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We investigate the role played by subcritical bubbles at the onset of the electroweak phase transition. Treating the configuration modelling the thermal fluctuations around the homogeneous zero configuration of the Higgs field as a…

High Energy Physics - Phenomenology · Physics 2011-05-23 F. Illuminati , A. Riotto

We study the importance of thermal fluctuations during the electroweak phase transition. We evaluate in detail the equilibrium number density of large amplitude subcritical fluctuations and discuss the importance of phase mixing to the…

High Energy Physics - Phenomenology · Physics 2009-10-28 Rudnei O. Ramos

Light new physics weakly coupled to the Higgs can induce a strong first-order electroweak phase transition (EWPT). Here, we argue that scenarios in which the EWPT is driven first-order by a light scalar with mass between $\sim 10$ GeV -…

High Energy Physics - Phenomenology · Physics 2020-07-01 Jonathan Kozaczuk , Michael J. Ramsey-Musolf , Jessie Shelton

Strongly first-order phase transitions, i.e., those with a large order parameter, are characterized by a considerable supercooling and high velocities of phase transition fronts. A very strong phase transition may have important…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-26 Ariel Megevand , Santiago Ramirez

A new mechanism of black hole formation in a first order phase transition is proposed. In vacuum bubble collisions the interaction of bubble walls leads to the formation of nontrivial vacuum configuration. The consequent collapse of this…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Yu. Khlopov , R. V. Konoplich , S. G. Rubin , A. S. Sakharov

First order phase transitions could play a major role in the early universe, providing important phenomenological consequences, such as the production of gravitational waves and the generation of baryon asymmetry. An important aspect that…

High Energy Physics - Phenomenology · Physics 2022-05-25 Stefania De Curtis , Luigi Delle Rose , Andrea Guiggiani , Ángel Gil Muyor , Giuliano Panico

We investigate the evolution of the electroweak phase transition, using a one-Higgs effective potential that can be regarded as an approximation for the Minimal Supersymmetric Standard Model. The phase transition occurs in a small interval…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ariel Megevand

We study the bulk mass effects on the electroweak phase transition at finite temperature in a five dimensional SU(3) gauge-Higgs unification model on an orbifold. We investigate whether the Higgs mass satisfying the experimental lower bound…

High Energy Physics - Phenomenology · Physics 2009-11-11 Nobuhito Maru , Kazunori Takenaga

We investigate the dynamics of a strong first-order quark-hadron transition driven by cubic interaction via homogeneous bubble nucleation in the Friedberg-Lee model. The one-loop effective thermodynamics potential of the model and the…

High Energy Physics - Phenomenology · Physics 2021-03-22 Shuying Zhou , Song Shu , Hong Mao

We discuss the critical bubbles of the electroweak phase transition using an effective high-temperature 3-dimensional action for the Higgs field $\varphi$. The separate integration of gauge and Goldstone boson degrees of freedom is…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Kripfganz , A. Laser , M. G. Schmidt

A granular system confined in a quasi two-dimensional box that is vertically vibrated can transit to an absorbing state in which all particles bounce vertically in phase with the box, with no horizontal motion. In principle, this state can…

Statistical Mechanics · Physics 2015-06-18 Baptiste Néel , Ignacio Rondini , Alex Turzillo , Nicolás Mujica , Rodrigo Soto

Weak first-order phase transitions proceed with percolation of new phase. The kinematics of this process is clarified from the point of view of subcritical bubbles. We examine the effect of small subcritical bubbles around a large domain of…

High Energy Physics - Theory · Physics 2009-10-30 Tetsuya Shiromizu , Masahiro Morikawa

We study the dynamics of electroweak bubbles in the scenario of a strong first order inverse electroweak phase transition at the TeV scale involving the global structure of the nonlinear sigma field in the littlest Higgs model with T…

High Energy Physics - Phenomenology · Physics 2014-01-14 Sahazada Aziz , Buddhadeb Ghosh

We conjecture that the Higgs potential can be significantly modified when it is in close proximity to the horizon of an astrophysical black hole, leading to the destabilization of the electroweak vacuum. In this situation, the black hole…

High Energy Astrophysical Phenomena · Physics 2023-06-27 Mariam Chitishvili , Merab Gogberashvili , Rostislav Konoplich , Alexander S. Sakharov

We discuss the unique phenomenology of first-order phase transitions catalyzed by primordial black holes (BHs). If the number of BHs within one Hubble volume is smaller than unity at the time of bubble nucleation, each bubble catalyzed…

High Energy Physics - Phenomenology · Physics 2024-02-26 Ryusuke Jinno , Jun'ya Kume , Masaki Yamada

We discuss homogeneous nucleation in a first-order chiral phase transition within an effective field theory approach to low-energy QCD. Exact decay rates and bubble profiles are obtained numerically and compared to analytic results obtained…

High Energy Physics - Phenomenology · Physics 2009-10-31 O. Scavenius , A. Dumitru , E. S. Fraga , J. T. Lenaghan , A. D. Jackson

We derivate the Langevin and the Fokker-Planck equations for the radius of $O(3)$-symmetric subcritical bubbles as a phenomenological model to treat thermal fluctuation. The effect of thermal noise on subcritical bubbles is examined. We…

Astrophysics · Physics 2009-10-28 Tetsuya Shiromizu , Masahiro Morikawa , Jun'ichi Yokoyama

We compute systematically the probability for fluctuations of the Higgs field, averaged over a given spatial scale, to exceed a specified value, in the Standard Model. For the particular case of interest of averages over one coherence…

High Energy Physics - Phenomenology · Physics 2009-10-28 Luis M. A. Bettencourt

Supercooled liquids give rise, by homogeneous nucleation, to solid superclusters acting as building blocks of glass, ultrastable glass, and glacial glass phases before being crystallized. Liquid-to-liquid phase transitions begin to be…

Disordered Systems and Neural Networks · Physics 2019-06-26 Robert F. Tournier

It was recently demonstrated that small small black holes can act as seeds for nucleating decay of the metastable Higgs vacuum, dramatically increasing the tunneling probability. Any primordial black hole lighter than $4.5 \times 10^{14}$g…

High Energy Physics - Phenomenology · Physics 2020-07-01 De-Chang Dai , Ruth Gregory , Dejan Stojkovic