Results 11 to 20 of about 85,457 (218)

New physics explanations of a μ in light of the FNAL muon g − 2 measurement

Journal of High Energy Physics, 2021
The Fermilab Muon g −2 experiment recently reported its first measurement of the anomalous magnetic moment a μ FNAL $$ {a}_{\mu}^{\mathrm{FNAL}} $$ , which is in full agreement with the previous BNL measurement and pushes the world average deviation ∆ a ...
Peter Athron, Csaba Balázs, Douglas H. J. Jacob, Wojciech Kotlarski, Dominik Stöckinger, Hyejung Stöckinger-Kim   +5 more
doaj   +1 more source

Z(2)-Singlino Dark Matter in a Portal-Like Extension of the Minimal Supersymmetric Standard Model. [PDF]

, 2008
We propose a Z2-stabilized singlino () as a dark matter candidate in extended and R-parity violating versions of the supersymmetric standard model. interacts with visible matter via a heavy messenger field S, which results in a supersymmetric version of ...
Belanger G, Buchmuller W, Cerdeno D G, Hugonie C, John McDonald, Lee H S, Lopez Honorez L, Ma E, March-Russell J West S M Cumberbatch D Hooper D, McDonald J, McDonald J Sahu N, Narendra Sahu, Patt B Wilczek F, Sung Cheon H Kang S K Kim C S, Yao W M   +14 more
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Renormalization of the Minimal Supersymmetric Standard Model [PDF]

, 2002
The renormalization of the Minimal Supersymmetric Standard Model (MSSM) is presented. We describe symmetry identities that constitute a framework in which the MSSM is completely characterized and renormalizability can be proven.
Capper, Chankowski, Christian Rupp, Dabelstein, Dominik Stöckinger, Elisabeth Kraus, Flume, Hollik, Hollik, Hollik, Hollik, Klaus Sibold, Kraus, Kraus, Kraus, Kraus, Kraus, Kraus, Kraus, Maggiore, Maggiore, Markus Roth, Wolfgang Hollik   +22 more
core   +8 more sources

Impact of an extra gauge interaction on naturalness of supersymmetry

Journal of High Energy Physics, 2018
It is pointed out that in supersymmetric models with a new gauge symmetry under which the Higgs is charged, the fine-tuning of the electroweak symmetry breaking is relaxed due to suppression of the top Yukawa coupling at higher scales by a new large ...
Marcin Badziak, Keisuke Harigaya
doaj   +1 more source

Leptonic CP Violation in Supersymmetric Standard Model [PDF]

, 1994
We point out the possibility of spontaneous and hard CP-violation in the scalar potential of R-parity broken supersymmetric Standard Model. The existence of spontaneous CP-violation depends crucially on the R-parity breaking terms in the superpotential ...
A. Acker, A. G. Cohen, A. Nelson, A. Santamaria, Anjan S. Joshipura, B. Campbell, B. Campbell, C. S. Aulakh, D. E. Brahm, D. Tommasini, E. Kh. Akhmedov, E. Roulet, G. G. Ross, G. Giacommeli, H. Dreiner, H. E. Haber, H. Goldberg, I. Lee, J. C. Romao, J. C. Romao, J. Ellis, J. W. F. Valle, K. Enqvist, L. Hall, L. Wolfenstein, M. Drees, M. Fukugita, Marek Nowakowski, N. Sakai, P. I. Krastev, R. Barbieri, R. M. Godbole, S. L. Glashow, S. M. Bilenky, S. P. Mikheyev, S. Weinberg, V. Barger, W. Fishler, X. Tata   +38 more
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Indirect probe of electroweakly interacting particles at the high-luminosity Large Hadron Collider

Journal of High Energy Physics, 2018
Many extensions of the standard model (SM) involve new massive particles charged under the electroweak gauge symmetry. The electroweakly interacting new particles affect various SM processes through radiative corrections.
Shigeki Matsumoto, Satoshi Shirai, Michihisa Takeuchi   +2 more
doaj   +1 more source

Displaced vertex signatures of a pseudo-Goldstone sterile neutrino

Journal of High Energy Physics, 2021
Low-scale models of neutrino mass generation often feature sterile neutrinos with masses in the GeV-TeV range, which can be produced at colliders through their mixing with the Standard Model neutrinos.
Stéphane Lavignac, Anibal D. Medina
doaj   +1 more source

Minimal non-abelian supersymmetric Twin Higgs

Journal of High Energy Physics, 2017
We propose a minimal supersymmetric Twin Higgs model that can accommodate tuning of the electroweak scale for heavy stops better than 10% with high mediation scales of supersymmetry breaking.
Marcin Badziak, Keisuke Harigaya
doaj   +1 more source

Supersymmetric Higgs singlet effects on FCNC observables [PDF]

, 2008
Higgs singlet superfields, usually present in extensions of the Minimal Supersymmetric Standard Model (MSSM) which address the $\mu$-problem, such as the Next-to-Minimal Supersymmetric Standard Model (NMSSM) and the Minimal Nonminimal Supersymmetric ...
Deog Ki Hong, Pyungwon Ko, Robert N. Hodgkinson   +2 more
core   +1 more source

How heavy can neutralino dark matter be?

Journal of High Energy Physics, 2019
What is the upper limit of the mass of the neutralino dark matter whose thermal relic is consistent with the observation? If the neutralino dark matter and colored sparticles are extremely degenerated in mass, with a mass difference less than the QCD ...
Hajime Fukuda, Feng Luo, Satoshi Shirai
doaj   +1 more source