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Neutrinos and antineutrinos of all three flavours are emitted during the post bounce phase of a core collapse supernova with $\numu/\nutau (\anumu/\anutau)$ having average energies more than that of $\nue(\anue)$. They can be detected by…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sandhya Choubey , Debasish Majumdar , Kamales Kar

Massive stars live fast and die young. They shine furiously for a few million years, during which time they synthesize most of the heavy elements in the universe in their cores. They end by blowing themselves up in a powerful explosion…

High Energy Astrophysical Phenomena · Physics 2011-12-21 Anders Jerkstrand

In the late stages of nuclear burning for massive stars ($M>8~M_{\sun}$), the production of neutrino-antineutrino pairs through various processes becomes the dominant stellar cooling mechanism. As the star evolves, the energy of these…

The detection of neutrinos from massive stellar collapses can teach us a lot not only about source objects but also about microphysics working deep inside them. In this study we discuss quantitatively the possibility to extract information…

High Energy Astrophysical Phenomena · Physics 2010-05-12 Ken'ichiro Nakazato , Kohsuke Sumiyoshi , Hideyuki Suzuki , Shoichi Yamada

We introduce a novel parameterization of supernova neutrino energy spectra with a clear physical motivation. Its central parameter, $\tau(t)$, quantifies the characteristic thermal-diffusion area during the explosion. When applied to the…

High Energy Astrophysical Phenomena · Physics 2025-11-21 Haihao Shi , Zhenyang Huang , Junda Zhou , Guoliang Lü , Xuefei Chen

When the next galactic core-collapse supernova occurs, we must be ready to obtain as much information as possible. Although many present and future detectors are well equipped to detect $\overline{\nu}_{\mathrm{e}}$ and $\nu_x$ neutrinos,…

High Energy Physics - Phenomenology · Physics 2021-07-01 A. Gallo Rosso

We examine the prospects for detecting supernova $\nu_e$ in JUNO, RENO-50, LENA, or other approved or proposed large liquid scintillator detectors. The main detection channels for supernova $\nu_e$ in a liquid scintillator are its elastic…

High Energy Physics - Phenomenology · Physics 2014-12-30 Ranjan Laha , John F. Beacom , Sanjib Kumar Agarwalla

Presently, there are several experimental setups dedicated to rare event searches, such as dark matter interactions or double beta decay, in the building or commissioning phases. These experiments often use large mass detectors and have…

High Energy Astrophysical Phenomena · Physics 2012-11-08 Carlos Martinez Amaya , Matteo Biassoni

Neutrinos from core collapse supernovae can be emitted from a rapidly accreting disk surrounding a black hole, instead of the canonical proto-neutron star. For Galactic events, detector count rates are considerable and in fact can be in the…

Astrophysics · Physics 2008-11-26 G. C. McLaughlin , R. Surman

The diffuse cosmic supernova neutrino background (DSNB) is observational target of the gadolinium-loaded Super-Kamiokande (SK) detector and the forthcoming JUNO and Hyper-Kamiokande detectors. Current predictions are hampered by our still…

High Energy Astrophysical Phenomena · Physics 2021-03-24 Daniel Kresse , Thomas Ertl , Hans-Thomas Janka

I review the status and perspectives of the research on the diffuse flux of (core collapse) supernova neutrinos (DF). In absence of a positive signal, several upper bounds exist in different detection channels. Of these, the strongest is…

Astrophysics · Physics 2007-05-23 Cecilia Lunardini

Dark photons, hypothetical feebly interacting massive vector bosons, appear in many extensions of the Standard Model. This study investigates their production and subsequent decay during supernova explosions. We demonstrate that the decay…

High Energy Physics - Phenomenology · Physics 2024-05-01 Vsevolod Syvolap , Oleg Ruchayskiy

After two decades of measurements, neutrino physics is now advancing into the precision era. Withthe long-baseline experiments designed to tackle current open questions, a new query arises: can atmospheric neutrino experiments also play a…

High Energy Physics - Phenomenology · Physics 2024-01-22 C. A. Argüelles , P. Fernández , I. Martínez-Soler , M. Jin

Under the fossil field hypothesis of the origin of magnetar magnetic fields, the magnetar inherits its magnetic field from its progenitor. We show that during the supernova of such a progenitor, protons may be accelerated to \sim 10^4 GeV…

Astrophysics · Physics 2009-11-13 Shunsaku Horiuchi , Yudai Suwa , Hajime Takami , Shin'ichiro Ando , Katsuhiko Sato

The IceCube Neutrino Observatory is highly sensitive to neutrino bursts of $\mathcal{O}$(10) MeV energy that are would be generated by core collapse supernovae in our Galaxy. It will resolve temporal structures in supernova light curves…

High Energy Astrophysical Phenomena · Physics 2021-08-23 Alexander Fritz , David Kappesser

Condensed Abstract: We present an extensive study of the inception of supernova explosions by following the evolution of the cores of two massive stars (15 Msun and 25 Msun) in two dimensions. Our calculations begin at the onset of core…

Astrophysics · Physics 2009-10-22 Marc Herant , Willy Benz , W. Raphael Hix , Chris F. Fryer , Stirling Colgate

The smallest of the four detectors which claim to have observed neutrinos from SN 1987a registered the events more than 4 h earlier than the other three ones. This claim is not usually accepted because it is difficult to understand that the…

High Energy Astrophysical Phenomena · Physics 2015-09-02 Gerd Schatz

The Diffuse Supernova Neutrino Background (DSNB) provides an immediate opportunity to study the emission of MeV thermal neutrinos from core-collapse supernovae. The DSNB is a powerful probe of stellar and neutrino physics, provided that the…

Astrophysics · Physics 2009-05-01 Shunsaku Horiuchi , John F. Beacom , Eli Dwek

I calculate the diffuse flux of electron antineutrinos from all supernovae using the information on the neutrino spectrum from SN987A and the information on the rate of supernovae from direct supernova observations. The interval of flux…

Astrophysics · Physics 2009-11-13 Cecilia Lunardini

Matter effects on neutrino oscillations in both, a supernova and the Earth, change the observed supernova neutrino spectra. We calculate the expected number of supernova neutrino interactions for ICARUS, SK and SNO detectors as a function…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. Bekman , J. Holeczek , J. Kisiel