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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 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 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 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

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

Neutrinos being massive could undergo non-radiative decay, a property for which the diffuse supernova neutrino background has a unique sensitivity. We extend previous analyses to explore our ability to disentangle predictions for the…

High Energy Physics - Phenomenology · Physics 2024-12-20 Noah Roux , M. Cristina Volpe

The cumulative (anti)neutrino production from all core-collapse supernovae within our cosmic horizon gives rise to the diffuse supernova neutrino background (DSNB), which is on the verge of detectability. The observed flux depends on…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-26 Amy Lien , Brian D. Fields , John F. Beacom

We revisit the possibility that neutrinos undergo non-radiative decay. We investigate the potential to extract information on the neutrino lifetime-to-mass ratio from the diffuse supernova neutrino background. To this aim, we explicitly…

High Energy Physics - Phenomenology · Physics 2023-02-01 Pilar Ivanez-Ballesteros , M. Cristina Volpe

The Diffuse Supernova Neutrino Background (DSNB) -- a probe of the core-collapse mechanism and the cosmic star-formation history -- has not been detected, but its discovery may be imminent. A significant obstacle for DSNB detection in…

High Energy Physics - Phenomenology · Physics 2024-05-07 Bei Zhou , John F. Beacom

The sensitivity of current and future neutrino detectors like Super-Kamiokande (SK), JUNO, Hyper-Kamiokande (HK), and DUNE is expected to allow for the detection of the diffuse supernova neutrino background (DSNB). However, the DSNB model…

High Energy Astrophysical Phenomena · Physics 2024-11-15 Nick Ekanger , Shunsaku Horiuchi , Hiroki Nagakura , Samantha Reitz

If a galactic supernova explosion occurs in the future, it will be critical to rapidly alert the community to the direction of the supernova by utilizing neutrino signals in order to enable the initiation of follow-up optical observations.…

Instrumentation and Methods for Astrophysics · Physics 2024-02-02 Fumi Nakanishi , Shota Izumiyama , Masayuki Harada , Yusuke Koshio

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 Hyper-Kamiokande (HyperK) experiment is expected to precisely measure the Diffuse Supernova Neutrino Background (DSNB). This requires that the backgrounds in the relevant energy range are well understood. One possible background that…

High Energy Physics - Phenomenology · Physics 2022-12-01 Nicole F. Bell , Matthew J. Dolan , Sandra Robles

We revisit the diffuse supernova neutrino background in light of recent systematic studies of stellar core collapse that reveal the quantitative impacts of the progenitor conditions on the collapse process. In general, the dependence of the…

High Energy Astrophysical Phenomena · Physics 2018-02-07 Shunsaku Horiuchi , Kohsuke Sumiyoshi , Ko Nakamura , Tobias Fischer , Alexander Summa , Tomoya Takiwaki , Hans-Thomas Janka , Kei Kotake

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 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

Core-collapse supernovae are among the most powerful explosions in the universe, emitting thermal neutrinos that carry away the majority of the gravitational binding energy released. These neutrinos create a diffuse supernova neutrino…

High Energy Astrophysical Phenomena · Physics 2025-10-09 Shin'ichiro Ando , Nick Ekanger , Shunsaku Horiuchi , Yusuke Koshio

Cosmological measurements over the next decade will enable us to shed light on the content and evolution of the Universe. Complementary measurements of the Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillations are expected to…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-10 Siddharth Mishra-Sharma , David Alonso , Joanna Dunkley

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

Context: The detection of the diffuse supernova neutrino background may be imminent, but theoretical predictions are affected by substantial uncertainties. AIMS. We calculate the signal and its uncertainty with the present configuration of…

High Energy Astrophysical Phenomena · Physics 2012-02-09 Francesco Vissani , Giulia Pagliaroli
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