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We study the electroweak phase transition in an effective 3-dimensional theory for a Higgs mass of about 70 GeV by Monte Carlo simulations. The transition temperature and jumps of order parameters are obtained and extrapolated to the…

High Energy Physics - Lattice · Physics 2009-10-28 M. Gürtler , E. -M. Ilgenfritz , J. Kripfganz , H. Perlt , A. Schiller

The electroweak phase transition is investigated by means of the perturbatively calculated high temperature effective potential. An analytic result to order $g^4,\lambda^2$ is presented for the Abelian Higgs model, the SU(2)-Higgs model and…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Hebecker

We perform a detailed semi-analytical analysis of the electroweak phase transition (EWPT) property in NMSSM, which serves as a good benchmark model in which the 126 GeV Higgs mixes with a singlet. In this case, a strongly first order…

High Energy Physics - Phenomenology · Physics 2015-01-14 Weicong Huang , Zhaofeng Kang , Jing Shu , Peiwen Wu , Jin Min Yang

We study the thermodynamics of the electroweak theory at a finite lepton number density. The phase diagram of the theory is calculated by relating the full 4-dimensional theory to a 3-dimensional effective theory which has been previously…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Gynther

Phase transitions induced by high temperatures and strong magnetic fields are investigated in the Standard model. The consistent effective potential including the one-loop and ring diagram contributions is calculated and investigated for…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Skalozub , M. Bordag

We study the electroweak phase transition by lattice simulations of an effective 3-dimensional theory, for a Higgs mass of about $70$ GeV. Exploiting a variant of the equal weight criterion of phase equilibrium, we obtain transition…

High Energy Physics - Lattice · Physics 2009-10-28 M. Guertler , E. -M. Ilgenfritz , J. Kripfganz , H. Perlt , A. Schiller

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…

High Energy Physics - Phenomenology · Physics 2022-06-22 Shinya Kanemura , Ryo Nagai , Masanori Tanaka

We reexamine the strength of the first order phase transition in the electroweak theory supplemented by an extra Higgs doublet. The finite-temperature effective potential, $V_{eff}$, is computed to one-loop order, including the summation of…

High Energy Physics - Phenomenology · Physics 2009-10-28 James M. Cline , Pierre-Anthony Lemieux

We discuss the end of the first order phase transition and the bound state spectrum, both at weak transition and at the crossover.

High Energy Physics - Lattice · Physics 2007-05-23 M. Gürtler , E. -M. Ilgenfritz , A. Schiller , C. Strecha

Presented at the 1992 Meeting of the DPF, Fermilab. The electroweak phase transition is reviewed in light of some recent developments. Emphasis is on the issue whether the transition is first or second order and its possible role in the…

High Energy Physics - Phenomenology · Physics 2008-02-03 Patrick Huet

We analyze the electroweak phase transition at finite temperature in a model of gauge-Higgs unification where the fermion mass hierarchy including top quark mass, a viable electroweak symmetry breaking and an observed Higgs mass are…

High Energy Physics - Phenomenology · Physics 2020-02-26 Yuki Adachi , Nobuhito Maru

In the standard scenario, the electroweak phase transition is a first order phase transition which completes by the nucleation of critical bubbles. Recently, there has been speculation that the standard picture of the electroweak phase…

High Energy Physics - Phenomenology · Physics 2007-05-23 Greg W. Anderson

Recent developments on the four dimensional (4d) lattice studies of the finite temperature electroweak phase transition (EWPT) are summarized. The phase diagram is given in the continuum limit. The finite temperature SU(2)-Higgs phase…

High Energy Physics - Lattice · Physics 2015-06-25 Z. Fodor

We present the results of extensive simulations regarding the critical behavior at the endpoint of the Roberge-Weiss transition for N_f = 2 QCD. We confirm early evidence, presented in arXiv:0909.0254, according to which the Roberge-Weiss…

High Energy Physics - Lattice · Physics 2011-07-11 Claudio Bonati , Guido Cossu , Massimo D'Elia , Francesco Sanfilippo

We study the electroweak phase transition in the minimal extension of the Standard Model: an extra complex singlet with zero vacuum expectation value. The first-order phase transition is strengthened by the cubic term triggered in the…

High Energy Physics - Phenomenology · Physics 2009-10-22 J. R. Espinosa , M. Quirós

We investigate the effects of a large-scale background hypermagnetic field on the electroweak phase transition. We propose a model in which an effective weak angle varies during the electroweak phase transition and upon its use we show…

High Energy Physics - Phenomenology · Physics 2022-05-31 H. Abedi , M. Ahmadvand , S. S. Gousheh

In an extension of the Standard Model with a scalar color octet, the possibility of the strongly first-order electroweak phase transition is studied, by examining the finite-temperature effective Higgs potential at the one-loop level. It is…

High Energy Physics - Phenomenology · Physics 2010-04-14 S. W. Ham , Seong-a Shim , S. K. Oh

The phase transition in the Weinberg-Salam-Glashow (GSW) electroweak theory extended by the majoron and dilaton field is considered. The possibility of the boson condensation in the extreme conditions in the standard electroweak theory is…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Ma'nka

We investigate an effective model for the finite temperature restoration phase transition of the electroweak theory. It is obtained by dimensional reduction of the $3+1$ dimensional full theory and by subsequent integration over all static…

High Energy Physics - Lattice · Physics 2011-07-19 F. Karsch , T. Neuhaus , A. Patkos

The electroweak phase transition is considered in framework of the reduced minimal 3-3-1 model (RM331). Structure of phase transition in this model is divided into two periods. The first period is the phase transition SU(3) ---> SU(2) at…

High Energy Physics - Phenomenology · Physics 2013-11-18 Vo Quoc Phong , Hoang Ngoc Long , Vo Thanh Van