Likelihood analysis of the pMSSM11 in light of LHC 13-TeV data.
- Bagnaschi E 1DESY, Notkestraße 85, 22607 Hamburg, Germany.
- Sakurai K 2Faculty of Physics, Institute of Theoretical Physics, University of Warsaw, ul. Pasteura 5, 02-093 Warsaw, Poland.
- Borsato M 3Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Buchmueller O 4High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK.
- Citron M 4High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK.
- Costa JC 4High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK.
- De Roeck A 5Experimental Physics Department, CERN, 1211 Geneva 23, Switzerland.
- Dolan MJ 7ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, University of Melbourne, 3010 Melbourne, Australia.
- Ellis JR 8Theoretical Particle Physics and Cosmology Group, Department of Physics, King's College London, London, WC2R 2LS UK.
- Flächer H 11H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL UK.
- Heinemeyer S 12Campus of International Excellence UAM+CSIC, Cantoblanco, 28049 Madrid, Spain.
- Lucio M 3Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Martínez Santos D 3Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Olive KA 15William I. Fine Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455 USA.
- Richards A 4High Energy Physics Group, Blackett Laboratory, Imperial College, Prince Consort Road, London, SW7 2AZ UK.
- Spanos VC 16Section of Nuclear and Particle Physics, Department of Physics, National and Kapodistrian University of Athens, 15784 Athens, Greece.
- Suárez Fernández I 3Instituto Galego de Física de Altas Enerxías, Universidade de Santiago de Compostela, Santiago de Compostela, Spain.
- Weiglein G 1DESY, Notkestraße 85, 22607 Hamburg, Germany.
- 2019-07-02
Published in:
- The European physical journal. C, Particles and fields. - 2018
English
We use MasterCode to perform a frequentist analysis of the constraints on a phenomenological MSSM model with 11 parameters, the pMSSM11, including constraints from /fb of LHC data at 13 TeV and PICO, XENON1T and PandaX-II searches for dark matter scattering, as well as previous accelerator and astrophysical measurements, presenting fits both with and without the constraint. The pMSSM11 is specified by the following parameters: 3 gaugino masses , a common mass for the first-and second-generation squarks and a distinct third-generation squark mass , a common mass for the first-and second-generation sleptons and a distinct third-generation slepton mass , a common trilinear mixing parameter A, the Higgs mixing parameter μ , the pseudoscalar Higgs mass and . In the fit including , a Bino-like is preferred, whereas a Higgsino-like is mildly favoured when the constraint is dropped. We identify the mechanisms that operate in different regions of the pMSSM11 parameter space to bring the relic density of the lightest neutralino, , into the range indicated by cosmological data. In the fit including , coannihilations with and the Wino-like or with nearly-degenerate first- and second-generation sleptons are active, whereas coannihilations with the and the Higgsino-like or with first- and second-generation squarks may be important when the constraint is dropped. In the two cases, we present functions in two-dimensional mass planes as well as their one-dimensional profile projections and best-fit spectra. Prospects remain for discovering strongly-interacting sparticles at the LHC, in both the scenarios with and without the constraint, as well as for discovering electroweakly-interacting sparticles at a future linear collider such as the ILC or CLIC.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.1140/epjc/s10052-018-5697-0
- PMID 31258409
- Persistent URL
- https://sonar.ch/global/documents/70035
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