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Title: Dimension-five operators in grand unified theories

Abstract

Extensions of the standard model with low-energy supersymmetry generically allow baryon- and lepton-number violating operators of dimension four and five, yielding rapid proton decay. The dimension-four operators are usually forbidden by matter parity. We investigate to what extent the appearance of dimension-five operators at the Planck scale may be constrained by the different grand-unified gauge groups. Dimension-five operators are suppressed in models based on E{sub 6} and SU(3){sub C}xSU(3){sub L}xSU(3){sub R}, where four matter fields do not form a gauge singlet. An intermediate scale offers the possibility to sufficiently suppress these dimension-five operators.

Authors:
; ;  [1]
  1. Department of Physics, University of Illinois at Urbana-Champaign 1110 West Green Street, Urbana, Illinois 61801 (United States)
Publication Date:
OSTI Identifier:
21011026
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.75.037702; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FIELD OPERATORS; LEPTON NUMBER; MANY-DIMENSIONAL CALCULATIONS; PARITY; PROTONS; STANDARD MODEL; SU-3 GROUPS; SUPERSYMMETRY; SYMMETRY BREAKING

Citation Formats

Sayre, Joshua, Wiesenfeldt, Soeren, and Willenbrock, Scott. Dimension-five operators in grand unified theories. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.037702.
Sayre, Joshua, Wiesenfeldt, Soeren, & Willenbrock, Scott. Dimension-five operators in grand unified theories. United States. doi:10.1103/PHYSREVD.75.037702.
Sayre, Joshua, Wiesenfeldt, Soeren, and Willenbrock, Scott. Thu . "Dimension-five operators in grand unified theories". United States. doi:10.1103/PHYSREVD.75.037702.
@article{osti_21011026,
title = {Dimension-five operators in grand unified theories},
author = {Sayre, Joshua and Wiesenfeldt, Soeren and Willenbrock, Scott},
abstractNote = {Extensions of the standard model with low-energy supersymmetry generically allow baryon- and lepton-number violating operators of dimension four and five, yielding rapid proton decay. The dimension-four operators are usually forbidden by matter parity. We investigate to what extent the appearance of dimension-five operators at the Planck scale may be constrained by the different grand-unified gauge groups. Dimension-five operators are suppressed in models based on E{sub 6} and SU(3){sub C}xSU(3){sub L}xSU(3){sub R}, where four matter fields do not form a gauge singlet. An intermediate scale offers the possibility to sufficiently suppress these dimension-five operators.},
doi = {10.1103/PHYSREVD.75.037702},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 75,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2007},
month = {Thu Feb 01 00:00:00 EST 2007}
}