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Spatial separation of the wave packets (WPs) of neutrino mass eigenstates leads to decoherence and damping of neutrino oscillations. Damping can also be caused by finite energy resolution of neutrino detectors or, in the case of experiments…

High Energy Physics - Phenomenology · Physics 2022-11-30 Evgeny Akhmedov , Alexei Y. Smirnov

We discuss the analytical expression of the oscillation probabilities at low energy long baseline experiments, such as T2HK and T2HKK in the presence of nonstandard interactions (NSIs). We show that these experiments are advantageous to…

High Energy Physics - Phenomenology · Physics 2020-06-24 Osamu Yasuda

Neutrino oscillations change when in media in comparison to vacuum oscillations due to the scattering of neutrinos on matter constituents, electrons particularly. This can be easily described by introducing new effective matter mixing…

High Energy Physics - Phenomenology · Physics 2018-10-02 Tomas Nosek

There is renewed attention to whether we can observe the decoherence effect in neutrino oscillation due to the separation of wave packets with different masses in near-future experiments. As a contribution to this endeavor, we extend the…

High Energy Physics - Phenomenology · Physics 2023-10-18 Haruhi Mitani , Kin-ya Oda

We investigate the implications of decoherence induced by quantum spacetime properties on neutrino oscillation phenomena. We develop a general formalism where the evolution of neutrinos is governed by a Lindblad-type equation and we compute…

High Energy Physics - Phenomenology · Physics 2024-05-22 Vittorio D'Esposito , Giulia Gubitosi

We develop a theoretical framework for quantum field description of neutrino evolution in a medium, with a focus on quantum decoherence induced by neutrino scattering on fermions. By deriving a generalized Lindblad master equation that…

High Energy Physics - Phenomenology · Physics 2026-03-27 Konstantin Stankevich , Alexander Studenikin , Maksim Vyalkov

The triplet scalars $(\Delta=\Delta^{++},\Delta^{+},\Delta^{0})$, utilized in the so-called Type-II seesaw model to explain the lightness of neutrinos, would generate nonstandard interactions (NSI) for neutrino propagating in matter. We…

High Energy Physics - Phenomenology · Physics 2018-06-06 Katri Huitu , Timo J. Kärkkäinen , Jukka Maalampi , Sampsa Vihonen

We discuss the phenomenology of damping signatures in the neutrino oscillation probabilities, where either the oscillating terms or the probabilities can be damped. This approach is a possibility for tests of non-oscillation effects in…

High Energy Physics - Phenomenology · Physics 2009-11-11 Mattias Blennow , Tommy Ohlsson , Walter Winter

Using numerical calculations, we compare the collective transition probabilities of many spins in random magnetic fields, subject to either frequent projective measurements, frequent phase modulations, or a mix of modulations and…

Quantum Physics · Physics 2014-08-04 Wenxian Zhang , A. G. Kofman , Jun Zhuang , J. Q. You , Franco Nori

Generalized uncertainty principles are effective changes to the Heisenberg uncertainty principle that emerge in several quantum gravity models. In the present letter, we study the consequences that two classes of these modifications yield…

High Energy Physics - Phenomenology · Physics 2025-01-23 Ioannis D. Gialamas , Timo J. Kärkkäinen , Luca Marzola

Understanding the physics of neutrinos is of paramount relevance for the development of high energy physics, cosmology and astrophysics, thanks to their characteristics and phenomenology. In particular, the property of changing flavor while…

High Energy Physics - Experiment · Physics 2018-12-13 Mario A. Acero

We point out three apparent inconsistencies in the treatment of oscillation coherence from reactor neutrino and source neutrino experiments in recent paper "Damping of neutrino oscillations, decoherence and the lengths of neutrino wave…

High Energy Physics - Phenomenology · Physics 2022-09-02 B. J. P. Jones

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

Considering neutrinos as time-like leptons one may estimate the three-body decay probability of muon neutrinos in long base-line accelerator experiments. In the extreme assumption of time-space symmetry the absolute value of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vo Van Thuan , Nguyen Tuan Anh , Le Huu Thang

The impact of neutrino mixing, refraction and absorption on high-energy neutrino propagation through a thick medium is studied using the MSW evolution equation with complex indices of refraction. It is found that, owing to the mixing with…

High Energy Physics - Phenomenology · Physics 2009-11-07 Vadim A. Naumov

Quantum mechanical interactions between neutrinos and matter along the path of propagation, the Wolfenstein matter effect, are of particular importance for the upcoming long-baseline neutrino oscillation experiments, specifically the Deep…

High Energy Physics - Phenomenology · Physics 2018-07-25 Kevin J. Kelly , Stephen J. Parke

Discovering new neutrino interactions would provide evidence of physics beyond the Standard Model. We focus on flavor-dependent long-range neutrino interactions mediated by ultra-light mediators (masses below $10^{-10}$ eV) from…

High Energy Physics - Phenomenology · Physics 2025-01-22 Masoom Singh , Mauricio Bustamante , Sanjib Kumar Agarwalla

We study the interplay between coherence and mixedness in meson and neutrino systems. The dynamics of the meson system is treated using the open quantum system approach taking into account the decaying nature of the system. Neutrino…

High Energy Physics - Phenomenology · Physics 2019-02-05 Khushboo Dixit , Javid Naikoo , Subhashish Banerjee , Ashutosh Kumar Alok

In curved spacetime, neutrinos experience an extra contribution to their effective Hamiltonian coming from a torsion-induced four-fermion interaction that is diagonal in mass basis and also causes neutrino mixing while propagating through…

High Energy Physics - Phenomenology · Physics 2025-02-20 Riya Barick , Amitabha Lahiri

Consequences of a new force mediated by a light scalar particle for neutrino oscillation experiments are considered. Such a force could give rise to neutrino masses and mixings whose matter dependence is much more significant than the MSW…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kathryn M. Zurek