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Possible reason why leptons are lighter than quarks

Abstract

The minimal model of spontaneously broken leptonic colour and discrete quark-lepton symmetry predicts that charged leptons have the same masses as their partner charge +2/3 quarks up to small radiative corrections. By invoking a different pattern of symmetry braking, a similar model can be constructed with the structural feature that charged leptons have to be lighter than their partner quarks because of fermion mixing effects. As well as furnishing a new model-building tool, this is phenomenologically interesting because the scale of the new physics responsible for the quark-lepton mass hierarchy could be as low as several hundred GeV. 8 refs.
Authors:
Publication Date:
Dec 31, 1994
Product Type:
Technical Report
Report Number:
UM-P-94/19; OZ-94/6.
Reference Number:
SCA: 662430; 662440; PA: AIX-26:018191; EDB-95:032436; SN: 95001330107
Resource Relation:
Other Information: PBD: [1994]
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LEPTONS; MASS; QUARKS; COLOR MODEL; CONFIGURATION MIXING; HIGGS BOSONS; RADIATIVE CORRECTIONS; SU GROUPS; SYMMETRY BREAKING; 662430; 662440; PROPERTIES OF LEPTONS; PROPERTIES OF OTHER PARTICLES INCLUDING HYPOTHETICAL PARTICLES
Sponsoring Organizations:
Australian Research Council, Canberra, ACT (Australia)
OSTI ID:
10113771
Research Organizations:
Melbourne Univ., Parkville, VIC (Australia). School of Physics
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE95616383; TRN: AU9414215018191
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
9 p.
Announcement Date:
Jun 30, 2005

Citation Formats

Volkas, R R. Possible reason why leptons are lighter than quarks. Australia: N. p., 1994. Web.
Volkas, R R. Possible reason why leptons are lighter than quarks. Australia.
Volkas, R R. 1994. "Possible reason why leptons are lighter than quarks." Australia.
@misc{etde_10113771,
title = {Possible reason why leptons are lighter than quarks}
author = {Volkas, R R}
abstractNote = {The minimal model of spontaneously broken leptonic colour and discrete quark-lepton symmetry predicts that charged leptons have the same masses as their partner charge +2/3 quarks up to small radiative corrections. By invoking a different pattern of symmetry braking, a similar model can be constructed with the structural feature that charged leptons have to be lighter than their partner quarks because of fermion mixing effects. As well as furnishing a new model-building tool, this is phenomenologically interesting because the scale of the new physics responsible for the quark-lepton mass hierarchy could be as low as several hundred GeV. 8 refs.}
place = {Australia}
year = {1994}
month = {Dec}
}