期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP07(2015)066
关键词
Supersymmetry Phenomenology; Monte Carlo Simulations
资金
- Science Technology and Facilities Council (STFC) [ST/L000504/1, ST/L000296/1]
- Bundesministerium fur Bildung und Forschung (BMBF) [05H12WWE]
- Science and Technology Facilities Council [ST/L000296/1, ST/L000504/1] Funding Source: researchfish
- STFC [ST/L000504/1, ST/L000296/1] Funding Source: UKRI
We have explored Natural Supersymmetry (NSUSY) scenarios with low values of the mu parameter which are characterised by higgsino-like Dark Matter (DM) and compressed spectra for the lightest MSSM particles, chi(0)(1), chi(0)(2) and chi(+/-)(1). This scenario could be probed via monojet signatures, but as the signal-to-background ratio (S/B) is low we demonstrate that the 8TeV LHC cannot obtain limits on the DM mass beyond those of LEP2. On the other hand, we have found, for the 13TeV run of the LHC, that by optimising kinematical cuts we can bring the S/B ratio up to the 5(3)% level which would allow the exclusion of the DM mass up to 200(250) GeV respectively, significantly extending LEP2 limits. Moreover, we have found that LUX/XENON1T and LHC do play very complementary roles in exploring the parameter space of NSUSY, as the LHC has the capability to access regions where DM is quasi-degenerate with other higgsinos, which are challenging for direct detection experiments.
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