Predictions for supersymmetric particle masses using indirect experimental and cosmological constraints

被引：64
作者：
Buchmueller, O. [1 ]
Cavanaugh, R. [2 ,3 ]
De Roeck, A. [1 ,4 ]
Ellis, J. R. [1 ]
Flaecher, H. [1 ]
Heinemeyer, S. [5 ]
Isidori, G. [6 ,7 ]
Olive, K. A. [8 ]
Paradisi, P.
Ronga, F. J. [9 ]
Weiglein, G. [10 ]
机构：
[1] CERN, CH-1211 Geneva 23, Switzerland
[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[3] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[4] Univ Antwerp, B-2610 Antwerp, Belgium
[5] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain
[6] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[7] Scuola Normale Super Pisa, I-56126 Pisa, Italy
[8] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA
[9] ETH, Inst Particle Phys, D-85748 Garching, Germany
[10] Univ Durham, IPPP, Durham DH1 3LE, England
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2008年 / 09期
关键词：
supersymmetric standard model; GUT; B-physics; electromagnetic processes and properties;
D O I：
10.1088/1126-6708/2008/09/117
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In view of the imminent start of the LHC experimental programme, we use the available indirect experimental and cosmological information to estimate the likely range of parameters of the constrained minimal supersymmetric extension of the Standard Model (CMSSM), using a Markov-chain Monte Carlo (MCMC) technique to sample the parameter space. The 95% confidence-level area in the (m0, m1/2) plane of the CMSSM lies largely within the region that could be explored with 1 fb(-1) of integrated luminosity at 14TeV, and much of the 68% confidence-level area lies within the region that could be explored with 50 pb(-1) of integrated luminosity at 10TeV. A same-sign dilepton signal could well be visible in most of the 68% confidence-level area with 1 fb(-1) of integrated luminosity at 14TeV. We discuss the sensitivities of the preferred ranges to variations in the most relevant indirect experimental and cosmological constraints and also to deviations from the universality of the supersymmetry-breaking contributions to the masses of the Higgs bosons.
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页数：24
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