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Bubble wall dynamics, generalized yukawa couplings and adequate electroweak baryogenesis in two-Higgs-doublet model

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Title Bubble wall dynamics, generalized yukawa couplings and adequate electroweak baryogenesis in two-Higgs-doublet model
 
Creator DUARI, SB
YAJNIK, UA
 
Subject phase-transition
sphaleron transitions
 
Description Baryogenesis at the electroweak scale depends on bubble wall dynamics and particle physics. We trace the dynamics of the relative phase during bubble formation in two-Higgs-doublet model (2HDM) and compute its contribution to the mechanism proposed by McLerran-Shaposhnikov-Turok-Voloshin. This enhances the intrinsic contribution of the diagram and would mean overall enhancement if diffusion processes are taken into account. We also show that in 2HDM with less stringent constraints on Yukawa couplings than those imposed by natural flavor conservation, there are additional diagrams contributing to the effective chemical potential. These two effects can combine with several others to produce adequate asymmetry at the electroweak scale.
 
Publisher WORLD SCIENTIFIC PUBL CO PTE LTD
 
Date 2011-09-02T00:12:59Z
2011-12-26T12:59:51Z
2011-12-27T05:52:51Z
2011-09-02T00:12:59Z
2011-12-26T12:59:51Z
2011-12-27T05:52:51Z
1996
 
Type Article
 
Identifier MODERN PHYSICS LETTERS A, 11(31), 2481-2487
0217-7323
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12905
http://hdl.handle.net/10054/12905
 
Language en