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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 544993.0, MPI für Physik / MPI für Physik
The Dark Side of mSUGRA
Authors:Allanach, B. C.; Lester, C. G.; Weber, A. M.
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Journal of High Energy Physics
Journal Abbrev.:JHEP
Issue / Number:0612
Start Page:065
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We study the mu<0 branch of the minimal supergravity ansatz of the minimal supersymmetric standard model. The extent to which mu<0 is disfavoured compared to mu>0 in global fits is calculated with Markov Chain Monte Carlo methods and bridge sampling. The fits include state-of-the-art two-loop MSSM contributions to the electroweak observables M_W and sin^2 theta_w^l, as well as the anomalous magnetic moment of the muon (g-2)_mu, the relic density of dark matter and other relevant indirect observables. mu<0 is only marginally disfavoured in global fits and should be considered in mSUGRA analyses. We estimate that the ratio of probabilities is P(mu<0)/P(mu>0)=0.07-0.16.
Classification / Thesaurus:Phenomenology of High Energy Physics
Comment of the Author/Creator:29 pages, 17 figures, revised version fixes typos and adds references
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2006-122
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/hep-ph/0609295
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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