Results 71 to 80 of about 147,304 (226)

Abelian Hidden Sectors at a GeV [PDF]

, 2009
We discuss mechanisms for naturally generating GeV-scale hidden sectors in the context of weak-scale supersymmetry. Such low mass scales can arise when hidden sectors are more weakly coupled to supersymmetry breaking than the visible sector, as happens ...
A. Ibarra, A. Katz, B. Batell, B. Batell, B.C. Allanach, C. Beasley, C. Beasley, C. Cheung, C. Savage, C. Savage, D. Suematsu, D.P. Finkbeiner, D.P. Finkbeiner, D.S.M. Alves, David E Morrissey, David Poland, E.J. Chun, F. Petriello, For reviews, G. Bertone, G. Dobler, G. Gelmini, G. Perez, G. Weidenspointner ., G.F. Giudice, J. March-Russell, J. Mardon, J. Marsano, J.J. Heckman, J.L. Feng, Kathryn M Zurek, L. Bergstrom, M. Baumgart, M. Fairbairn, M. Ibe, M. Pospelov, M. Reece, M. Schmaltz, M.J. Strassler, N. Arkani-Hamed, P. Meade, P. Meade, P. Ullio, PPB-BETS collaboration, R. Essig, S. Andreas, S. Chang, S.A. Abel, T. Han, Y. Bai, Y. Cui, Y.G. Kim, Z. Chacko   +52 more
core   +4 more sources

Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry, and Complex Multiplication

Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi, Masaki Okada, Taizan Watari   +2 more
wiley   +1 more source

Flavor in SU(5)$SU(5)$ Finite Grand Unified Models

Fortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract Four SU(5)N=1$SU(5) \nobreakspace N=1$ supersymmetric models which exhibit S3$S_3$ and/or ZN$Z_N$ symmetries are studied, that are finite to two or all loops, and their corresponding mass matrices. The first is an all‐loop finite model based on an S3×Z3×Z2$S_3\times Z_3\times Z_2$ flavor symmetry, which leads to phenomenologically nonviable ...
Luis Odín Estrada Ramos, Myriam Mondragón, Gregory Patellis, George Zoupanos   +3 more
wiley   +1 more source

Lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model

Journal of High Energy Physics, 2023
We study the lightest Higgs boson decays h → MZ in the μ from ν supersymmetric standard model (μνSSM), where M is a vector meson (ρ, ω, ϕ, J/Ψ, Υ). Compared to the minimal supersymmetric standard model (MSSM), the μνSSM introduces three right-handed ...
Chang-Xin Liu, Hai-Bin Zhang, Jin-Lei Yang, Shu-Min Zhao, Tai-Fu Feng   +4 more
doaj   +1 more source

Species Scale and Primordial Gravitational Waves

Fortschritte der Physik, Volume 72, Issue 6, June 2024.
Abstract The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate |Λs′/Λs|$|\Lambda ^{\prime }_s/\Lambda _s|$ of the species scale ...
Marco Scalisi
wiley   +1 more source

Muon g − 2 anomaly in anomaly mediation

Journal of High Energy Physics, 2021
The long-standing muon g − 2 anomaly has been confirmed recently at the Fermilab. The combined discrepancy from Fermilab and Brookhaven results shows a difference from the theory at a significance of 4.2 σ. In addition, the LHC has updated the lower mass
Wen Yin
doaj   +1 more source

Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity

Fortschritte der Physik, Volume 72, Issue 4, April 2024.
Abstract Symmergent gravity is an emergent gravity model with an R+R2$R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of R2$R^2$). With variable scalar
Beyhan Puliçe, Reggie C. Pantig, Ali Övgün, Durmuş Demir   +3 more
wiley   +1 more source

Detection prospects of light pseudoscalar Higgs boson at the LHC

Journal of High Energy Physics, 2017
The discovery potential of light pseudo scalar Higgs boson for the mass range 10-60 GeV is explored. In the context of the next-to-minimal supersymmetric standard (NMSSM) model, the branching fraction of light pseudo scalar Higgs boson decaying to a pair
Monoranjan Guchait, Aravind H. Vijay, Jacky Kumar   +2 more
doaj   +1 more source

Proton decay: flipped vs. unflipped SU(5)

Journal of High Energy Physics, 2020
We analyze nucleon decay modes in a no-scale supersymmetric flipped SU(5) GUT model, and contrast them with the predictions for proton decays via dimension-6 operators in a standard unflipped supersymmetric SU(5) GUT model.
John Ellis, Marcos A. G. Garcia, Natsumi Nagata, Dimitri V. Nanopoulos, Keith A. Olive   +4 more
doaj   +1 more source

Phenomenological Aspects of F-theory

, 1997
Stabilizing a heterotic string vacuum with a large expectation value of the dilaton and simultaneously breaking low-energy supersymmetry is a long-standing problem of string phenomenology. We reconsider these issues in light of the recent developments in
Kaplunovsky, Vadim S., Louis, Jan
core   +1 more source