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Precision early universe thermodynamics made simple: Neff and neutrino decoupling in the Standard Model and beyond [PDF]
, 2020 Precision measurements of the number of effective relativistic neutrino species and the primordial element abundances require accurate theoretical predictions for early Universe observables in the Standard Model and beyond.
Miguel Escudero Abenza
semanticscholar +2 more sources
Hunting wino and higgsino dark matter at the muon collider with disappearing tracks
Journal of High Energy Physics, 2021 We study the capabilities of a muon collider experiment to detect disappearing tracks originating when a heavy and electrically charged long-lived particle decays via X + → Y + Z 0, where X + and Z 0 are two almost mass degenerate new states and Y + is a
Rodolfo Capdevilla +3 more
doaj +1 more source
STANDARD MODEL AND BEYOND [PDF]
Non-Accelerator Astroparticle Physics, 2005 20 pages, LaTeX, 7 eps figures, uses ws-procs9x6.cls, lecture given by A. Bartl at the VII School on Non-Accelerator Astroparticle Physics, Trieste, Italy, July 26 - August 6 ...
S. Hesselbach, A. Bartl
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A long-lived stop with freeze-in and freeze-out dark matter in the hidden sector
Journal of High Energy Physics, 2020 In extended supersymmetric models with a hidden sector the lightest R-parity odd particle can reside in the hidden sector and act as dark matter. We consider the case when the hidden sector has ultraweak interactions with the visible sector.
Amin Aboubrahim, Wan-Zhe Feng, Pran Nath
doaj +1 more source
Searching for physics beyond the Standard Model in an off-axis DUNE near detector [PDF]
Journal of High Energy Physics, 2021 Next generation neutrino oscillation experiments like DUNE and T2HK are multi-purpose observatories, with a rich physics program beyond oscillation measurements.
M. Breitbach +4 more
semanticscholar +1 more source
Searching for the Higgsino-Bino sector at the LHC
Journal of High Energy Physics, 2020 We study the search for electroweakinos at the 13 TeV LHC in the case of heavy scalar superpartners. We consider both the direct production mode and the one associated with the decay of heavy Higgs bosons, and concentrate on the case of light Higgsinos ...
Jia Liu +3 more
doaj +1 more source
Lepton flavor violating decays τ → Pl in the U(1) X SSM model
Journal of High Energy Physics, 2022 U(1) X SSM is the extension of the minimal supersymmetric standard model (MSSM) and its local gauge group is SU(3) C × SU(2) L × U(1) Y × U(1) X . To obtain this model, three singlet new Higgs superfields and right-handed neutrinos are added to MSSM.
Tong-Tong Wang +6 more
doaj +1 more source
BEYOND THE STANDARD MODEL [PDF]
High Energy Physics, 2007 Review of recent developments in attempts to go beyond the Standard Model is given. We concentrate on three main unresolved problems: mechanism of electroweak symmetry breaking, expected new physics at the TeV scale (mainly SUSY) and the origin of the Dark matter.
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The standard model and beyond [PDF]
Nuclear Physics B - Proceedings Supplements, 1998 Content 1. Why we do Believe in the Standard Model 2. Why we do not Believe in the Standard Model 2.1Conceptual Problems 2.2Hints from Experiment --2.2.1 Unification of Couplings --2.2.2 Dark Matter --2.2.3 Baryogenesis --2.2.4 Neutrino Masses --2.2.5 Ultra High Energy Cosmic Rays 3 ...
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Beyond the Standard Model* [PDF]
Annals of the New York Academy of Sciences, 1993 The standard model of particle physics is marvelously successful. However, it is obviously not a complete or final theory. I shall argue here that the structure of the standard model gives some quite concrete, compelling hints regarding what lies beyond.
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