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Title: Neutralino dark matter and Higgs mediated lepton flavor violation in the minimal supersymmetric standard model

Abstract

We reexamine the prospects for the detection of Higgs-mediated lepton flavor violation at LHC, at a photon collider and in {tau} decays such as {tau}{yields}{mu}{eta}, {tau}{yields}{mu}{gamma}. We allow for the presence of a large, model independent, source of lepton flavor violation in the slepton mass matrix in the {tau}-{mu} sector by the mass insertion approximation and constrain the parameter space using the {tau} lepton flavor violating decays together with the B-mesons physics observables, the anomalous magnetic moment of the muon, and the dark matter relic density. We further impose the exclusion limit on spin-independent neutralino-nucleon scattering from CDMS and the CDF limits from direct search of the heavy neutral Higgs at the TEVATRON. We find rates probably too small to be observed at future experiments if models have to accommodate for the relic density measured by WMAP and explain the (g-2){sub {mu}}anomaly: better prospects are found if these two constraints are applied only as upper bounds. The spin-independent neutralino-nucleon cross section in the studied constrained parameter space is just below the present CDMS limit and the running XENON100 experiment will cover the region of the parameter space where the lightest neutralino has large gaugino-Higgsino mixing.

Authors:
 [1];  [2]
  1. Universita di Perugia, Dipartimento di Fisica, Via Alessandro Pascoli, 06123, Perugia (Italy)
  2. Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Via A. Pascoli, 06123 Perugia (Italy)
Publication Date:
OSTI Identifier:
21409226
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.81.036009; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; B MESONS; CERN LHC; CROSS SECTIONS; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; FLAVOR MODEL; HIGGS BOSONS; HIGGS MODEL; MAGNETIC MOMENTS; MASS; MUONS; NONLUMINOUS MATTER; PARTICLE DECAY; SCATTERING; SPIN; STANDARD MODEL; SUPERSYMMETRY; TAU PARTICLES; ACCELERATORS; ANGULAR MOMENTUM; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CALCULATION METHODS; COMPOSITE MODELS; CYCLIC ACCELERATORS; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; HEAVY LEPTONS; LEPTONS; MATHEMATICAL MODELS; MATTER; MEASURING INSTRUMENTS; MESONS; PARTICLE MODELS; PARTICLE PROPERTIES; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL; RADIATION DETECTORS; STORAGE RINGS; SYMMETRY; SYNCHROTRONS; UNIFIED GAUGE MODELS

Citation Formats

Cannoni, M, and Panella, O. Neutralino dark matter and Higgs mediated lepton flavor violation in the minimal supersymmetric standard model. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.036009.
Cannoni, M, & Panella, O. Neutralino dark matter and Higgs mediated lepton flavor violation in the minimal supersymmetric standard model. United States. doi:10.1103/PHYSREVD.81.036009.
Cannoni, M, and Panella, O. Mon . "Neutralino dark matter and Higgs mediated lepton flavor violation in the minimal supersymmetric standard model". United States. doi:10.1103/PHYSREVD.81.036009.
@article{osti_21409226,
title = {Neutralino dark matter and Higgs mediated lepton flavor violation in the minimal supersymmetric standard model},
author = {Cannoni, M and Panella, O},
abstractNote = {We reexamine the prospects for the detection of Higgs-mediated lepton flavor violation at LHC, at a photon collider and in {tau} decays such as {tau}{yields}{mu}{eta}, {tau}{yields}{mu}{gamma}. We allow for the presence of a large, model independent, source of lepton flavor violation in the slepton mass matrix in the {tau}-{mu} sector by the mass insertion approximation and constrain the parameter space using the {tau} lepton flavor violating decays together with the B-mesons physics observables, the anomalous magnetic moment of the muon, and the dark matter relic density. We further impose the exclusion limit on spin-independent neutralino-nucleon scattering from CDMS and the CDF limits from direct search of the heavy neutral Higgs at the TEVATRON. We find rates probably too small to be observed at future experiments if models have to accommodate for the relic density measured by WMAP and explain the (g-2){sub {mu}}anomaly: better prospects are found if these two constraints are applied only as upper bounds. The spin-independent neutralino-nucleon cross section in the studied constrained parameter space is just below the present CDMS limit and the running XENON100 experiment will cover the region of the parameter space where the lightest neutralino has large gaugino-Higgsino mixing.},
doi = {10.1103/PHYSREVD.81.036009},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 3,
volume = 81,
place = {United States},
year = {2010},
month = {2}
}