TY - JOUR
T1 - Status of CMSSM in light of current LHC Run-2 and LUX data
AU - Han, Chengcheng
AU - Hikasa, Ken ichi
AU - Wu, Lei
AU - Yang, Jin Min
AU - Zhang, Yang
N1 - Funding Information:
This work is partly supported by the Australian Research Council, by the National Natural Science Foundation of China (NNSFC) under grant Nos. 11675242, by World Premier International Research Center Initiative (WPI Initiative) MEXT of Japan by the CAS Center for Excellence in Particle Physics (CCEPP) and by the CAS Key Research Program of Frontier Sciences.
Publisher Copyright:
© 2017
PY - 2017/6/10
Y1 - 2017/6/10
N2 - Motivated by the latest results of the LHC Run-2 and LUX experiments, we examine the status of the constrained minimal supersymmetric standard model by performing a global fit. We construct a likelihood function including the electroweak precision observables, B-physics measurements, LHC Run-1 and -2 data of SUSY direct searches, Planck observation of the dark matter relic density and the combined LUX Run-3 and -4 detection limits. Based on the profile likelihood functions of 1 billion samples, we obtain the following observations: (i) The stau coannihilation region has been mostly excluded by the latest LHC Run-2 data; (ii) The focus point region has been largely covered by the LUX-2016 limits while the A-funnel region has been severely restricted by flavor observables like Bs→μ+μ−. The remaining parts of both regions will be totally covered by the future LZ dark matter experiment; (iii) Part of the stop coannihilation region may be detected with higher integrated luminosity LHC; (iv) The StauC&AF hybrid region still survives considering both LHC and dark matter experiments; (v) The masses of the stop, the lightest neutralino and the gluino have been pushed up to 363 GeV, 328 GeV and 1818 GeV, respectively.
AB - Motivated by the latest results of the LHC Run-2 and LUX experiments, we examine the status of the constrained minimal supersymmetric standard model by performing a global fit. We construct a likelihood function including the electroweak precision observables, B-physics measurements, LHC Run-1 and -2 data of SUSY direct searches, Planck observation of the dark matter relic density and the combined LUX Run-3 and -4 detection limits. Based on the profile likelihood functions of 1 billion samples, we obtain the following observations: (i) The stau coannihilation region has been mostly excluded by the latest LHC Run-2 data; (ii) The focus point region has been largely covered by the LUX-2016 limits while the A-funnel region has been severely restricted by flavor observables like Bs→μ+μ−. The remaining parts of both regions will be totally covered by the future LZ dark matter experiment; (iii) Part of the stop coannihilation region may be detected with higher integrated luminosity LHC; (iv) The StauC&AF hybrid region still survives considering both LHC and dark matter experiments; (v) The masses of the stop, the lightest neutralino and the gluino have been pushed up to 363 GeV, 328 GeV and 1818 GeV, respectively.
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U2 - 10.1016/j.physletb.2017.04.026
DO - 10.1016/j.physletb.2017.04.026
M3 - Article
AN - SCOPUS:85018727914
SN - 0370-2693
VL - 769
SP - 470
EP - 476
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -