Search for natural and split supersymmetry in proton-proton collisions at √s=13 TeV in final states with jets and missing transverse momentum
A search for supersymmetry (SUSY) is performed in final states comprising one or more jets and missing transverse momentum using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data were recorded with the CMS detector at the CERN LHC in 2016 and correspond to an integ...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English English English |
| Published: |
Springer Nature
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/65288/ http://irep.iium.edu.my/65288/ http://irep.iium.edu.my/65288/ http://irep.iium.edu.my/65288/1/65288_Search%20for%20natural%20and%20split%20supersymmetry_article.pdf http://irep.iium.edu.my/65288/2/65288_Search%20for%20natural%20and%20split%20supersymmetry_scopus.pdf http://irep.iium.edu.my/65288/13/65288%20Search%20for%20natural%20and%20split%20supersymmetry%20in%20proton-proton%20collisions%20at%20%E2%88%9As%3D13%20TeV%20in%20final%20states%20with%20jets%20and%20missing%20transverse%20momentum_wos.pdf |
| Summary: | A search for supersymmetry (SUSY) is performed in final states comprising one
or more jets and missing transverse momentum using data from proton-proton collisions at
a centre-of-mass energy of 13 TeV. The data were recorded with the CMS detector at the
CERN LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1
. The number
of signal events is found to agree with the expected background yields from standard model
processes. The results are interpreted in the context of simplified models of SUSY that
assume the production of gluino or squark pairs and their prompt decay to quarks and the
lightest neutralino. The masses of bottom, top, and mass-degenerate light-flavour squarks
are probed up to 1050, 1000, and 1325 GeV, respectively. The gluino mass is probed up to
1900, 1650, and 1650 GeV when the gluino decays via virtual states of the aforementioned
squarks. The strongest mass bounds on the neutralinos from gluino and squark decays are
1150 and 575 GeV, respectively. The search also provides sensitivity to simplified models
inspired by split SUSY that involve the production and decay of long-lived gluinos. Values
of the proper decay length cτ0 from 10−3
to 105 mm are considered, as well as a metastable
gluino scenario. Gluino masses up to 1750 and 900 GeV are probed for cτ0 = 1 mm and for
the metastable state, respectively. The sensitivity is moderately dependent on model assumptions
for cτ0 & 1 m. The search provides coverage of the cτ0 parameter space for models
involving long-lived gluinos that is complementary to existing techniques at the LHC. |
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