CP-violating dipole form factors of the top quark and tau lepton in scalar leptoquark models

Poulose, P. ; Rindani, Saurabh D. (1998) CP-violating dipole form factors of the top quark and tau lepton in scalar leptoquark models Pramana - Journal of Physics, 51 (3-4). pp. 387-403. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/jarch/pramana/51/387-403.pdf

Related URL: http://dx.doi.org/10.1007/BF02828932

Abstract

We calculate the CP-violating electric and weak dipole form factors of the top quark and the tau lepton in models with scalar leptoquarks coupling only to the third generation of quarks and leptons. We obtain numerical values of the real and imaginary parts of these form factors at various energies for different values of leptoquark masses and couplings. The existing limits on the tau electric and weak dipole form factors allow us to put a limit on the masses and couplings of such leptoquarks and therefore on the top electric and weak dipole form factors. We also discuss constraints on the form factors coming from indirect limits on leptoquark masses and couplings deduced from LEP results on Z properties.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:CP Violation; Scalar Leptoquarks; Dipole Moments; Top Quark; Tau Lepton
ID Code:43564
Deposited On:13 Jun 2011 06:30
Last Modified:18 May 2016 00:30

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