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In this proceeding we present predictions of the effective Majorana mass $|m_{\beta\beta}|$ in neutrinoless double-$\beta$ decay for the standard $3\nu$ mixing case and for the 3+1 neutrino mixing case indicated by the short-baseline…

High Energy Physics - Phenomenology · Physics 2016-06-22 C. Giunti , E. M. Zavanin

We perform an updated analysis of long-baseline accelerator data in the framework of neutrino oscillations in presence of invisible neutrino decay. We analyze data from T2K, NOvA and MINOS/MINOS+ and show that the combined analysis of all…

High Energy Physics - Phenomenology · Physics 2024-03-26 Christoph A. Ternes , Giulia Pagliaroli

Invisible neutrino decay modes are difficult to target at laboratory experiments, and current bounds on such decays from solar neutrino and neutrino oscillation experiments are somewhat weak. It has been known for some time that Cosmology…

High Energy Physics - Phenomenology · Physics 2020-01-20 Miguel Escudero , Malcolm Fairbairn

The Neutrino Experiment with a Xenon TPC (NEXT) searches for the neutrinoless double-beta decay of Xe-136 using high-pressure xenon gas TPCs with electroluminescent amplification. A scaled-up version of this technology with about 1 tonne of…

Instrumentation and Detectors · Physics 2021-02-23 NEXT Collaboration , C. Adams , V. Álvarez , L. Arazi , I. J. Arnquist , C. D. R Azevedo , K. Bailey , F. Ballester , J. M. Benlloch-Rodríguez , F. I. G. M. Borges , N. Byrnes , S. Cárcel , J. V. Carrión , S. Cebrián , E. Church , C. A. N. Conde , T. Contreras , A. A. Denisenko , G. Díaz , J. Díaz , J. Escada , R. Esteve , R. Felkai , L. M. P. Fernandes , P. Ferrario , A. L. Ferreira , F. Foss , E. D. C. Freitas , Z. Freixa , J. Generowicz , A. Goldschmidt , J. J. Gómez-Cadenas , R. González , D. González-Díaz , S. Gosh , R. Guenette , R. M. Gutiérrez , J. Haefner , K. Hafidi , J. Hauptman , C. A. O. Henriques , J. A. Hernando Morata , P. Herrero , V. Herrero , J. Ho , Y. Ifergan , B. J. P. Jones , M. Kekic , L. Labarga , A. Laing , P. Lebrun , N. López-March , M. Losada , R. D. P. Mano , J. Martín-Albo , A. Martínez , M. Martínez-Vara , G. Martínez-Lema , A. D. McDonald , Z. E. Meziani , F. Monrabal , C. M. B. Monteiro , F. J. Mora , J. Muñoz Vidal , C. Newhouse , P. Novella , D. R. Nygren , E. Oblak , B. Palmeiro , A. Para , J. Pérez , M. Querol , A. Redwine , J. Renner , L. Ripoll , I. Rivilla , Y. Rodríguez García , J. Rodríguez , C. Rogero , L. Rogers , B. Romeo , C. Romo-Luque , F. P. Santos , J. M. F. dos Santos , A. Simón , M. Sorel , C. Stanford , J. M. R. Teixeira , P. Thapa , J. F. Toledo , J. Torrent , A. Usón , J. F. C. A. Veloso , T. T. Vuong , R. Webb , R. Weiss-Babai , J. T. White , K. Woodruff , N. Yahlali

To quantitatively assess the impact of an eV-mass sterile neutrino on the neutrinoless double-beta ($0\nu \beta \beta$) decays, we calculate the posterior probability distribution of the relevant effective neutrino mass $|m^\prime_{ee}|$ in…

High Energy Physics - Phenomenology · Physics 2019-09-04 Guo-yuan Huang , Shun Zhou

Double beta decay is indispensable to solve the question of the neutrino mass matrix together with $\nu$ oscillation experiments. The most sensitive experiment - since eight years the HEIDELBERG-MOSCOW experiment in Gran-Sasso - already…

High Energy Physics - Phenomenology · Physics 2016-09-06 H. V. Klapdor-Kleingrothaus

Beam neutrino oscillation experiments typically employ only one detector at a certain baseline, apart from the near detector that measures the unoscillated neutrino flux at the source. Lately, there have been discussions of having detectors…

High Energy Physics - Phenomenology · Physics 2019-07-03 Minseok Cho , YeolLin ChoeJo , Hye-Sung Lee , Young-Min Lee , Sushant K. Raut

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 investigate the baseline range in which the $\theta_{23}$ degeneracy in neutrino oscillation probabilities is absent for fixed values of $\theta_{13}$ and CP violation phase $\delta_{\rm CP}$. We begin by studying sensitivities of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Guey-Lin Lin , Yoshiaki Umeda

We have studied the constraints imposed by the results of neutrino oscillation experiments on the effective Majorana mass |<m>| that characterizes the contribution of Majorana neutrino masses to the matrix element of neutrinoless…

High Energy Physics - Phenomenology · Physics 2016-08-25 S. M. Bilenky , C. Giunti , C. W. Kim , M. Monteno

Neutrinoless double beta decay ($0\nu\beta\beta$) is one of the most sensitive approaches to test particle physics beyond the standard model. During the last years, besides the most restrictive limit on the effective Majorana neutrino mass,…

High Energy Physics - Phenomenology · Physics 2015-06-25 H. Päs

The T2K collaboration has combined the $\nu_{\mu}$ disappearance and $\nu_e $appearance data in a three-flavor neutrino oscillation analysis. A Markov chain Monte Carlo results in estimates of the oscillation parameters and 1D 68% Bayesian…

High Energy Physics - Experiment · Physics 2019-08-14 Patrick de Perio

Neutrinoless double beta decay belongs to the most sensitive tools for the search of new physics beyond the standard model. The recent half life limit of the Heidelberg-Moscow experiment implies restrictive bounds on the absolute mass scale…

High Energy Physics - Phenomenology · Physics 2016-11-03 H. V. Klapdor-Kleingrothaus , H. Päs

In this article, we review the status of the tension between the long-baseline accelerator neutrino experiments T2K and NO$\nu$A. The tension arises mostly due to the mismatch in the appearance data of the two experiments. We explain how…

High Energy Physics - Phenomenology · Physics 2022-02-11 Ushak Rahaman , Soebur Razzaque , S. Uma Sankar

This paper explores the effects of changes in matter density profiles on neutrino oscillation probabilities, and whether these could potentially be seen by the future Hyper-Kamiokande long-baseline oscillation experiment (T2HK). The…

High Energy Physics - Phenomenology · Physics 2020-04-29 Stephen F. King , Susana Molina Sedgwick , Stephen J. Parke , Nick W. Prouse

In the near future, the neutrinoless double-beta ($0\nu\beta\beta$) decay experiments will hopefully reach the sensitivity of a few ${\rm meV}$ to the effective neutrino mass $|m^{}_{\beta\beta}|$. In this paper, we tentatively examine the…

High Energy Physics - Phenomenology · Physics 2021-03-12 Guo-yuan Huang , Shun Zhou

We present accurate predictions of the effective Majorana mass $|m_{\beta\beta}|$ in neutrinoless double-$\beta$ decay in the standard case of $3\nu$ mixing and in the case of 3+1 neutrino mixing indicated by the reactor, Gallium and LSND…

High Energy Physics - Phenomenology · Physics 2015-09-02 C. Giunti , E. M. Zavanin

The search for neutrino-less double-beta decay has been a very active field of research in the last decade. Neutrino-less double-beta decay may answer essential open questions in neutrino physics. While double-beta decay accompanied by the…

Nuclear Experiment · Physics 2019-08-14 Delia Tosi

The ESS$\nu$SB project proposes to base a neutrino ''Super Beam'' of unprecedented luminosity at the European Spallation Source. The original proposal identified the second peak of the oscillation probability as the optimal to maximize the…

High Energy Physics - Phenomenology · Physics 2020-09-15 M. Blennow , E. Fernandez-Martinez , T. Ota , S. Rosauro-Alcaraz

Present global fits of world neutrino data hint towards non-maximal $\theta_{23}$ with two nearly degenerate solutions, one in the lower octant ($\theta_{23} <\pi/4$), and the other in the higher octant ($\theta_{23} >\pi/4$). This octant…

High Energy Physics - Phenomenology · Physics 2017-01-25 Sanjib Kumar Agarwalla , Sabya Sachi Chatterjee , Antonio Palazzo