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We examine the prospects for determining the neutrino mixing matrix and for observing CP and T violation in neutrino oscillations in four-neutrino models. We focus on a general class of four-neutrino models with two pairs of nearly…

High Energy Physics - Phenomenology · Physics 2009-09-15 V. Barger , Yuan-Ben Dai , K. Whisnant , Bing-Lin Young

Deep neural networks provide flexible frameworks for learning data representations and functions relating data to other properties and are often claimed to achieve 'super-human' performance in inferring relationships between input data and…

Materials Science · Physics 2021-05-26 Keith T. Butler , Manh Duc Le , Jeyarajan Thiyagalingam , Toby G. Perring

Multi-dimensional parameter spaces are commonly encountered in physics theories that go beyond the Standard Model. However, they often possess complicated posterior geometries that are expensive to traverse using techniques traditional to…

Machine Learning · Computer Science 2025-02-21 Dorian W. P. Amaral , Shixiao Liang , Juehang Qin , Christopher Tunnell

We discuss whether massive neutrinos (either active or sterile) can reconcile some of the tensions within cosmological data that have been brought into focus by the recently released {\it Planck} data. We point out that a discrepancy is…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Richard A. Battye , Adam Moss

We determine the sensitivities of short-baseline coherent elastic neutrino-nucleus scattering (CE$\nu$NS) experiments using a pion decay at rest neutrino source as a probe for nonunitarity in the lepton sector, as expected in low-scale…

High Energy Physics - Phenomenology · Physics 2021-01-04 O. G. Miranda , D. K. Papoulias , O. Sanders , M. Tórtola , J. W. F. Valle

The presence of nonstandard neutrino interactions (NSI) has a large effect on the precision measurements at next generation neutrino oscillation experiments. Other type of experiments are needed to constrain the NSI parameter space. We…

High Energy Physics - Phenomenology · Physics 2021-09-08 Jiajun Liao , Yu Zhang

We present a new analysis of non-universal and flavor changing non-standard neutrino interactions (NSI) in \nu_e e or \bar{\nu}_e e scattering. Our global analysis of these process includes all relevant experiments, such as the most recent…

High Energy Physics - Phenomenology · Physics 2009-09-17 J. Barranco , O. G. Miranda , C. A. Moura , J. W. F. Valle

Cosmological determinations of the number of relativistic neutrino species, $N^{ }_{\rm eff}$, are becoming increasingly accurate, and further improvements are expected both from CMB and BBN data. Given this context, we update the…

High Energy Physics - Phenomenology · Physics 2026-02-16 M. Escudero , G. Jackson , M. Laine , S. Sandner

Inverse problems and, in particular, inferring unknown or latent parameters from data are ubiquitous in engineering simulations. A predominant viewpoint in identifying unknown parameters is Bayesian inference where both prior information…

Computation · Statistics 2022-08-31 Vahid Keshavarzzadeh , Robert M. Kirby , Akil Narayan

A sterile neutrino is a well motivated minimal new physics model that leaves an imprint in neutrino oscillations. Over the last two decades, a number of hints pointing to a sterile neutrino have emerged, many of which are pointing near…

High Energy Physics - Phenomenology · Physics 2022-08-03 Peter B. Denton

We present a new experimental method for measuring the process of Coherent Elastic Neutrino Nucleus Scattering (CENNS). This method uses a detector situated transverse to a high energy neutrino beam production target. This detector would be…

Recent $\nu_e$ appearance data from the Mini Booster Neutrino Experiment (MiniBooNE) are in support of the excess of events reported by the Liquid Scintillator Neutrino Detector (LSND), which provides an indirect hint for the existence of…

High Energy Physics - Phenomenology · Physics 2020-07-23 Rudra Majhi , Soumya C , Rukmani Mohanta

We study the oscillations of neutrinos in a model in which the neutrino is coupled to a localized, idealized source and detector. By varying the spatial and temporal resolution of the source and detector we are able to model the full range…

High Energy Physics - Phenomenology · Physics 2014-11-17 Ken Kiers , Nathan Weiss

We analyze the ability of galaxy and CMB lensing surveys to constrain massive neutrinos and new models of dark radiation. We present a Fisher forecast analysis for neutrino mass constraints with the LSST galaxy survey and the CMB S4 survey.…

Cosmology and Nongalactic Astrophysics · Physics 2018-01-31 Arka Banerjee , Bhuvnesh Jain , Neal Dalal , Jessie Shelton

The observation of the Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$NS) process using reactor antineutrinos offers a unique opportunity to probe the Standard Model and explore Beyond the Standard Model scenarios. This study reports…

High Energy Physics - Phenomenology · Physics 2025-02-14 M. Alpízar-Venegas , L. J. Flores , Eduardo Peinado , E. Vázquez-Jáuregui

Charged-Current Quasi-Elastic (CCQE) neutrino scattering is the signal channel for sterile neutrino oscillation experiments. Recent cross-section measurements have made it clear that the current understanding of this channel in the few-GeV…

High Energy Physics - Phenomenology · Physics 2015-01-12 Patrick Stowell , Callum Wilkinson , Susan Cartwright

The investigation of the oscillation pattern induced by the sterile neutrinos might determine the oscillation parameters, and at the same time, allow to probe CPT symmetry in the leptonic sector through neutrino-antineutrino mass…

High Energy Physics - Experiment · Physics 2015-09-23 M. V. Smirnov , K. K. Loo , Yu. N. Novikov , W. H. Trzaska , M. Wurm

The simplest Standard Model extension to explain neutrino masses involves the addition of right-handed neutrinos. At some level, this extension will impact neutrino oscillation searches. In this work we explore the differences and…

High Energy Physics - Phenomenology · Physics 2017-05-24 Mattias Blennow , Pilar Coloma , Enrique Fernandez-Martinez , Josu Hernandez-Garcia , Jacobo Lopez-Pavon