TeV Scale Leptoquarks as a Signature of Standard--like Superstring Models
High Energy Physics - Phenomenology
2010-11-01 v2
Abstract
We show that there can be TeV scale scalar and fermionic leptoquarks with very weak Yukawa couplings in a generic standard--like superstring model. Leptoquark--(down--like) quark mixing though present, is not large enough to violate the unitarity bounds on the CKM matrix. The constraints on leptoquark masses and couplings from FCNCs are easily satisfied whereas those from baryon number violation may cause problems. The leptoquarks of the model are compared to the ones in Calabi--Yau and flipped models.
Keywords
Cite
@article{arxiv.hep-ph/9312263,
title = {TeV Scale Leptoquarks as a Signature of Standard--like Superstring Models},
author = {Edi Halyo},
journal= {arXiv preprint arXiv:hep-ph/9312263},
year = {2010}
}
Comments
14 pages, uses phyzzx.tex, WIS-93/114/DEC-PH. (Section 2 is shortened, comparison to the flipped SU(5)XU(1) models added in Section 5 and six references added.)