESY HERA data in terms of leptoquark production. We update predictions for cross sections for the production of first- and second-generation leptoquarks in UHE {nu}-N and {bar {nu}}-N collisions including (i) recent experimental limits on masses and couplings from the CERN LEP and Fermilab Tevatron colliders as well as rare processes, (ii) modern parton distributions, and (iii) radiative corrections to single leptoquark production. If the HERA events are due to an SU(2) doublet leptoquark that couples mainly to e{sup +}q states, we argue that there are likely other LQ states that couple to neutrinos that are close in mass, due to constraints from precision electroweak measurements. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 553203
- Journal Information:
- Physical Review, D, Vol. 56, Issue 11; Other Information: PBD: Dec 1997
- Country of Publication:
- United States
- Language:
- English
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