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The Diffuse Supernova Neutrino Background (DSNB) is the collection of neutrinos from all core-collapse supernovae (CCSNe) since the beginning of the universe. It is sensitive to the universe's stellar formation history, the fraction of…

High Energy Physics - Experiment · Physics 2025-01-16 Andrew D. Santos

A statistically significant detection of the diffuse supernova neutrino background (DSNB) is around the corner. To this purpose, we assess the contribution to the DSNB of magnetorotational collapses of massive stars, relying on a suite of…

High Energy Astrophysical Phenomena · Physics 2024-11-01 Pablo Martínez-Miravé , Irene Tamborra , Miguel Ángel Aloy , Martin Obergaulinger

Neutrinos are the second most abundant particles in the universe according to the Standard Model, yet they are the least likely to interact. This feature implies that detecting a neutrino can reveal valuable insights into its source. Among…

High Energy Astrophysical Phenomena · Physics 2025-10-27 Anna M. Suliga

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

The Diffuse Supernova Neutrino Background (DSNB) is the weak glow of MeV neutrinos and antineutrinos from distant core-collapse supernovae. The DSNB has not been detected yet, but the Super-Kamiokande (SK) 2003 upper limit on the electron…

High Energy Astrophysical Phenomena · Physics 2011-02-18 John F. Beacom

I review the physics of the Diffuse Supernova Neutrino flux (or Background, DSNB), in the context of future searches at the next generation of neutrino observatories. The theory of the DSNB is discussed in its fundamental elements, namely…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-24 Cecilia Lunardini

The diffuse supernova neutrino background (DSNB) is the constant flux of neutrinos and antineutrinos emitted by all past core collapses in the observable Universe. We study the potential to extract information on the neutrino lifetime from…

High Energy Physics - Phenomenology · Physics 2024-01-29 Pilar Iváñez-Ballesteros , M. Cristina Volpe

The diffuse supernova neutrino background (DSNB) is a powerful future tool to constrain core-collapse explosion mechanisms without observation of a nearby event, and the corresponding signal has been calculated for a variety of collapse…

High Energy Astrophysical Phenomena · Physics 2022-12-28 Alexander Libanov , Andrey Sharofeev

We present a new, state-of-the-art computation of the Diffuse Supernova Neutrino Background (DSNB), where we use neutrino spectra from multi-dimensional, multi-second core collapse supernova simulations - including both neutron-star and…

High Energy Astrophysical Phenomena · Physics 2026-01-21 Cecilia Lunardini , Tomoya Takiwaki , Tomoya Kinugawa , Shunsaku Horiuchi , Kei Kotake

The relic neutrinos from old supernova explosions are among the most ancient neutrino fluxes within experimental reach. Thus, the diffuse supernova neutrino background (DSNB) could teach us if neutrino masses were different in the past…

High Energy Physics - Phenomenology · Physics 2022-12-07 André de Gouvêa , Ivan Martinez-Soler , Yuber F. Perez-Gonzalez , Manibrata Sen

The Diffuse Supernova Neutrino Background (DSNB) in the MeV regime represents the cumulative cosmic neutrino emission, predominantly due to core collapse supernovae. We estimate the DSNB flux for different Star Formation Rate Density (SFRD)…

High Energy Astrophysical Phenomena · Physics 2020-01-22 Samalka Anandagoda , Dieter H. Hartmann , Marco Ajello , Abhishek Desai

We estimate the Diffuse Supernova Neutrino Background (DSNB) using the simulation results for neutron star-forming and black hole-forming stellar collapses from the Garching group. Scenarios with different distributions of black-hole…

High Energy Astrophysical Phenomena · Physics 2017-11-27 Alankrita Priya , Cecilia Lunardini

The diffuse supernova neutrino background (DSNB) created by stellar core-collapses throughout cosmic history is on the verge of discovery, with SK-Gd showing early deviations from the background expectation and JUNO starting to take data.…

High Energy Astrophysical Phenomena · Physics 2025-10-02 Tim Charissé , David Maksimović , George A. Parker , Michael Wurm

Flux spectrum, event rate, and experimental sensitivity are investigated for the diffuse supernova neutrino background (DSNB), which originates from past stellar collapses and is also known as a supernova relic neutrino background. For this…

High Energy Astrophysical Phenomena · Physics 2024-10-30 Ken'ichiro Nakazato , Ryuichiro Akaho , Yosuke Ashida , Takuji Tsujimoto

Neutrinos traveling over cosmic distances are ideal probes of new physics. We leverage on the approaching detection of the diffuse supernova neutrino background (DSNB) to explore whether, if the DSNB showed departures from theoretical…

High Energy Astrophysical Phenomena · Physics 2025-01-03 Miller MacDonald , Pablo Martínez-Miravé , Irene Tamborra

The Universe is awash with tens-of-MeV neutrinos of all species coming from all past core-collapse supernovae. These have never been observed, but this state of affairs will change in the near future. In the less than ten years, the…

High Energy Physics - Phenomenology · Physics 2021-01-04 André de Gouvêa , Ivan Martinez-Soler , Yuber F. Perez-Gonzalez , Manibrata Sen

The detection of the diffuse supernova neutrino background (DSNB) will preciously contribute to gauge the properties of the core-collapse supernova population. We estimate the DSNB event rate in the next-generation neutrino detectors,…

High Energy Astrophysical Phenomena · Physics 2018-05-30 Klaes Moller , Anna M. Suliga , Irene Tamborra , Peter B. Denton

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

Core-collapse supernovae are among the most energetic cosmic cataclysms. They are prodigious emitters of neutrinos and quite likely strong galactic sources of gravitational waves. Observation of both neutrinos and gravitational waves from…

High Energy Astrophysical Phenomena · Physics 2017-05-26 C. D. Ott , E. P. O'Connor , S. Gossan , E. Abdikamalov , U. C. T. Gamma , S. Drasco

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
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