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相关论文: Electroweak phase transition in the scotogenic mod…

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We study the symmetry breaking phenomenon in the standard model during the electroweak phase transition in the presence of a constant hypermagnetic field. We compute the finite temperature effective potential up to the contribution of ring…

高能物理 - 理论 · 物理学 2008-11-26 Angel Sanchez , Alejandro Ayala , Gabriella Piccinelli

The presently observed cosmological baryon asymmetry has been finally determined at the time of the electroweak phase transition, when baryon and lepton number violating interactions fell out of thermal equilibrium. We discuss the…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Buchmuller

We propose a generalization of the Standard Model (SM) by adding two real gaugesinglets S1, S2. The field S1 will improve the strength of the electroweak phase transition (EWPT). Imposing a Z2 symmetry on the field S2 makes this field a…

高能物理 - 唯象学 · 物理学 2015-10-14 A. Tofighi , O. N. Ghodsi , M. Saeedhoseini

The radiative electroweak symmetry breaking, the unification of third-generation Yukawa couplings, and flavor-changing rare decay are investigated in two types of supersymmetric SO(10) scenarios taking into account of the effects of…

高能物理 - 唯象学 · 物理学 2011-01-27 Kenzo Inoue , Kentaro Kojima , Koichi Yoshioka

We investigate the strongly first-order electroweak phase transition using an effective field theoretical approach. The standard effective field theory with finite number truncation of higher dimensional operators fails in the typical…

高能物理 - 唯象学 · 物理学 2022-06-22 Shinya Kanemura , Ryo Nagai , Masanori Tanaka

The primary objective of this work is to investigate the cosmological phase transitions in the early Universe, with a focus on the electroweak phase transition in the Standard Model and its extensions. In the Standard Model, the…

高能物理 - 唯象学 · 物理学 2024-07-02 Apostolos Giovanakis

I review the status of non-perturbative investigations of the finite temperature electroweak phase transition by means of lattice simulations.

高能物理 - 格点 · 物理学 2009-10-28 Karl Jansen

The nonlinear SU(2) electroweak model is used to explain the absence of the right-handed neutrino in weak interactions. Two covariant eigenvalue constraints which affect the transformation lead to two classes of right-handed leptons, and…

高能物理 - 唯象学 · 物理学 2010-09-28 Bill Dalton

The scotogenic neutrino seesaw model is a minimal extension of the standard model with three $\mathbb{Z}_2$-odd right-handed singlet fermions $N$ and one $\mathbb{Z}_2$-odd Higgs doublet $\eta$ that can accommodate the tiny neutrino mass…

高能物理 - 唯象学 · 物理学 2022-12-28 Yi Liao , Xiao-Dong Ma

Recent progress in non-perturbative investigations of the electroweak phase transition is reviewed, with special emphasis on numerical simulations in the four-dimen\-sional SU(2) Higgs model.

高能物理 - 格点 · 物理学 2007-05-23 I. Montvay

The scotogenic model can simultaneously account for the presence of dark matter and the origin of neutrino masses. We assume that the flavor neutrino mass matrix has one zero element and Yukawa matrix elements are real in the scotogenic…

高能物理 - 唯象学 · 物理学 2018-10-24 Teruyuki Kitabayashi

We describe electroweak strings and their ability to carry Chern-Simons number. Certain string configurations, for any $\theta_W$, carry Chern-Simons number equal to that of the sphaleron and we conjecture that such strings are ``extended…

高能物理 - 唯象学 · 物理学 2007-05-23 Tanmay Vachaspati

We study the electroweak phase transition in the alignment limit of the CP-conserving two-Higgs-doublet model (2HDM) of Type I and Type II. The effective potential is evaluated at one-loop, where the thermal potential includes Daisy…

高能物理 - 唯象学 · 物理学 2018-07-04 Jérémy Bernon , Ligong Bian , Yun Jiang

We study the electroweak phase transition in three scalar extension models beyond the Standard Model. Assuming new scalars are decoupled at some heavy scale, we use the covariant derivative expansion method to derive all of the dimension-6…

高能物理 - 唯象学 · 物理学 2018-04-10 Qing-Hong Cao , Fa Peng Huang , Ke-Pan Xie , Xinmin Zhang

We discuss the finite-temperature effective potential of the Standard Model, $\veff$, with emphasis on the resummation of the most important infrared contributions. We compute the one-loop scalar and vector boson self-energies in the…

高能物理 - 唯象学 · 物理学 2010-11-01 J. R. Espinosa , M. Quiros , F. Zwirner

The electroweak phase transition is studied at finite temperature. The effective action is given to higher orders, including wave function correction factors and the full $g^4,\lambda^2$ effective potential. An upper bound for the Higgs…

高能物理 - 唯象学 · 物理学 2016-09-01 Z. FODOR

The one-loop effective potential for gauge models in static de Sitter space at finite temperatures is computed by means of the $\zeta$--function method. We found a simple relation which links the effective potentials of gauge and scalar…

高能物理 - 理论 · 物理学 2016-09-06 Lara De Nardo , Dmitri V. Fursaev , Gennaro Miele

We investigate the electroweak phase transition patterns for a recently proposed baryogenesis model with CP violation originated in the dark sector. The model includes a complex scalar singlet-Higgs boson portal, a $U(1)_l$ gauge lepton…

高能物理 - 唯象学 · 物理学 2023-03-22 Marcela Carena , Ying-Ying Li , Tong Ou , Yikun Wang

We investigate the dynamics of the electroweak phase transition within an extended Standard Model framework that includes one real scalar $(\Phi)$ and one complex scalar $(S)$, both of which are SM gauge singlets. The global $U(1)$ symmetry…

高能物理 - 唯象学 · 物理学 2025-01-22 Dilip Kumar Ghosh , Koustav Mukherjee , Shourya Mukherjee

We perform a nonperturbative lattice study of the electroweak phase transition in the real singlet scalar extension of the Standard Model.We consider both the heavy and light singlet-like scalar regimes at non-zero singlet-doublet mixing…

高能物理 - 唯象学 · 物理学 2024-08-13 Lauri Niemi , Michael J. Ramsey-Musolf , Guotao Xia