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In this paper we study phase transitions in a maximally symmetric composite Higgs model with next-to-minimal coset, where a pseudoscalar singlet emerges alongside the Higgs doublet. The maximal symmetry guarantees the finiteness of the…

High Energy Physics - Phenomenology · Physics 2025-02-27 Avik Banerjee , Marco Merchand , Ignacy Nałęcz

The knowledge of the Higgs potential is crucial for understanding the origin of mass and the thermal history of our Universe. We show how collider measurements and observations of stochastic gravitational wave signals can complement each…

High Energy Physics - Phenomenology · Physics 2022-06-14 Dorival Gonçalves , Ajay Kaladharan , Yongcheng Wu

We present a dedicated complementarity study of gravitational wave and collider measurements of the simplest extension of the Higgs sector: the singlet scalar augmented Standard Model. We study the following issues: (i) the electroweak…

High Energy Physics - Phenomenology · Physics 2019-04-12 Alexandre Alves , Tathagata Ghosh , Huai-Ke Guo , Kuver Sinha , Daniel Vagie

We study stochastic gravitational wave production and baryon number generation at electroweak phase transition with the two Higgs doublet models. The produced stochastic gravitational wave during the strongly first-order phase transition…

High Energy Physics - Phenomenology · Physics 2022-04-19 Ruiyu Zhou , Ligong Bian

The inert doublet model is a well-motivated extension of the Standard Model that contains a dark matter candidate and modifies the dynamics of the electroweak symmetry breaking. In order to detail its phenomenology, we perform a…

High Energy Physics - Phenomenology · Physics 2022-12-28 Nico Benincasa , Luigi Delle Rose , Kristjan Kannike , Luca Marzola

We report on the first joint analysis of observational signatures from the electroweak baryogenesis in both gravitational wave (GW) detectors and particle colliders. With an effective extension of the Higgs sector in terms of the…

High Energy Physics - Phenomenology · Physics 2016-08-17 Fa Peng Huang , Youping Wan , Dong-Gang Wang , Yi-Fu Cai , Xinmin Zhang

By assuming a dynamical source of CP violation, the tension between sufficient CP violation for successful electroweak baryogenesis and strong constraints from current electric dipole moment measurements could be alleviated. We study how to…

High Energy Physics - Phenomenology · Physics 2018-07-11 Fa Peng Huang , Zhuoni Qian , Mengchao Zhang

We calculate the spectrum of gravitational waves originated from strongly first order electroweak phase transition in the extended Higgs model with a real singlet field. In order to calculate the bubble nucleation rate, we perform a…

High Energy Physics - Phenomenology · Physics 2017-01-04 Katsuya Hashino , Mitsuru Kakizaki , Shinya Kanemura , Pyungwon Ko , Toshinori Matsui

We quantitatively study the charge transport mechanism of electroweak baryogenesis in a realistic two-Higgs-doublet model, comparing the contributions from quarks and leptons reflecting from electroweak domain walls, and comparing the exact…

High Energy Physics - Phenomenology · Physics 2009-10-28 James M. Cline , Kimmo Kainulainen , Axel P. Vischer

We investigate the cosmological phase transition dynamics in a supersymmetric left-right symmetric model based on the gauge group $SU(3)_C \times SU(2)_L \times SU(2)_R \times U(1)_{B-L}$ that addresses the strong CP problem through…

High Energy Physics - Phenomenology · Physics 2025-10-21 Naoyuki Haba , Yasuhiro Shimizu , Toshifumi Yamada

We investigate the possibility of a strong first-order electroweak phase transition during the early universe within the framework of the gauged two-Higgs doublet model (G2HDM) and explore its detectability through stochastic gravitational…

High Energy Physics - Phenomenology · Physics 2024-08-12 Michael J. Ramsey-Musolf , Van Que Tran , Tzu-Chiang Yuan

We perform a complementarity study of gravitational waves and colliders in the context of electroweak phase transitions choosing as our template the xSM model, which consists of the Standard Model augmented by a real scalar. We carefully…

High Energy Physics - Phenomenology · Physics 2018-12-27 Alexandre Alves , Tathagata Ghosh , Huai-Ke Guo , Kuver Sinha

Thermal corrections in classically conformal models typically induce a strong first-order electroweak phase transition, thereby resulting in a stochastic gravitational wave background that could be detectable at gravitational wave…

High Energy Physics - Phenomenology · Physics 2017-08-02 Luca Marzola , Antonio Racioppi , Ville Vaskonen

In a singlet pseudoscalar extension of the two-Higgs-doublet model we discuss spontaneous CP violation electroweak baryogenesis via two different patterns of phase transitions (PTs): (i) two-step PTs whose first-step and second-step are…

High Energy Physics - Phenomenology · Physics 2023-02-10 Songtao Liu , Lei Wang

Upcoming gravitational wave (GW) detectors might detect a stochastic background of GWs potentially arising from many possible sources, including bubble collisions from a strongly first-order electroweak phase transition. We investigate…

High Energy Physics - Phenomenology · Physics 2014-11-20 John Kehayias , Stefano Profumo

We study the electroweak phase transition within a 5D warped model including a scalar potential with an exponential behavior, and strong back-reaction over the metric, in the infrared. By means of a novel treatment of the superpotential…

High Energy Physics - Phenomenology · Physics 2018-10-17 Eugenio Megias , Germano Nardini , Mariano Quiros

We investigate the properties of a stochastic gravitational wave background produced by a first-order electroweak phase transition in the regime of extreme supercooling. We study a scenario whereby the percolation temperature that signifies…

High Energy Physics - Phenomenology · Physics 2017-11-09 Archil Kobakhidze , Cyril Lagger , Adrian Manning , Jason Yue

In the singlet Majoron model, we study cosmological phase transitions (PTs) and their resulting gravitational waves (GWs), in the two-field phase space, without freezing any of the field directions. We first calculate the effective…

High Energy Physics - Phenomenology · Physics 2019-01-14 Youping Wan , Batool Imtiaz , Yi-Fu Cai

We consider various models realizing baryogenesis during the electroweak phase transition (EWBG). Our focus is their possible detection in future collider experiments and possible observation of gravitational waves emitted during the phase…

High Energy Physics - Phenomenology · Physics 2017-04-05 Michał Artymowski , Marek Lewicki , James D. Wells

We provide a roadmap for analyzing the interplay between hypothetical future collider observations and the detection of a gravitational wave signal produced by a strong first order electroweak phase transition in beyond the Standard Model…

High Energy Physics - Phenomenology · Physics 2024-05-06 Leon S. Friedrich , Michael J. Ramsey-Musolf , Tuomas V. I. Tenkanen , Van Que Tran
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