Constrained supersymmetry after two years of LHC data: a global view with Fittino
Please always quote using this URN: urn:nbn:de:bvb:20-opus-129573
- We perform global fits to the parameters of the Constrained Minimal Super-symmetric Standard Model (CMSSM) and to a variant with non-universal Higgs masses (NUHM1). In addition to constraints from low-energy precision observables and the cosmological dark matter density, we take into account the LHC exclusions from searches in jets plus missing transverse energy signatures with about 5 fb\(^{−1}\) of integrated luminosity. We also include the most recent upper bound on the branching ratio B\(_s\) → μμ from LHCb. Furthermore, constraints fromWe perform global fits to the parameters of the Constrained Minimal Super-symmetric Standard Model (CMSSM) and to a variant with non-universal Higgs masses (NUHM1). In addition to constraints from low-energy precision observables and the cosmological dark matter density, we take into account the LHC exclusions from searches in jets plus missing transverse energy signatures with about 5 fb\(^{−1}\) of integrated luminosity. We also include the most recent upper bound on the branching ratio B\(_s\) → μμ from LHCb. Furthermore, constraints from and implications for direct and indirect dark matter searches are discussed. The best fit of the CMSSM prefers a light Higgs boson just above the experimentally excluded mass. We find that the description of the low-energy observables, (g − 2)\(_μ\) in particular, and the non-observation of SUSY at the LHC become more and more incompatible within the CMSSM. A potential SM-like Higgs boson with mass around 126 GeV can barely be accommodated. Values for B(B\(_s\)→μμ) just around the Standard Model prediction are naturally expected in the best fit region. The most-preferred region is not yet affected by limits on direct WIMP searches, but the next generation of experiments will probe this region. Finally, we discuss implications from fine-tuning for the best fit regions.…
Author: | Philip Bechtle, Torsten Bringmann, Klaus Desch, Herbi Dreiner, Matthias Hamer, Carsten Hensel, Michael Krämer, Nelly Nguyen, Werner Porod, Xavier Prudent, Björn Sarrazin, Mathias Uhlenbrock, Peter Wienemann |
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URN: | urn:nbn:de:bvb:20-opus-129573 |
Document Type: | Journal article |
Faculties: | Fakultät für Physik und Astronomie / Institut für Theoretische Physik und Astrophysik |
Language: | English |
Parent Title (English): | Journal of High Energy Physics |
Year of Completion: | 2012 |
Volume: | 06 |
Issue: | 098 |
Source: | Journal of High Energy Physics 06 (2012) 098. DOI:10.1007/JHEP06(2012)098 |
DOI: | https://doi.org/10.1007/JHEP06(2012)098 |
ArXiv Id: | http://arxiv.org/abs/1204.4199 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 539 Moderne Physik |
Tag: | supersymmetry phenomenology |
Release Date: | 2016/11/24 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung |