Multidimensional mSUGRA likelihood maps
Abstract
We calculate the likelihood map in the full 7dimensional parameter space of the minimal supersymmetric standard model assuming universal boundary conditions on the supersymmetry breaking terms. Simultaneous variations of m{sub 0}, A{sub 0}, M{sub 1/2}, tan{beta}, m{sub t}, m{sub b} and {alpha}{sub s}(M{sub Z}) are applied using a Markov chain Monte Carlo algorithm. We use measurements of b{yields}s{gamma}, (g2){sub {mu}} and {omega}{sub DM}h{sup 2} in order to constrain the model. We present likelihood distributions for some of the sparticle masses, for the branching ratio of B{sub s}{sup 0}{yields}{mu}{sup +}{mu}{sup } and for m{sub {tau}}{sub tilde}m{sub {chi}{sub 1}{sup 0}}. An upper limit of 2x10{sup 8} on this branching ratio might be achieved at the Tevatron, and would rule out 29% of the currently allowed likelihood. If one allows for nonthermalneutralino components of dark matter, this fraction becomes 35%. The mass ordering allows the important cascade decay qtilde{sub L}{yields}{chi}{sub 2}{sup 0}{yields}ltilde{sub R}{yields}{chi}{sub 1}{sup 0} with a likelihood of 24{+}4%. The stopcoannihilation region is highly disfavored, whereas the light Higgs region is marginally disfavored.
 Authors:
 DAMTP, CMS, Wilberforce Road, Cambridge, CB3 0WA (United Kingdom)
 (United Kingdom)
 Publication Date:
 OSTI Identifier:
 20774642
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.73.015013; (c) 2006 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; ALGORITHMS; B S MESONS; BOUNDARY CONDITIONS; BRANCHING RATIO; DISTRIBUTION; FERMILAB TEVATRON; HIGGS BOSONS; HIGGS MODEL; LEPTONIC DECAY; MAGNETIC MOMENTS; MARKOV PROCESS; MONTE CARLO METHOD; MUONS MINUS; MUONS PLUS; NONLUMINOUS MATTER; REST MASS; SPARTICLES; STANDARD MODEL; SUPERGRAVITY; SUPERSYMMETRY; SYMMETRY BREAKING
Citation Formats
Allanach, B.C., Lester, C.G., and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE. Multidimensional mSUGRA likelihood maps. United States: N. p., 2006.
Web. doi:10.1103/PhysRevD.73.015013.
Allanach, B.C., Lester, C.G., & Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE. Multidimensional mSUGRA likelihood maps. United States. doi:10.1103/PhysRevD.73.015013.
Allanach, B.C., Lester, C.G., and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE. Sun .
"Multidimensional mSUGRA likelihood maps". United States.
doi:10.1103/PhysRevD.73.015013.
@article{osti_20774642,
title = {Multidimensional mSUGRA likelihood maps},
author = {Allanach, B.C. and Lester, C.G. and Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE},
abstractNote = {We calculate the likelihood map in the full 7dimensional parameter space of the minimal supersymmetric standard model assuming universal boundary conditions on the supersymmetry breaking terms. Simultaneous variations of m{sub 0}, A{sub 0}, M{sub 1/2}, tan{beta}, m{sub t}, m{sub b} and {alpha}{sub s}(M{sub Z}) are applied using a Markov chain Monte Carlo algorithm. We use measurements of b{yields}s{gamma}, (g2){sub {mu}} and {omega}{sub DM}h{sup 2} in order to constrain the model. We present likelihood distributions for some of the sparticle masses, for the branching ratio of B{sub s}{sup 0}{yields}{mu}{sup +}{mu}{sup } and for m{sub {tau}}{sub tilde}m{sub {chi}{sub 1}{sup 0}}. An upper limit of 2x10{sup 8} on this branching ratio might be achieved at the Tevatron, and would rule out 29% of the currently allowed likelihood. If one allows for nonthermalneutralino components of dark matter, this fraction becomes 35%. The mass ordering allows the important cascade decay qtilde{sub L}{yields}{chi}{sub 2}{sup 0}{yields}ltilde{sub R}{yields}{chi}{sub 1}{sup 0} with a likelihood of 24{+}4%. The stopcoannihilation region is highly disfavored, whereas the light Higgs region is marginally disfavored.},
doi = {10.1103/PhysRevD.73.015013},
journal = {Physical Review. D, Particles Fields},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}

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