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We numerically study the correlation between CP violation in the neutrino oscillations and baryogenesis in the seesaw model. In this study we get the heavy Majorana neutrino masses and lepton number asymmetries from their decays by fitting…

高能物理 - 唯象学 · 物理学 2009-11-07 T. Endoh , T. Morozumi , A. Purwanto

We study the CP violating effects in the decay of $\eta\to\pi^+\pi^-\gamma$. We show that to have CP violation in the decay, one has to consider both linear and circular photon polarizations. In the standard model, the polarizations are…

高能物理 - 唯象学 · 物理学 2009-11-07 C. Q. Geng , J. N. Ng , T. H. Wu

Leptonic CP violation is one of the most important topics in neutrino physics. CP violation in the neutrino sector is strongly related to the nature of neutrinos: whether they are Dirac or Majorana particles. In \cite{Popov:2021icg} we have…

高能物理 - 唯象学 · 物理学 2023-02-14 Artem Popov , Alexander Studenikin

Taking into account the recent progress in the understanding of the lepton flavour effects in leptogenesis, we investigate in detail the possibility that the CP-violation necessary for the generation of the baryon asymmetry of the Universe…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Pascoli , S. T. Petcov , Antonio Riotto

Assuming the seesaw and leptogenesis mechanisms, I give some general remarks on possible connection or disconnection between CP violation in heavy Majorana neutrino decays and that in neutrino oscillations. A simple but predictive ansatz is…

高能物理 - 唯象学 · 物理学 2009-11-07 Zhi-zhong Xing

Leptonic CP violation is one of the most important topics in neutrino physics. CP violation in the neutrino sector is strongly related to the nature of neutrinos: whether they are Dirac or Majorana particles. In \cite{Popov:2021icg} we have…

高能物理 - 唯象学 · 物理学 2024-06-11 A. Popov , A. Studenikin

If CP violation in the decays of neutral kaons is due to phases in the weak couplings of quarks, as encoded in the Cabibbo-Kobayashi-Maskawa (CKM) matrix, there are many other experimental consequences. Notable among these are CP-violating…

高能物理 - 唯象学 · 物理学 2009-09-25 J. Rosner

CP violation in $B$ decays is reviewed in the Standard Model (SM) and beyond the SM. The present explanation of CP violation in terms of a phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix can be tested through a variety of CP asymmetries…

高能物理 - 唯象学 · 物理学 2016-09-06 Michael Gronau

The $CP$ violation in the neutrino transition electromagnetic dipole moment is discussed in the context of the Standard Model with an arbitrary number of right-handed singlet neutrinos. A full one-loop calculation of the neutrino…

高能物理 - 唯象学 · 物理学 2020-12-29 Shyam Balaji , Maura Ramirez-Quezada , Ye-Ling Zhou

We study the correlation between CP violation in neutrino oscillations and leptogenesis in the framework with two heavy Majorana neutrinos and three light neutrinos. Among three unremovable CP phases, a heavy Majorana phase contributes to…

高能物理 - 唯象学 · 物理学 2009-11-07 T. Endoh , S. Kaneko , S. K. Kang , T. Morozumi , M. Tanimoto

We give a pedagogical review of the theory of CP violation with emphasis on the implications of recent experimental results. The review includes: (i) A detailed description of how CP violation arises in the Standard Model and in its…

高能物理 - 唯象学 · 物理学 2007-05-23 Yosef Nir

Discovery of the CP-violation in the lepton sector is one of the challenges of the particle physics. We search for possible principles, symmetries and phenomenological relations that can lead to particular values of the CP-violating Dirac…

高能物理 - 唯象学 · 物理学 2010-10-27 Y. Farzan , A. Yu. Smirnov

In the framework of the left-right symmetric model the CP-parity violation has been studied in heavy Majorana neutrino decays $N\rightarrow e^{\mp} \mu^{\pm} n$. The numerical estimates of CP-asymmetry for different masses of neutrino and…

高能物理 - 唯象学 · 物理学 2010-11-01 R. A. Alanakyan , H. M. Asatrian , A. N. Ioannisian , S. A. Chatrchyan

We review the basic mechanisms of neutrino mass generation and the corresponding structure of the lepton mixing matrix. We summarize the status of three-neutrino oscillation parameters as determined from current observations, using…

高能物理 - 唯象学 · 物理学 2009-11-13 Hiroshi Nunokawa , Stephen Parke , Jose W. F. Valle

The problem of CP conservation and CP violation for two heavy neutrinos production in $e^+e^-$ interaction is considered. Very convenient way of parametrization of the neutrino mass matrix, from which necessary and sufficient condition for…

高能物理 - 唯象学 · 物理学 2010-11-01 J. Gluza , M. Zralek

The tiny neutrino masses can be explained naturally by extending the standard model with right-handed Majorana neutrinos in low-scale seesaw mechanism, and the CP violation effect induced by Majorana phase is interesting and worth studying…

高能物理 - 唯象学 · 物理学 2021-10-22 Peng-Cheng Lu , Zong-Guo Si , Zhe Wang , Xing-Hua Yang

With the help of a block parametrization of the canonical seesaw flavor textures in terms of the Euler-like rotation angles and CP-violaing phases, we derive a general and explicit expression for the Jarlskog invariant of CP violation in…

高能物理 - 唯象学 · 物理学 2023-08-09 Zhi-zhong Xing

Non-standard physics which can be described by effective four fermion interactions may be an additional source of CP violation in the neutrino propagation. We discuss the detectability of such a CP violation at a neutrino factory. We assume…

高能物理 - 唯象学 · 物理学 2009-11-13 Walter Winter

We calculate the radiative decay amplitude for Majorana neutrinos in trilinear R-parity violating supersymmetric framework. Our results make no assumption regarding the masses and mixings of fermions and sfermions. The results obtained are…

高能物理 - 唯象学 · 物理学 2014-11-18 Gautam Bhattacharyya , Palash B. Pal , Heinrich Päs , Thomas J. Weiler

The phenomenology of 3-neutrino mixing, the current status of our knowledge about the 3-neutrino mixing parameters, including the absolute neutrino mass scale, and of the Dirac and Majorana CP violation in the lepton sector, are reviewed.…

高能物理 - 唯象学 · 物理学 2014-05-12 S. T. Petcov
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