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http://hdl.handle.net/2445/131798
Title: | Natural supersymmetry and kaon mixing in view of recent results from lattice QCD |
Author: | Mescia, Federico Virto, Javier |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 1-Nov-2012 |
Publisher: | American Physical Society |
Abstract: | Lattice results are available for Δ S = 2 matrix elements for the first time in full QCD, which improve considerably the status of hadronic uncertainties in K − ¯¯¯¯ K mixing with respect to earlier phenomenological studies. Using an average of the ETMC and RBC-UKQCD results, we analyze ϵ K in natural supersymmetry (SUSY). This scenario arises as a consistent BSM framework after the latest results from the LHC. The analysis is improved with respect to previous studies including next-to-leading order matching conditions of order α 3 s . We derive new bounds for SUSY mass insertions in the scenario with a light third generation and study the implications for squark and gluino masses, compared with direct searches at the LHC. Assuming natural values for the flavor-violating SUSY couplings of both chiralities, we find that the sbottom must be heavier than 3 TeV for a gluino mass up to 10 TeV. In this scenario no natural values for squark and gluino masses can satisfy the flavor bounds. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.86.095004 |
It is part of: | Physical Review D, 2012, vol. 86, num. 9, p. 095004 |
URI: | http://hdl.handle.net/2445/131798 |
Related resource: | https://doi.org/10.1103/PhysRevD.86.095004 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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