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We study how the eightfold-degeneracy in the ($\theta_{13},\delta$) plane observed in $\gamma \sim 100$ $\beta$-beams can be reduced by periodically changing the ions in the storage ring. This ``ions cocktail'' allows to change the neutrino…

High Energy Physics - Phenomenology · Physics 2008-04-17 E. Fernandez-Martinez

Next-generation long-baseline electron neutrino appearance experiments will seek to discover CP violation, determine the mass hierarchy and resolve the $\theta_{23}$ octant. In light of the recent precision measurements of $\theta_{13}$, we…

High Energy Physics - Experiment · Physics 2015-03-25 M. Bass , M. Bishai , D. Cherdack , M. Diwan , Z. Djurcic , J. Hernandez , B. Lundberg , V. Paolone , X. Qian , R. Rameika , L. Whitehead , R. J. Wilson , E. Worcester , G. Zeller

We show that for a neutrino factory baseline of $L \sim 7300 km - 7 600 km$ a ``clean'' measurement of $\sin^2 2 \theta_{13}$ becomes possible, which is almost unaffected by parameter degeneracies. We call this baseline "magic" baseline,…

High Energy Physics - Phenomenology · Physics 2009-11-10 Patrick Huber , Walter Winter

The purpose of this paper is to provoke a discussion about the right next step in accelerator-based neutrino physics. In the next five years many experiments will be done to determine the neutrino mixing parameters. However, the small…

High Energy Physics - Phenomenology · Physics 2007-05-23 Burton Richter

The DeepCore sub-detector of the IceCube Neutrino Observatory provides access to neutrinos with energies above approximately 5 GeV. Data taken between 2012-2021 (3,387 days) are utilized for an atmospheric $\nu_\mu$ disappearance analysis…

High Energy Physics - Experiment · Physics 2024-05-06 IceCube Collaboration

The three kinds of parameter degeneracy in neutrino oscillation, the intrinsic, sign and octant degeneracy, form an eight-fold degeneracy. The nature of this eight-fold degeneracy can be visualized on the ($\sin^22\theta_{13}$,…

High Energy Physics - Phenomenology · Physics 2024-01-09 Sho Sugama , Osamu Yasuda

We present a general formalism for extracting information on the fundamental parameters associated with neutrino masses and mixings from two or more long baseline neutrino oscillation experiments. This formalism is then applied to the…

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

In the light of KamLAND data just released, we reanalyze and update the constraints on neutrino masses and mixing parameters, the most general ones that can be derived in three-flavor mixing scheme of neutrinos with use of the bounds…

High Energy Physics - Phenomenology · Physics 2014-11-17 Hisakazu Minakata , Hiroaki Sugiyama

Neutrino oscillations are clear evidence for physics beyond the standard model. The goal of next-generation neutrino oscillation experiments is to find a non-zero $\theta_{13}$, the last mixing matrix element for which we only know an upper…

High Energy Physics - Experiment · Physics 2008-05-19 Teppei Katori

In this letter, we analyze for the first time the physics reach in terms of sensitivity to leptonic CP violation of the proposed MuOn-decay MEdium baseline NeuTrino beam (MOMENT) experiment, a novel neutrino oscillation facility that would…

High Energy Physics - Phenomenology · Physics 2016-05-04 Mattias Blennow , Pilar Coloma , Enrique Fernandez-Martinez

T2K is a long baseline neutrino experiment which exploits a neutrino and antineutrino beam at JPARC to perform precision measurements of neutrino oscillation parameters $\Delta {\rm m}^2_{\rm 32}$, $\sin^2 \theta_{23}$ (besides the…

High Energy Physics - Experiment · Physics 2022-07-15 Ajmi Ali

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

Having a far detector in Korea for the J-PARC neutrino beam in addition to one at Kamioka has been shown to be a powerful way to lift neutrino parameter ($\Delta m^2$ and mixing angles) degeneracies. In this talk, I report the sensitivity…

High Energy Physics - Phenomenology · Physics 2008-01-29 N. Cipriano Ribeiro , T. Kajita , P. Ko , H. Minakata , S. Nakayama , H. Nunokawa

Our knowledge on the active 3$\nu$ mixing angles ($\theta_{12}$, $\theta_{13}$, and $\theta_{23}$) and the CP phase $\delta_{\mathrm{CP}}$ is becoming accurate day-by-day enabling us to test the unitarity of the leptonic mixing matrix with…

High Energy Physics - Phenomenology · Physics 2022-08-16 Sanjib Kumar Agarwalla , Sudipta Das , Alessio Giarnetti , Davide Meloni

Neutral long-lived particles (LLPs) are highly motivated by many BSM scenarios, such as theories of supersymmetry, baryogenesis, and neutral naturalness, and present both tremendous discovery opportunities and experimental challenges for…

High Energy Physics - Phenomenology · Physics 2017-01-04 Andrea Coccaro , David Curtin , H. J. Lubatti , Heather Russell , Jessie Shelton

We study the constraints on neutrino masses that could be derived from the observation of a Galactic supernova neutrino signal with present and future neutrino detectors. Our analysis is based on a recently proposed method that uses the…

High Energy Physics - Phenomenology · Physics 2010-04-05 Enrico Nardi , Jorge I. Zuluaga

We consider the interplay of fundamental and matter-induced T violation effects in neutrino oscillations in matter. After discussing the general features of these effects we derive a simple approximate analytic expression for the…

High Energy Physics - Phenomenology · Physics 2010-05-28 E. Kh. Akhmedov , P. Huber , M. Lindner , T. Ohlsson

In the context of three-flavor neutrino mixing, we present a thorough study of the phenomenological constraints applicable to three observables sensitive to absolute neutrino masses: The effective neutrino mass in Tritium beta decay…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Marrone , A. Melchiorri , A. Palazzo , P. Serra , J. Silk

Recent neutrino oscillation results have shown that the existing long baseline experiments have some sensitivity to the effects of CP violation in the neutrino sector. This sensitivity is currently statistically limited, but the next…

Instrumentation and Detectors · Physics 2019-08-21 Mark Scott

We examine how light neutrinos coming from distant active galactic nuclei (AGN) and similar high energy sources may be used as tools to probe non-standard physics. In particular we discuss how studying the energy spectra of each neutrino…

High Energy Physics - Phenomenology · Physics 2014-11-21 Atri Bhattacharya , Sandhya Choubey , Raj Gandhi , Atsushi Watanabe