Ananthanarayan, B and Pandita, PN (1999) Infra-red stable fixed points of R-parity violating Yukawa couplings in supersymmetric models. [Preprint]
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Abstract
We investigate the infra-red stable fixed points of the Yukawa couplings in the minimal version of the supersymmetric standard model with R-parity violation. Retaining only the R-parity violating couplings of higher generations, we analytically study the solutions of the renormalization group equations of these couplings together with the top- and b-quark Yukawa couplings. We show that only the B-violating coupling $\lambda^{''}_{233}$ approaches a non-trivial infra-red stable fixed point, whereas all other non-trivial fixed point solutions are either unphysical or unstable in the infra-red region. However, this fixed point solution predicts a top-quark Yukawa coupling which is incompatible with the top quark mass for any value of $\tan\beta$.
Item Type: | Preprint |
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Additional Information: | Phys.Lett. B454 (1999) 84-91 |
Department/Centre: | Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003) |
Date Deposited: | 25 Aug 2008 |
Last Modified: | 19 Sep 2010 04:13 |
URI: | http://eprints.iisc.ac.in/id/eprint/851 |
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