中文
相关论文

相关论文: Dynamical CP Violation in the Early Universe and L…

200 篇论文

CP violation in K and B decays is reviewed in the Standard Model (SM) and beyond the SM. In K decays, one is seeking first evidence for CP violation in direct $K\to \pi\pi$ decays. This would not give a precise quantitative test for the…

高能物理 - 唯象学 · 物理学 2014-11-17 Michael Gronau

In these lecture notes an introduction is given to some ideas and attempts to understand the origin of the matter-antimatter asymmetry of the universe. After the discussion of some basic issues of cosmology and particle theory the scenarios…

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

We propose a scalar Triplet extension of the standard model (SM) to unify the origin of neutrino mass with the visible and dark matter component of the Universe. We assume that the scalar triplet is super heavy, so that its CP-violating…

高能物理 - 唯象学 · 物理学 2012-12-18 Narendra Sahu

We present a novel realization of Dirac leptogenesis based on the post-inflationary reheating phase of the early universe. An asymmetry generated within the scalar sector via CP-violating and out-of-equilibrium inflaton decays is…

高能物理 - 唯象学 · 物理学 2025-11-07 Aqeel Ahmed , Juan P. Garcés , Manfred Lindner

We propose a phenomenological model of lepton mixing and CP violation based on the flavor democracy of charge leptons and the mass degeneracy of neutrinos. A nearly bi-maximal flavor mixing pattern, which is favored by current data on…

高能物理 - 唯象学 · 物理学 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

These proceedings introduce the main techniques and ideas for a systematic effective field theory analysis of CP violation in the charged lepton sector. This study is required because the Standard Model of particle physics predicts a very…

高能物理 - 唯象学 · 物理学 2022-09-21 Giovanni Marco Pruna

We compute a net electric current during a first order EWPT arising from the asymmetric propagation of fermion chiral modes due to a CP-violating interaction with the Higgs. The interaction is quantified in terms of a CP-violating phase in…

高能物理 - 唯象学 · 物理学 2018-03-14 Alejandro Ayala , L. A. Hernández , Jordi Salinas

We analyze generalized CP symmetries of two-Higgs doublet models, extending them from the scalar to the fermion sector of the theory. We show that, with a single exception, those symmetries imply massless fermions. The single model which…

高能物理 - 唯象学 · 物理学 2011-02-09 P. M. Ferreira , Joao P. Silva

Light sterile neutrinos mixing with the active ones have been recently proposed to solve different anomalies observed in short-baseline oscillation experiments. These neutrinos can also be produced by oscillations of the active neutrinos in…

高能物理 - 唯象学 · 物理学 2013-05-30 Alessandro Mirizzi , Ninetta Saviano , Gennaro Miele , Pasquale Dario Serpico

We analyse the properties of generic models based on an SU(3) family symmetry providing a full description of quark charged lepton and neutrino masses and mixing angles. We show that a precise fit of the resulting fermion textures is…

高能物理 - 唯象学 · 物理学 2009-11-10 Graham G. Ross , Liliana Velasco-Sevilla , Oscar Vives

Soft leptogenesis is a mechanism which generates the matter-antimatter asymmetry of the Universe via the out-of-equilibrium decays of heavy sneutrinos in which soft supersymmetry breaking terms play two important roles: they provide the…

高能物理 - 唯象学 · 物理学 2015-05-05 Rathin Adhikari , Arnab Dasgupta , Chee Sheng Fong , Raghavan Rangarajan

We study how to incorporate CP violation in the Froggatt--Nielsen (FN) mechanism. To this end, we introduce non-renormalizable interactions with a flavor democratic structure to the fermion mass generation sector. It is found that at least…

高能物理 - 唯象学 · 物理学 2008-11-26 Shinya Kanemura , Koichi Matsuda , Toshihiko Ota , Serguey Petcov , Tetsuo Shindou , Eiichi Takasugi , Koji Tsumura

The phenomenon of CP violation in the B system and strategies for extracting CKM phases are reviewed. We focus both on general aspects and on some recent developments including CP-violating asymmetries in B_d decays, the B_s system in light…

高能物理 - 唯象学 · 物理学 2014-11-17 Robert Fleischer

Supersymmetric models with bilinear R-parity violation (BRpV) provide a framework for neutrino masses and mixing angles to explain neutrino oscillation data. We consider CP violation within the new physical phases in BRpV and discuss their…

高能物理 - 唯象学 · 物理学 2014-09-17 Asma Cheriguene , Stefan Liebler , Werner Porod

We provide simple examples of the generation of complex mass terms and hence CP violation through dimensional reduction.

高能物理 - 唯象学 · 物理学 2008-11-26 N. Cosme , J. -M. Frere , L. Lopez Honorez

In this work, we study the appearance of neutrino asymmetries during the expansion of the Universe. A mathematical model based on differential equations was used to describe the processes of neutrino oscillations considering CP violation…

高能物理 - 唯象学 · 物理学 2024-02-29 A. P Serebrov , O. M. Zherebtsov , R. M. Samoilov , N. S. Budanov

We study the implications of a successful leptogenesis within the framework of Minimal Lepton Flavour Violation combined with radiative resonant leptogenesis and the PMNS matrix being the only source of CP violation, which can be obtained…

高能物理 - 唯象学 · 物理学 2008-11-26 Selma Uhlig

We consider spontaneous CP violation in the Next to Minimal Supersymmetric Standard Model (NMSSM), without the usual $Z_3$ discrete symmetry. CP violation can occur at tree level, raising a potential conflict with the experimental bounds on…

高能物理 - 唯象学 · 物理学 2007-05-23 A. T. Davies , C. D. Froggatt , A. Usai

We investigate a minimal extension of the Leptogenesis framework that simultaneously explains the observed baryon asymmetry and dark matter (DM) abundance through the decay of a heavy Majorana neutrino. In this scenario, CP violation arises…

高能物理 - 唯象学 · 物理学 2026-04-22 Henry G. F. McKenna , Juri Smirnov , Martin Gorbahn

We explore the theoretical constraints on the observable parameters of neutrino mixing on predictions for the leptonic Dirac CP-violating phase within a well-studied class of simple theoretical models that includes a single source of CP…

高能物理 - 唯象学 · 物理学 2022-10-06 Lisa L. Everett , Raymundo Ramos , Ariel B. Rock , Alexander J. Stuart