English
Related papers

Related papers: The Standard Model CP Violation is Enough

200 papers

We present a novel Baryogenesis mechanism in which an asymmetry of scalars in a three-Higgs doublet model produced exiting a CP-violating inflationary set-up is translated into an asymmetry of baryons through electroweak instantons.

High Energy Physics - Phenomenology · Physics 2024-12-18 Venus Keus , Edward W. Kolb

We show that a CP-violating interaction induced by a derivative coupling between the running vacuum and a non-conserving baryon current may dynamically break CPT and trigger baryogenesis through an effective chemical potential. By assuming…

General Relativity and Quantum Cosmology · Physics 2017-12-15 J. A. S. Lima , Douglas Singleton

We describe the role of CP violation in the generation of the baryon asymmetry of the Universe, in the framework of baryogenesis through leptogenesis, with emphasis on the possible relationship between CP violation at low energies and that…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gustavo C. Branco

Baryon asymmetry of the universe is generated in the supersymmetric standard model (SSM) through the charge transport mechanism mediated by top squarks. Necessary CP violation originates from a complex phase contained in mass-squared…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mayumi Aoki , Noriyuki Oshimo

We consider the scattering of quasi-particles off the boundary created during a first order electroweak phase transition. Spatial coherence is lost due to the quasi-quark damping rate, and we show that reflection on the boundary is…

High Energy Physics - Phenomenology · Physics 2010-11-01 M. B. Gavela , P. Hernandez , J. Orloff , O. Pène , C. Quimbay

We present a gauged baryon number model as an example of models where all new fermions required to cancel out the anomalies help to solve phenomenological problems of the standard model (SM). Dark fermion doublets, along with the…

High Energy Physics - Phenomenology · Physics 2022-09-19 Diego Restrepo , Andrés Rivera , Walter Tangarife

In the near future, the Deep Underground Neutrino Experiment and the European Spallation Source aim to reach unprecedented sensitivity in the search for neutron-antineutron ($n\text{-}\bar{n}$) oscillations, whose observation would directly…

High Energy Physics - Phenomenology · Physics 2021-11-18 Kåre Fridell , Julia Harz , Chandan Hati

We present a testable mechanism of low-scale baryogenesis and dark matter production in which neither baryon nor lepton number are violated. Charged $D$ mesons are produced out-of-equilibrium at tens of MeV temperatures. The $D$ mesons…

High Energy Physics - Phenomenology · Physics 2021-02-12 Gilly Elor , Robert McGehee

Baryon asymmetry of the Universe is evaluated in the model originally proposed in Phys. Rev. Lett. 102 (2009) 051805, where Majorana masses of neutrinos are generated via three-loop diagrams composed of additional scalar bosons including…

High Energy Physics - Phenomenology · Physics 2023-06-19 Mayumi Aoki , Kazuki Enomoto , Shinya Kanemura

A review of CP violation from the Standard Model to strings is given which includes a broad landscape of particle physics models, encompassing the non-supersymmetric 4D extensions of the standard model, and models based on supersymmetry, on…

High Energy Physics - Phenomenology · Physics 2008-11-26 Tarek Ibrahim , Pran Nath

Contrary to popular beliefs, it is possible to explain Baryonic asymmetry of the Universe inside the Standard Model, provided inflation ended into a broken phase below the electroweak transition. Two important ingredients of the solution…

High Energy Physics - Phenomenology · Physics 2011-12-13 E. Shuryak

We propose a variant of electroweak-scale baryogenesis characterized by the spontaneous breaking of the charge-parity (CP) symmetry in the early Universe driven by the vacuum expectation value of a CP-odd scalar. This CP breaking period in…

High Energy Physics - Phenomenology · Physics 2023-05-10 S. J. Huber , K. Mimasu , J. M. No

We discuss the possibility of relating the size and sign of the observed baryon asymmetry of the universe to CP violation observable at low energies, in a framework where the observed baryon asymmetry is produced by leptogenesis through out…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. C. Branco , T. Morozumi , B. M. Nobre , M. N. Rebelo

CP violation is a crucial component in the creation of the matter - anti matter asymmetry of the universe. An important open question is whether the CP violating phenomena observeable in terrestrial experiments have any relation with those…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mihir P. Worah

We consider a class of baryogenesis models where the Lagrangian in the visible sector is Charge-Parity (CP) invariant and a baryon asymmetry is produced only when quantum statistics is taken into account. The CP symmetry is broken by matter…

High Energy Physics - Phenomenology · Physics 2017-05-24 Nikita Blinov , Anson Hook

We explore a mechanism for producing the baryon asymmetry and dark matter in models with multiple hidden sectors that are Standard-Model-like but with varying Higgs mass parameters. If the field responsible for reheating the Standard Model…

High Energy Physics - Phenomenology · Physics 2024-04-08 Hassan Easa , Thomas Gregoire , Daniel Stolarski , Catarina Cosme

CP violation in neutral $B$ meson oscillations is an experimental observable that could be directly related to the baryon asymmetry of the Universe through the $B$-Mesogenesis mechanism. As this phenomenon is highly suppressed in the…

High Energy Physics - Phenomenology · Physics 2024-10-21 Carlos Miró , Miguel Escudero , Miguel Nebot

We show that both the baryon asymmetry of the Universe and the dark matter abundance can be explained within a single framework that makes use of maximally helical hypermagnetic fields produced during pseudoscalar inflation and the chiral…

High Energy Physics - Phenomenology · Physics 2019-10-10 Yann Cado , Eray Sabancilar

We compute the baryon asymmetry in the Universe in the framework of the standard model with the only source of CP violation in the CKM matrix. Our result is within and very close to the theoretical limits for baryon asymmetry found in the…

High Energy Physics - Phenomenology · Physics 2018-09-11 Renata Jora

Electroweak baryogenesis depends on the profile of the bubble wall created in the first-order phase transition. It is pointed out that CP violation in the Higgs sector of the MSSM could become large enough to explain the baryon asymmetry.…

High Energy Physics - Phenomenology · Physics 2009-10-31 Koichi Funakubo , Shoichiro Otsuki , Fumihiko Toyoda