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Title: Fermion masses and gauge mediated supersymmetry breaking from a single U(1)

Abstract

We present a supersymmetric model of flavor. A single U(1) gauge group is responsible for both generating the flavor spectrum and communicating supersymmetry breaking to the visible sector. The problem of flavor changing neutral currents is overcome, in part using an {open_quotes}effective supersymmetry{close_quotes} spectrum among the squarks, with the first two generations very heavy. All masses are generated dynamically and the theory is completely renormalizable. The model contains a simple Froggatt-Nielsen sector and communicates supersymmetry breaking via gauge mediation without requiring a separate messenger sector. By forcing the theory to be consistent with SU(5) grand unification, the model predicts a large tan{beta} and a massless up quark. While respecting the experimental bounds on {ital CP} violation in the {ital K} system, the model leads to a large enhancement of {ital CP} violation in B-{bar B} mixing as well as in {ital B} decay amplitudes. {copyright} {ital 1999} {ital The American Physical Society}

Authors:
 [1];  [2];  [3];  [1];  [4]
  1. Department of Physics 1560, University of Washington, Seattle, Washington 98195-1560 (United States)
  2. Institute for Nuclear Theory 1550, University of Washington, Seattle, Washington 98195-1550 (United States)
  3. SISSA, Via Beirut 2-4, I-34013 Trieste (Italy)|[INFN, sezione Trieste (Italy)
  4. Theory Division, CERN, CH-1211 Geneva 23 (Switzerland)
Publication Date:
OSTI Identifier:
362734
Resource Type:
Journal Article
Journal Name:
Physical Review, D
Additional Journal Information:
Journal Volume: 60; Journal Issue: 5; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; UNITARY SYMMETRY; B MESONS; KAONS; SUPERSYMMETRY; SYMMETRY BREAKING; GAUGE INVARIANCE; FLAVOR MODEL; U-1 GROUPS; SU-5 GROUPS; CP INVARIANCE; NEUTRAL CURRENTS

Citation Formats

Kaplan, D.E., Lepeintre, F., Masiero, A., Nelson, A.E., and Riotto, A. Fermion masses and gauge mediated supersymmetry breaking from a single U(1). United States: N. p., 1999. Web. doi:10.1103/PhysRevD.60.055003.
Kaplan, D.E., Lepeintre, F., Masiero, A., Nelson, A.E., & Riotto, A. Fermion masses and gauge mediated supersymmetry breaking from a single U(1). United States. doi:10.1103/PhysRevD.60.055003.
Kaplan, D.E., Lepeintre, F., Masiero, A., Nelson, A.E., and Riotto, A. Wed . "Fermion masses and gauge mediated supersymmetry breaking from a single U(1)". United States. doi:10.1103/PhysRevD.60.055003.
@article{osti_362734,
title = {Fermion masses and gauge mediated supersymmetry breaking from a single U(1)},
author = {Kaplan, D.E. and Lepeintre, F. and Masiero, A. and Nelson, A.E. and Riotto, A.},
abstractNote = {We present a supersymmetric model of flavor. A single U(1) gauge group is responsible for both generating the flavor spectrum and communicating supersymmetry breaking to the visible sector. The problem of flavor changing neutral currents is overcome, in part using an {open_quotes}effective supersymmetry{close_quotes} spectrum among the squarks, with the first two generations very heavy. All masses are generated dynamically and the theory is completely renormalizable. The model contains a simple Froggatt-Nielsen sector and communicates supersymmetry breaking via gauge mediation without requiring a separate messenger sector. By forcing the theory to be consistent with SU(5) grand unification, the model predicts a large tan{beta} and a massless up quark. While respecting the experimental bounds on {ital CP} violation in the {ital K} system, the model leads to a large enhancement of {ital CP} violation in B-{bar B} mixing as well as in {ital B} decay amplitudes. {copyright} {ital 1999} {ital The American Physical Society}},
doi = {10.1103/PhysRevD.60.055003},
journal = {Physical Review, D},
number = 5,
volume = 60,
place = {United States},
year = {1999},
month = {9}
}