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Signatures of neutrino and antineutrino signals from stellar collapse in heavy water detectors are contrasted with those in water detectors. The effects of mixing, especially due to the highly dense matter in the supernova core, are…

High Energy Physics - Phenomenology · Physics 2011-08-17 Gautam Dutta , D. Indumathi , M. V. N. Murthy , G. Rajasekaran

We discuss a new kind of astrophysical transport problem: the coherent evolution of neutrino flavor in core collapse supernovae. Solution of this problem requires a numerical approach which can simulate accurately the quantum mechanical…

Astrophysics · Physics 2009-06-09 Huaiyu Duan , George M. Fuller , J. Carlson

World-wide, several detectors currently running or nearing completion are sensitive to a core collapse supernova neutrino signal in the Galaxy. I will briefly describe the nature of the neutrino signal and then survey current and future…

High Energy Physics - Experiment · Physics 2009-10-31 Kate Scholberg

Neutrino interactions with lead produce neutrons in numbers that depend on neutrino energy and type. A detector based on lead perchlorate, for example, would be able to measure the energy deposited by electrons and gammas in coincidence…

Astrophysics · Physics 2011-07-19 S. R. Elliott

We investigate the neutrino flavor change effects due to neutrino self-interaction, shock wave propagation as well as matter effect on the neutrino-process of the core-collapsing supernova (CCSN). For the hydrodynamics, we use two models: a…

We present results of 3-neutrino flavor evolution simulations for the neutronization burst from an O-Ne-Mg core-collapse supernova. We find that nonlinear neutrino self-coupling engineers a single spectral feature of stepwise conversion in…

Astrophysics · Physics 2008-11-26 Huaiyu Duan , George M. Fuller , J. Carlson , Yong-Zhong Qian

It is shown that, if the "new neutrino" implied by the Reactor Neutrino Anomaly exists and is in fact characterized by the suggested relatively high mass squared difference and reasonably large mixing angle, it should clearly reveal itself…

High Energy Physics - Phenomenology · Physics 2011-09-28 J. D. Vergados , Y. Giomataris , Yu. N. Novikov

Neutrino oscillations are studied employing sources of low energy monoenergetic neutrinos following electron capture by the nucleus and measuring electron recoils. Since the neutrino energy is very low the oscillation length appearing in…

High Energy Physics - Phenomenology · Physics 2011-01-27 J. D. Vergados , Y. Giomataris , Yu. N. Novikov

Supernova (SN) neutrinos can excite the nuclei of various detector materials beyond their neutron emission thresholds through charged current (CC) and neutral current (NC) interactions. The emitted neutrons, if detected, can be a signal for…

High Energy Astrophysical Phenomena · Physics 2017-03-29 Abhijit Bandyopadhyay , Pijushpani Bhattacharjee , Sovan Chakraborty , Kamales Kar , Satyajit Saha

Supernova neutrinos can easily be detected by a spherical gaseous TPC detector measuring very low energy nuclear recoils. The expected rates are quite large for a neutron rich target since the neutrino nucleus neutral current interaction…

Astrophysics · Physics 2009-11-13 J. D. Vergados , Y. Giomataris

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

Neutrinos emitted during stellar core collapse up to their trapping phase carry information about the stage from which the Supernova explosion process initiates. The dominant $\nu_e$ emission mechanism is by electron capture on free protons…

Astrophysics · Physics 2009-10-30 F. K. Sutaria , A. Ray

Neutrino-neutrino refraction dominates the flavor evolution in core-collapse supernovae, neutron-star mergers, and the early universe. Ordinary neutrino flavor conversion develops on timescales determined by the vacuum oscillation…

High Energy Astrophysical Phenomena · Physics 2021-09-28 Irene Tamborra , Shashank Shalgar

Aims: We present neutrino light curves and energy spectra for two representative type Ia supernova explosion models: a pure deflagration and a delayed detonation. Methods: We calculate the neutrino flux from $\beta$ processes using nuclear…

Solar and Stellar Astrophysics · Physics 2011-03-29 A. Odrzywolek , T. Plewa

A long-standing problem in supernova physics is how to measure the total energy and temperature of $\nu_\mu$, $\nu_\tau$, $\bar{\nu}_\mu$, and $\bar{\nu}_\tau$. While of the highest importance, this is very difficult because these flavors…

Astrophysics · Physics 2008-11-26 John F. Beacom

The model-independent reconstruction of the energy spectra of $\overline{\nu}^{}_e$, $\nu^{}_e$ and $\nu^{}_x$ (i.e., $\nu^{}_\mu$, $\nu^{}_\tau$ and their antiparticles) from the future observation of a galactic core-collapse supernova…

High Energy Physics - Phenomenology · Physics 2019-07-11 Hui-Ling Li , Xin Huang , Yu-Feng Li , Liang-Jian Wen , Shun Zhou

We introduce the first oscillation-independent astrophysical method to probe non-standard neutrino interactions (NSI) in core-collapse supernovae. Using a self-consistent treatment of NSI effects in both supernova neutrino emission…

High Energy Physics - Phenomenology · Physics 2025-09-10 Angela R. Beatty , Anna M. Suliga , Volodymyr Takhistov

The impact of neutrino flavor conversion on the supernova mechanism is yet to be fully understood. We present multi-energy and multi-angle solutions of the neutrino quantum kinetic equations in three flavors, without employing any…

High Energy Astrophysical Phenomena · Physics 2025-12-15 Shashank Shalgar , Irene Tamborra

Although Galactic core-collapse supernovae (SNe) only happen a few times per century, every hour a vast number of explosions happen in the whole universe, emitting energy in the form of neutrinos, resulting in the diffuse supernova neutrino…

High Energy Physics - Phenomenology · Physics 2021-05-20 Zahra Tabrizi , Shunsaku Horiuchi

A core-collapse supernova releases the vast majority of the gravitational binding energy of its compact remnant in the form of neutrinos over an interval of a few tens of seconds. In the event of a core-collapse supernova within our galaxy,…

Instrumentation and Methods for Astrophysics · Physics 2019-11-20 N. B. Linzer , K. Scholberg