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Global Existence of Solutions for the Viscoelastic Kirchhoff Equation with Logarithmic Source Terms
Complexity, Volume 2020, Issue 1, 2020., 2020 In this paper, a nonlinear viscoelastic Kirchhoff equation in a bounded domain with a time‐varying delay term and logarithmic nonlinearity in the weakly nonlinear internal feedback is considered, where the global and local existence of solutions in suitable Sobolev spaces by means of the energy method combined with Faedo‐Galerkin procedure is proved ...
Nadia Mezouar +3 more
wiley +1 more source
Freeze-in dark matter via lepton portal: Hubble tension and stellar cooling
Journal of High Energy Physics, 2023 We propose a new freeze-in dark matter candidate which feebly couples to the standard model charged leptons. The feeble interactions allow it (i) to freeze-in from the Standard Model thermal bath with its relic density being either a fraction or the ...
Zixuan Xu +3 more
doaj +1 more source
Scalar field couplings to quadratic curvature and decay into gravitons
Journal of High Energy Physics, 2022 Any field, even if it lives in a completely hidden sector, interacts with the visible sector at least via the gravitational interaction. In this paper, we show that a scalar field in such a hidden sector generically couples to the quadratic curvature via
Yohei Ema +2 more
doaj +1 more source
Two Notions of Naturalness [PDF]
, 2018 My aim in this paper is twofold: (i) to distinguish two notions of naturalness employed in BSM physics and (ii) to argue that recognizing this distinction has methodological consequences.
Williams, Porter
core +2 more sources
Phase information in cosmological collider signals
Journal of High Energy Physics, 2022 Massive particles produced during the cosmic inflation can imprint in the primordial non-Gaussianities as characteristic oscillating functions of various momentum ratios, known as cosmological collider signals.
Zhehan Qin, Zhong-Zhi Xianyu
doaj +1 more source
Slow-roll inflation in Palatini F(R) gravity
Journal of High Energy Physics, 2022 We study single field slow-roll inflation in the presence of F(R) gravity in the Palatini formulation. In contrast to metric F(R), when rewritten in terms of an auxiliary field and moved to the Einstein frame, Palatini F(R) does not develop a new ...
Christian Dioguardi +2 more
doaj +1 more source
The future of particle physics [PDF]
, 2006 I review the prospects for future progress in accelerator-based particle physicsComment: Opening talk at the 10th Pisa meeting on advanced detectors, La Biodola, May 22-27 ...
Mangano, Michelangelo
core +3 more sources
Cosmological phase transitions in composite Higgs models
Journal of High Energy Physics, 2023 We investigate cosmological phase transitions in various composite Higgs models consisting of four-dimensional asymptotically-free gauge field theories. Each model may lead to a confinement-deconfinement transition and a phase transition associated with ...
Kohei Fujikura +3 more
doaj +1 more source
Non-linear stability of α′-corrected Friedmann equations
Journal of High Energy Physics, 2023 We study the non-linear stability of fixed-point solutions to the α′-exact equations from O(d, d) invariant cosmology, with and without matter perturbations.
Heliudson Bernardo +2 more
doaj +1 more source
Moduli inflation from modular flavor symmetries
Journal of High Energy Physics, 2023 We study slow-roll inflation model controlled by the modular flavor symmetry. In the model, the modulus field plays a role of inflaton and the introduction of the stabilizer field coupled to a modular form in the superpotential produces the inflaton ...
Yoshihiko Abe +4 more
doaj +1 more source