Leptoquark production in ultrahigh-energy neutrino interactions reexamined

被引：20

作者：

Doncheski, MA ^{[1
]}

Robinett, RW ^{[1
]}

机构：

[1] PENN STATE UNIV,DEPT PHYS,UNIVERSITY PK,PA 16802

来源：

PHYSICAL REVIEW D | 1997年 / 56卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.56.7412

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 <(nu)over bar>-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) doubler leptoquark that couples mainly to e(+)q states, we argue that then are likely other LQ states that couple to neutrinos that are close in mass, due to constraints from precision electroweak measurements.

引用

页码：7412 / 7415

页数：4

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