Results 11 to 20 of about 2,417 (206)
Axionic electroweak baryogenesis
Physics Letters B, 2019 An axion can make the electroweak phase transition strongly first-order as required for electroweak baryogenesis even if it is weakly coupled to the Higgs sector.
Kwang Sik Jeong +2 more
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ν electroweak baryogenesis [PDF]
Journal of High Energy Physics, 2020 We investigate if the CP violation necessary for successful electroweak baryo- genesis may be sourced by the neutrino Yukawa couplings. In particular, we consider an electroweak scale Seesaw realization with sizable Yukawas where the new neutrino ...
E. Fernández-Martínez +3 more
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Journal of Cosmology and Astroparticle Physics, 2021 26 pages, 8 figures, Figure 8 replaced, included comments on supersymmetric and slow-roll inflation scenarios, version matched with ...
Wu, Yi-Peng, Petraki, Kalliopi
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Gaugino portal baryogenesis [PDF]
Journal of High Energy Physics, 2019 We study baryogenesis via a gaugino portal, the supersymmetric counterpart to the widely studied kinetic mixing portal, to a hidden sector. CP and baryon number violating decays of a hidden sector gaugino into the visible sector can produce the observed ...
Aaron Pierce, Bibhushan Shakya
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Postsphaleron Baryogenesis [PDF]
Physical Review Letters, 2006 We present a new mechanism for generating the baryon asymmetry of the universe directly in the decay of a singlet scalar field $S_r$ with a weak scale mass and a high dimensional baryon number violating coupling. Unlike most currently popular models, this mechanism, which becomes effective after the electroweak phase transition, does not rely on the ...
Babu, K. S., Mohapatra, R. N., Nasri, S.
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Physical Review Letters, 2004 4 pages, 4 figures. The version to be published in Physical Review Letters. Contains significant changes, eg.
Garbrecht, Bjorn +2 more
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Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 In this paper, we have investigated the density perturbations and cosmological evolution in the FLRW universe in the presence of a cosmic magnetic field, which may be assumed to mimic primordial magnetic fields. Such magnetic fields have sufficient strength to influence galaxy formation and cluster dynamics, thereby leaving an imprint on the CMB ...
Samarjit Chakraborty +2 more
wiley +1 more source
Constraint on the Higgs‐Dilaton Potential via Warm Inflation in Two‐Time Physics
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 Within the SP(2, R) symmetry, the two‐time model (2T model) has six dimensions with two dimensions of time and the dilaton field that can be identified as inflaton in a warm inflation scenario with potential of the form ~ϕ4. From that consideration, we derive the range of parameters for the Higgs‐Dilaton potential, the coupling constant between Higgs ...
Vo Quoc Phong +2 more
wiley +1 more source
On Lorentz Invariant Complex Scalar Fields
Advances in High Energy Physics, Volume 2022, Issue 1, 2022., 2022 We obtain a Lorentz covariant wave equation whose complex wave function transforms under a Lorentz boost according to the following rule, Ψ(x)⟶e(i/ℏ)f(x)Ψ(x). We show that the spacetime‐dependent phase f(x) is the most natural relativistic extension of the phase associated with the transformation rule for the nonrelativistic Schrödinger wave function ...
Gustavo Rigolin +1 more
wiley +1 more source