Results 51 to 60 of about 104,648 (230)
Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
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Baryon decays to purely baryonic final states [PDF]
Scientific Reports, 2019 AbstractThe LHCb collaboration has presented first experimental evidence that spin-carrying matter and antimatter differ. The study looked at four-body decays of the $${{\boldsymbol{\Lambda }}}_{{\boldsymbol{b}}}^{{\bf{0}}}$$ Λ
Y. K. Hsiao +2 more
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Annalen der Physik, Volume 538, Issue 1, January 2026.The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
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Canadian Journal of Physics, 2000 We describe classical orbits and quantum states of a three-particle system, which is weakly chaotic. The quantum energies of the lowest 48 states, which are invariant under permutations, are given both for various approximations and to high accuracy. The quantum mechanical probability distributions are given in a two-dimensional version of the system,
Bukta, D., Karl, G., Nickel, B. G.
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Dynamical Dark Sector: A Joint Two‐Scalar‐Field Model for Dark Matter and Quintessence
Advances in Astronomy, Volume 2026, Issue 1, 2026.The physical nature of dark matter and dark energy remains one of the most pressing questions in modern cosmology. This work presents a phenomenological model where the entire dark sector is described by two minimally coupled scalar fields within general relativity.
Silvio A. Corrêa Junior, Jianguo Yan
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Some Topics in Theoretical High-Energy Physics [PDF]
, 1980 This thesis discusses various aspects of theoretical high-energy physics. The first two sections describe methods for investigating QCD effects in e⁺e⁻ annihilation to hadrons. The third section presents some predictions for various features of QCD jets.
Wolfram, Stephen
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Complementary Probes of the Dimension‐6 Operator via Gravitational Waves and Multi‐Higgs Production
Advances in High Energy Physics, Volume 2026, Issue 1, 2026.We investigate the phenomenological consequences of a dimension‐6 operator H†H3/Λ2, Λ is the effective scale at which new physics takes over, which modifies the scalar potential of the standard model and can induce a strong first‐order electroweak phase transition (SFOEWPT). We estimate the lower limit on the effective scale Λ to be 515 GeV from the di‐
Dilruba Gazi +4 more
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Towards Skyrmion Stars: Large Baryon Number Configurations in the Einstein-Skyrme Model [PDF]
, 2005 The large baryon number sector of the Einstein-Skyrme model has been investigated, as a possible model for baryon stars. Self-gravitating hedgehog skyrmions have been studied previously and the existence of stable sol і tonic stars excluded due to energy
Probert, Gavin Idris
core
Correlation length of the angular mode for an approximate U(1) symmetry during inflation
Physics Letters B, 2023 It is known that a light scalar field obtains fluctuations in the de Sitter inflationary background. Such fluctuations could provide an initial condition for baryogenesis through the Affleck-Dine mechanism, where an approximate U(1)B symmetry is usually ...
Chengcheng Han
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Analytical Description of the Distributions of Primary and Secondary Cosmogenic Particles
Advances in High Energy Physics, Volume 2026, Issue 1, 2026.In this work, we present an analytical description of the energy distributions of primary and secondary cosmogenic particles on Earth in terms of parameters having clear physical meaning. A modified power law is assumed for energy distributions, incorporating terms such as energy loss/decay, which are effective at low energies, and a source term, which
Shvetaank Tripathi +2 more
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