Multi-Dimensional mSUGRA Likelihood Maps
| dc.creator | Allanach, B. C. | |
| dc.creator | Lester, C. G. | |
| dc.date | 2005-07-25 | |
| dc.date | 2007-07-18 | |
| dc.date.accessioned | 2026-07-07T10:29:35Z | |
| dc.date.available | 2026-07-07T10:29:35Z | |
| dc.description | We calculate the likelihood map in the full 7 dimensional parameter space of the minimal supersymmetric standard model (MSSM) assuming universal boundary conditions on the supersymmetry breaking terms. Simultaneous variations of m_0, A_0, M_{1/2}, tan beta, m_t, m_b and alpha_s(M_Z) are applied using a Markov chain Monte Carlo algorithm. We use measurements of b -> s gamma, (g-2)_mu and Omega_{DM} h^2 in order to constrain the model. We present likelihood distributions for some of the sparticle masses, for the branching ratio of B_s^0 -> mu^+ mu^- and for m_{stau}-m_{chi_1^0}. An upper limit of 2.10^{-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 non thermal-neutralino components of dark matter, this fraction becomes 35%. The mass ordering allows the important cascade decay squark_L -> chi_2^0 -> slepton_R -> chi_1^0 with a likelihood of 24+/-4%. The stop coannihilation region is highly disfavoured, whereas the light Higgs region is marginally disfavoured. | |
| dc.description | 19 pages, 9 figures. v3 fixes typo in Eq (3) and explicitly states that the proposal function is assumed to be symmetric | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0507283 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0507283 | |
| dc.identifier | Phys.Rev.D73:015013,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.73.015013 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177854 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Multi-Dimensional mSUGRA Likelihood Maps | |
| dc.type | text |