Year: 1995
Type: article
Abstract: Light first generation leptoquarks are being hunted for at the DESY ep collider HERA and at Fermilab and there are various proposals for further searches in future machines. Such leptoquarks are, however, problematic from a theoretical point of view: Low energy precision measurements imply strong constraints on the couplings of the leptoquarks, and up until now the fulfillment of these constraints seemed extremely unnatural. Here we show that horizontal symmetries, which are very conventional and widely used in the literature for completely different purposes, can suppress the unwanted couplings. Therefore light first generation leptoquarks can be natural.
Authors: Ernest Baver, Miriam Leurer
Institution: Weizmann Institute of Science
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1969300998