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Title: Direct and indirect detection of neutralino dark matter and collider signatures in an SO(10) model with two intermediate scales

Abstract

We investigate the detectability of neutralino dark matter via direct and indirect searches as well as collider signatures of an SO(10) model with two intermediate scales. We compare the direct dark matter detection cross section and the muon flux due to neutralino annihilation in the Sun that we obtain in this model with minimal supergravity predictions and with the sensitivity of current and future experiments. In both cases, we find that the detectability improves as the model deviates more from minimal supergravity. In order to study collider signatures, we choose two benchmark points that represent the main phenomenological features of the model: a lower value of |{mu}| and reduced third-generation sfermion masses due to extra Yukawa coupling contributions in the renormalization group equations and increased first- and second-generation slepton masses due to new gaugino loop contributions. We show that measurements at the LHC can distinguish this model from minimal supergravity in both cases, by counting events containing leptonically decaying Z{sup 0} bosons, heavy neutral Higgs bosons, or like-sign lepton pairs. The methods we develop can be used more generally to characterize models of weak-scale supersymmetry.

Authors:
;  [1];  [1]
  1. Physikalisches Institut and Bethe Center for Theoretical Physics, Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany)
Publication Date:
OSTI Identifier:
21503821
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 82; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.82.095005; (c) 2010 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; BENCHMARKS; CERN LHC; COMPARATIVE EVALUATIONS; CROSS SECTIONS; DETECTION; FORECASTING; HIGGS BOSONS; LEPTONIC DECAY; MASS; MUONS; NONLUMINOUS MATTER; RENORMALIZATION; SENSITIVITY; SIMULATION; SO-10 GROUPS; SUPERGRAVITY; SUPERSYMMETRY; YUKAWA POTENTIAL; Z NEUTRAL BOSONS; ACCELERATORS; BASIC INTERACTIONS; BOSONS; CYCLIC ACCELERATORS; DECAY; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; FIELD THEORIES; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LEPTONS; LIE GROUPS; MATTER; NUCLEAR POTENTIAL; PARTICLE DECAY; PARTICLE INTERACTIONS; POSTULATED PARTICLES; POTENTIALS; SO GROUPS; STORAGE RINGS; SYMMETRY; SYMMETRY GROUPS; SYNCHROTRONS; UNIFIED-FIELD THEORIES; WEAK INTERACTIONS; WEAK PARTICLE DECAY

Citation Formats

Drees, Manuel, Kim, Ju Min, Park, Eun-Kyung, and LAPTH, Universite de Savoie, CNRS, B.P. 110, F-74941 Annecy-le-Vieux Cedex. Direct and indirect detection of neutralino dark matter and collider signatures in an SO(10) model with two intermediate scales. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.82.095005.
Drees, Manuel, Kim, Ju Min, Park, Eun-Kyung, & LAPTH, Universite de Savoie, CNRS, B.P. 110, F-74941 Annecy-le-Vieux Cedex. Direct and indirect detection of neutralino dark matter and collider signatures in an SO(10) model with two intermediate scales. United States. https://doi.org/10.1103/PHYSREVD.82.095005
Drees, Manuel, Kim, Ju Min, Park, Eun-Kyung, and LAPTH, Universite de Savoie, CNRS, B.P. 110, F-74941 Annecy-le-Vieux Cedex. 2010. "Direct and indirect detection of neutralino dark matter and collider signatures in an SO(10) model with two intermediate scales". United States. https://doi.org/10.1103/PHYSREVD.82.095005.
@article{osti_21503821,
title = {Direct and indirect detection of neutralino dark matter and collider signatures in an SO(10) model with two intermediate scales},
author = {Drees, Manuel and Kim, Ju Min and Park, Eun-Kyung and LAPTH, Universite de Savoie, CNRS, B.P. 110, F-74941 Annecy-le-Vieux Cedex},
abstractNote = {We investigate the detectability of neutralino dark matter via direct and indirect searches as well as collider signatures of an SO(10) model with two intermediate scales. We compare the direct dark matter detection cross section and the muon flux due to neutralino annihilation in the Sun that we obtain in this model with minimal supergravity predictions and with the sensitivity of current and future experiments. In both cases, we find that the detectability improves as the model deviates more from minimal supergravity. In order to study collider signatures, we choose two benchmark points that represent the main phenomenological features of the model: a lower value of |{mu}| and reduced third-generation sfermion masses due to extra Yukawa coupling contributions in the renormalization group equations and increased first- and second-generation slepton masses due to new gaugino loop contributions. We show that measurements at the LHC can distinguish this model from minimal supergravity in both cases, by counting events containing leptonically decaying Z{sup 0} bosons, heavy neutral Higgs bosons, or like-sign lepton pairs. The methods we develop can be used more generally to characterize models of weak-scale supersymmetry.},
doi = {10.1103/PHYSREVD.82.095005},
url = {https://www.osti.gov/biblio/21503821}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 82,
place = {United States},
year = {2010},
month = {11}
}