Results 31 to 40 of about 242,972 (318)
Convergent Bayesian global fits of 4D composite Higgs models
Journal of High Energy Physics, 2021 Models in which the Higgs boson is a composite pseudo-Nambu-Goldstone boson offer attractive solutions to the Higgs mass naturalness problem. We consider three such models based on the minimal SO(5) → SO(4) symmetry breaking pattern, and perform ...
Ethan Carragher +6 more
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The European Physical Journal C, 2014 We review here the status of different dark matter candidates in the context of supersymmetric models, in particular the neutralino as a realization of the WIMP-mechanism and the gravitino. We give a summary of the recent bounds in direct and indirect detection and also of the LHC searches relevant for the dark matter question.
Catena, Riccardo, Covi, Laura
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Black hole evaporation beyond the Standard Model of particle physics
Journal of High Energy Physics, 2023 The observation of an evaporating black hole would provide definitive information on the elementary particles present in nature. In particular, it could discover or exclude particles beyond those present in the standard model of particle physics.
Michael J. Baker, Andrea Thamm
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EPJ Web of Conferences, 2016 After the jet break at t ~ 1.4 days, the optical afterglow emission of the long-short burst GRB 060614 can be divided into two components. One is the power-law decaying forward shock afterglow emission.
Jin Zhi-Ping, Fan Yi-Zhong, Wei Da-Ming
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‘Excess’ of primary cosmic ray electrons
Physics Letters B, 2015 With the accurate cosmic ray (CR) electron and positron spectra (denoted as Φe− and Φe+, respectively) measured by AMS-02 Collaboration, the difference between the electron and positron fluxes (i.e., ΔΦ=Φe−−Φe+), dominated by the propagated primary ...
Xiang Li +7 more
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International Journal of Modern Physics A, 2006 More than 90% of matter in the Universe could be composed of heavy particles, which were non-relativistic, or 'cold', when they froze-out from the primordial soup. I will review current searches for these hypothetical particles, both via interactions with nuclei in deep underground detectors, and via the observation of their annihilation products in ...
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Physics Letters B, 2019 The paper brings a novel approach to unification of dark matter and dark energy in terms of a cosmic fluid. A model is introduced in which the cosmic fluid speed of sound squared is defined as a function of its equation of state (EoS) parameter. It is shown how logarithmic part of this function results in dynamical regimes previously not observed in ...
Dalibor Perković, Hrvoje Štefančić
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Constrains on the electric charges of the binary black holes with GWTC-1 events
European Physical Journal C: Particles and Fields, 2021 Testing black hole’s charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary black hole merger events have been formally reported, and these ...
Hai-Tang Wang +5 more
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Journal of High Energy Physics, 2019 Abstract We introduce the gluequark Dark Matter candidate, an accidentally stable bound state made of adjoint fermions and gluons from a new confining gauge force. Such scenario displays an unusual cosmological history where perturbative freeze-out is followed by a non-perturbative re-annihilation period with possible entropy ...
Contino, Roberto +3 more
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Effect of the pion field on the distributions of pressure and shear in the proton
Physics Letters B, 2022 In light of recent experimental progress in determining the pressure and shear distributions in the proton, these quantities are calculated in a model with confined quarks supplemented by the pion field required by chiral symmetry.
Shiryo Owa, A.W. Thomas, X.G. Wang
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