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Phenomenology of the two Higgs doublet sector of a quark-lepton symmetric model

Technical Report:

Abstract

In the simplest examples of models with a discrete quark-lepton symmetry, an electroweak symmetry braking sector with more than one Higgs doublet is necessary to obtain the correct mass relations between quarks and leptons. A two Higgs doublet model version has flavour-nonconserving Yukawa couplings, which are proportional to the masses of the quark-lepton symmetric partners of the fermions. The main focus of this paper will be on flavour-changing leptonic decays, in particular those of muons since these give the most opportunity for experimental investigation. The neutral Higgs mediated decay {mu}{sup -} {yields} e{sup -} e{sup +}e{sup -} will be investigated at tree-level, as will the charged-Higgs contribution to the decay {mu} {sup -} {yields} {upsilon} {sub {mu}} e{sup -}{upsilon} {sup -}bar {sub e}. A one-loop calculation of the process {mu} {yields} e {gamma} will be performed. This will lead on to an examination of the effect on the muon anomalous magnetic moment. Finally, the effect of the quark-lepton symmetric 2HDM contribution to b {yields} s {gamma} will briefly be considered. 10 refs., 2 figs.
Publication Date:
Mar 01, 1994
Product Type:
Technical Report
Report Number:
UM-P-94/21; OZ-94/8.
Reference Number:
SCA: 662240; 662370; PA: AIX-26:018056; EDB-95:032324; SN: 95001330061
Resource Relation:
Other Information: PBD: Mar 1994
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LEPTONS; FLAVOR MODEL; SYMMETRY BREAKING; BRANCHING RATIO; EXPERIMENTAL DATA; GEV RANGE; HIGGS BOSONS; LAGRANGIAN FUNCTION; LEPTONIC DECAY; MASS; QUARKS; STANDARD MODEL; SU GROUPS; YUKAWA POTENTIAL; 662240; 662370; MODELS FOR STRONG INTERACTIONS; DECAYS OF LEPTONS
OSTI ID:
10113760
Research Organizations:
Melbourne Univ., Parkville, VIC (Australia). School of Physics
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE95616337; TRN: AU9414224018056
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
19 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Lassig, C C, and Volkas, R R. Phenomenology of the two Higgs doublet sector of a quark-lepton symmetric model. Australia: N. p., 1994. Web.
Lassig, C C, & Volkas, R R. Phenomenology of the two Higgs doublet sector of a quark-lepton symmetric model. Australia.
Lassig, C C, and Volkas, R R. 1994. "Phenomenology of the two Higgs doublet sector of a quark-lepton symmetric model." Australia.
@misc{etde_10113760,
title = {Phenomenology of the two Higgs doublet sector of a quark-lepton symmetric model}
author = {Lassig, C C, and Volkas, R R}
abstractNote = {In the simplest examples of models with a discrete quark-lepton symmetry, an electroweak symmetry braking sector with more than one Higgs doublet is necessary to obtain the correct mass relations between quarks and leptons. A two Higgs doublet model version has flavour-nonconserving Yukawa couplings, which are proportional to the masses of the quark-lepton symmetric partners of the fermions. The main focus of this paper will be on flavour-changing leptonic decays, in particular those of muons since these give the most opportunity for experimental investigation. The neutral Higgs mediated decay {mu}{sup -} {yields} e{sup -} e{sup +}e{sup -} will be investigated at tree-level, as will the charged-Higgs contribution to the decay {mu} {sup -} {yields} {upsilon} {sub {mu}} e{sup -}{upsilon} {sup -}bar {sub e}. A one-loop calculation of the process {mu} {yields} e {gamma} will be performed. This will lead on to an examination of the effect on the muon anomalous magnetic moment. Finally, the effect of the quark-lepton symmetric 2HDM contribution to b {yields} s {gamma} will briefly be considered. 10 refs., 2 figs.}
place = {Australia}
year = {1994}
month = {Mar}
}