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Neutrino experiments can be considered sensitive tools to test Lorentz and CPT invariance. Taking advantage of the great variety of neutrino experiments, including neutrino oscillations, weak decays, and astrophysical neutrinos, the generic…

High Energy Physics - Phenomenology · Physics 2016-10-31 Jorge S. Diaz

We consider neutrino oscillations in the minimal Standard-Model Extension describing general Lorentz and CPT violation. Among the models without neutrino mass differences is one with two degrees of freedom that reproduces most major…

High Energy Physics - Phenomenology · Physics 2009-07-09 Alan Kostelecky , Matthew Mewes

We examine the scope of the MOMENT experiment in the context of CP violation searches with the presence of extra eV scale sterile neutrino. MOMENT is a proposed medium baseline neutrino oscillation experiment using muon beams for neutrinos…

High Energy Physics - Phenomenology · Physics 2025-10-15 Kiran Sharma , Sudhanwa Patra

The observation of coherent elastic neutrino nucleus scattering (CE$\nu$NS) by the COHERENT collaboration in 2017 has opened a new window to both test Standard Model predictions at relatively low energies and probe new physics scenarios.…

High Energy Physics - Phenomenology · Physics 2021-05-05 Peter B. Denton , Julia Gehrlein

We investigate the phenomenological constraints on a model where, besides the standard model Higgs sector, there is an effective new strong interaction acting on the third generation of quarks and characterized by a $\theta$-like term. This…

High Energy Physics - Phenomenology · Physics 2009-11-07 G. C. Branco , D. Delepine , R. Gonzalez Felipe

Measurement of $CP$-violating observables in semileptonic decays is a sensitive null-test of the Standard Model: any $CP$ violation would be an unambiguous sign of New Physics effects. The model-independent technique to measure parity and…

High Energy Physics - Phenomenology · Physics 2023-07-12 Vlad Dedu , Anton Poluektov

We discuss the impact of the true value of the CP phase on the mass hierarchy, CP violation, and CP precision measurements at neutrino superbeams and related experiments. We we use a complete statistical experiment simulation including…

High Energy Physics - Phenomenology · Physics 2009-11-10 Walter Winter

In current searches for D0 anti-D0 mixing, the time evolution of ``wrong-sign'' decays is used to distinguish between a potential mixing signal and the dominant background from doubly-Cabibbo-suppressed decays. A term proportional to…

High Energy Physics - Phenomenology · Physics 2010-11-01 G. Blaylock , Abe Seiden , Y. Nir

At present, there are discrepancies with the predictions of the standard model in ${\bar B}^0 \to D^{*+} \ell^- {\bar\nu}_\ell$ decays, hinting at the presence of new physics (NP) in $b \to c \tau^- {\bar\nu}$. Various NP models have been…

High Energy Physics - Phenomenology · Physics 2019-06-20 David London

The leptonic CP-violating phase $\delta$ can be measured with a Neutrino Factory with $2 \times 10^{20} $ useful muons per year, if the solar neutrino problem is solved by the LMA-MSW solution, with $\Delta m_{12}^2 \ge 2 \times 10^{-5}$…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. Donini

In the minimal left-right symmetric model, there are only two intrinsic CP violating phases to account for all CP violation in both the quark and lepton sectors, if CP is broken spontaneously by the complex phases in the VEV's of the scalar…

High Energy Physics - Phenomenology · Physics 2009-11-10 Mu-Chun Chen , K. T. Mahanthappa

CP violation in the K system is pedagogically reviewed. We discuss its manifestations in the neutral K meson systems, in rare K meson decays and in decays of charged K mesons. Results from classical experiments, and perspectives for…

High Energy Physics - Experiment · Physics 2015-06-25 Juliet Lee-Franzini , Paolo Franzini

We discuss a simple 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 atmospheric and…

High Energy Physics - Phenomenology · Physics 2007-05-23 Harald Fritzsch , Zhi-zhong Xing

The likelihood ratio statistic, with its asymptotic $\chi^2$ distribution at regular model points, is often used for hypothesis testing. At model singularities and boundaries, however, the asymptotic distribution may not be $\chi^2$, as…

Statistics Theory · Mathematics 2018-06-25 Jonathan D. Mitchell , Elizabeth S. Allman , John A. Rhodes

We perform realistic simulations of the current and future long baseline experiments such as T2K, NO$\nu$A, DUNE and T2HK in order to determine their ultimate potential in probing neutrino oscillation parameters. We quantify the potential…

High Energy Physics - Phenomenology · Physics 2017-09-27 Sabya Sachi Chatterjee , Pedro Pasquini , J. W. F. Valle

We study the impact of unitarity violation on the sensitivity of the leptonic CP phase, $\delta_{CP}$, considering the next generation of long-baseline neutrino experiments, Hyper-Kamiokande and DUNE. By simulating near and far detectors…

High Energy Physics - Phenomenology · Physics 2025-11-18 Ana Maria Garcia Trzeciak , Hiroshi Nunokawa , Alexander Arguello Quiroga

In this short lecture, we discuss some basic phenomenological aspects of CP and T violation in neutrino oscillation. Using CP/T trajectory diagrams in the bi-probability space, we try to sketch out some essential features of the interplay…

High Energy Physics - Phenomenology · Physics 2009-11-10 Hisakazu Minakata , Hiroshi Nunokawa , Stephen Parke

Stimulated by the idea of PRISM, a very high intensity muon ring with rather low energy, we consider possibilities of observing CP-violation effects in neutrino oscillation experiments. More than 10% of CP-violation effect can be seen…

High Energy Physics - Phenomenology · Physics 2014-11-17 Masafumi Koike , Joe Sato

Precise tests of Lorentz invariance can be executed using neutrino oscillations, which can provide sensitive measurements of suppressed signals of new physics. This talk describes the neutrino sector of the Standard-Model Extension, which…

High Energy Physics - Phenomenology · Physics 2009-09-30 Jorge S. Diaz

We explore as clearly as possible the features of neutrino oscillation which are relevant for measurements of the CP violating Kobayashi-Maskawa phase delta and the sign of \Delta m^2_{13}. We focus on the so called low-energy option and…

High Energy Physics - Phenomenology · Physics 2010-02-03 Hisakazu Minakata , Hiroshi Nunokawa