English
Related papers

Related papers: CP violation in neutrino-photon scattering

200 papers

Neutrino oscillation experiments under neutrino pair beam from circulating excited heavy ions are studied. It is found that detection of double weak events has a good sensitivity to measure CP violating parameter and distinguish mass…

High Energy Physics - Phenomenology · Physics 2015-12-23 M. Yoshimura , N. Sasao

Elastic scattering of transversely polarized electron antineutrino beam off unpolarized electrons can be used to detect the CP-violating effects by measuring the azimuthal asymmetry of recoil electrons caused by the interference terms…

High Energy Physics - Phenomenology · Physics 2009-09-07 W. Sobków , S. Ciechanowicz , M. Misiaszek

We revisit the effect of the (Dirac) CP-violating phase on neutrino lepton number asymmetries in both mass- and flavor-basis. We found that, even if there are sizable effects on muon- and tau-neutrino asymmetries, the effect on the…

Cosmology and Nongalactic Astrophysics · Physics 2016-12-28 Gabriela Barenboim , Wan-Il Park

In supersymmetric theories, sneutrino--anti-sneutrino mixing can occur with the oscillation time $\sim 0.01$ ps corresponding the atmospheric neutrino mass scale $\sim 0.05$ eV. We explore the possibility of observing sneutrino oscillation…

High Energy Physics - Phenomenology · Physics 2014-11-17 Eung Jin Chun

We investigate CP-violation effect in the long-baseline neutrino oscillation in the four-neutrino model with mass scheme of the two nearly degenerate pairs separated with the order of 1 eV, by using the data from the solar neutrino deficit,…

High Energy Physics - Phenomenology · Physics 2009-10-31 Toshihiko Hattori , Tsutom Hasuike , Seiichi Wakaizumi

We discuss possibilities to investigate the effects of CP (and T) violation in the lepton sector in neutrino oscillation experiments. We consider the effects of CP violation in the framework of two schemes of mixing of four massive…

High Energy Physics - Phenomenology · Physics 2014-11-17 S. M. Bilenky , C. Giunti , W. Grimus

Accelerator-based neutrino oscillation experiments have the potential to revolutionise our understanding of fundamental physics, offering an opportunity to characterise charge-parity violation in the lepton sector; to determine the neutrino…

High Energy Physics - Experiment · Physics 2026-05-28 Stephen Dolan , Luke Pickering , Patrick Stowell , Callum Wilkinson , Clarence Wret

The potential for studying CP violation in neutrino oscillations using conventional neutrino and anti-neutrino beams is examined.

High Energy Physics - Phenomenology · Physics 2007-05-23 William J. Marciano

The cross section for photon neutrino scattering is calculated in the standard model assuming that the neutrino is massless and that the center of mass energy is small compared to any charged lepton mass. Although the scattered photons can…

High Energy Physics - Phenomenology · Physics 2009-10-22 Duane A. Dicus , Wayne W. Repko

We study the possibility to test CP invariance in the $W^+W^-$ production via photon fusion at NLC. The predictions of the CP violation effects are made within two Higgs doublet extensions of the minimal standard model, where CP violation…

High Energy Physics - Phenomenology · Physics 2010-11-01 J. P. Ma , B. H. J. McKellar

High-energy neutrino astronomy will be capable of observing particles at both extremely high energies and over extremely long baselines. These features make such experiments highly sensitive to the effects of CPT and Lorentz violation. In…

High Energy Physics - Phenomenology · Physics 2009-11-11 Dan Hooper , Dean Morgan , Elizabeth Winstanley

Neutrino oscillations in the presence of Lorentz violation can present novel observable signals in both long- and short-baseline experiments. In this talk we describe the theory and its different regimes depending on properties of the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jorge S. Diaz

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…

High Energy Physics - Phenomenology · Physics 2020-12-29 Shyam Balaji , Maura Ramirez-Quezada , Ye-Ling Zhou

The phenomenon of CP violation is crucial to understand the asymmetry between matter and antimatter that exists in the Universe. Dramatic experimental progress has been made, in particular in measurements of the behaviour of particles…

High Energy Physics - Experiment · Physics 2017-02-28 T. Gershon , V. V. Gligorov

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…

High Energy Physics - Phenomenology · Physics 2009-11-13 Hiroshi Nunokawa , Stephen Parke , Jose W. F. Valle

A review about some recent studies on the determination of the CP-violating complex parameters in supersymmetry at an e^+ e^- linear collider is presented. CP-even observables, like masses, cross sections and branching ratios, can have a…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Hesselbach

We propose a new method for measuring CP violation in neutrino oscillation experiments. The idea is to isolate the term due to the CP-violating phase out of the oscillation probability by taking difference between yields of two (or three)…

High Energy Physics - Phenomenology · Physics 2011-02-24 Hisakazu Minakata , Hiroshi Nunokawa

We constructed rephasing invariant measures of CP violation with elements of the neutrino mass matrix, in the basis in which the charged lepton mass matrix is diagonal. We discuss some examples of neutrino mass matrices with texture zeroes,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Utpal Sarkar , Santosh K. Singh

At present there is good agreement between the neutrino mass-squared difference determined from the solar neutrino data and the anti-neutrino mass-squared difference determined from the KamLAND reactor anti-neutrino experiment. However, the…

High Energy Physics - Phenomenology · Physics 2009-12-11 Bipin Singh koranga , Mohan Narayan , S Uma Sankar

We present an overview of CP violation in the Standard Model and Beyond, describing various possible sources of CP violation and how to search for them.

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