The diffuse supernova neutrino background(DSNB) is a theoretical population of neutrinos (and anti-neutrinos) cumulatively originating from all core-collapse supernovae events throughout the history of the universe. Though it has not yet been directly detected, the DSNB is theorized to be isotropic and consists of neutrinos with typical energies on the scale of 107 eV.[1] Current detection efforts are limited by the influence of background noise in the search for DSNB neutrinos and are therefore limited to placing limits on the parameters of the DSNB, namely the neutrino flux. Restrictions on these parameters have gotten more strict in recent years, but many researchers are looking to make direct observations in the near future with next generation detectors.[2] The DSNB is not to be confused with the cosmic neutrino background (CNB), which is comprised by relic neutrinos that were produced during the Big Bang and have much lower energies (10−4 to 10−6 eV).[3]
^Beacom, John F. (2010). "The diffuse supernova neutrino background". Annual Review of Nuclear and Particle Science. 60: 439–462. arXiv:1004.3311. Bibcode:2010ARNPS..60..439B. doi:10.1146/annurev.nucl.010909.083331. S2CID 118519312.
^Abe, K.; Bronner, C.; Hayato, Y.; Hiraide, K.; Ikeda, M.; Imaizumi, S.; Kameda, J.; Kanemura, Y.; Kataoka, Y.; Miki, S.; Miura, M.; Moriyama, S.; Nagao, Y.; Nakahata, M.; et al. (Super-Kamiokande Collaboration) (2021-12-10). "Diffuse supernova neutrino background search at Super-Kamiokande". Physical Review D. 104 (12): 122002. arXiv:2109.11174. doi:10.1103/PhysRevD.104.122002. S2CID 237605488.
^Follin, Brent; Knox, Lloyd; Millea, Marius; Pan, Zhen (2015-08-26). "First Detection of the Acoustic Oscillation Phase Shift Expected from the Cosmic Neutrino Background". Physical Review Letters. 115 (9): 091301. arXiv:1503.07863. doi:10.1103/PhysRevLett.115.091301. PMID 26371637. S2CID 24763212.
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The diffusesupernovaneutrinobackground (DSNB) is a theoretical population of neutrinos (and anti-neutrinos) cumulatively originating from all core-collapse...
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level of neutrinos known as the cosmic neutrinobackground (CNB). Diffusesupernovaneutrinobackground (Supernova originated) R. Davis and M. Koshiba were...
remove background signal. Since neutrinos are very difficult to detect, the only bodies that have been studied in this way are the sun and the supernova SN1987A...
black hole, or is completely destroyed to form a diffuse nebula. The peak optical luminosity of a supernova can be comparable to that of an entire galaxy...
The IceCube Neutrino Observatory (or simply IceCube) is a neutrino observatory developed by the University of Wisconsin–Madison and constructed at the...
light-years) from Earth and was the closest observed supernova since Kepler's Supernova in 1604. Light and neutrinos from the explosion reached Earth on February...
of neutrinobackground is from the Sun, while for higher masses the background contains contributions from atmospheric neutrinos and the diffuse supernova...
candidate is the sterile neutrino: a heavier, slower form of neutrino that does not interact through the weak force, unlike other neutrinos. Some modified gravity...
Microwave Background. Axis of evil (cosmology) – An anomaly in astronomical observations of the Cosmic Microwave Background Cosmic neutrinobackground – Universe's...
emission of a positron with a neutrino in so-called positron emission. Neither the beta particle nor its associated (anti-)neutrino exist within the nucleus...
stars and supernova explosions produce very large numbers of neutrinos, very few of which may be detected by a neutrino telescope. Neutrino astronomy...
an associated supernova, such as the Swift event GRB 060614. Solar neutrino problem (1968–2001): Solved by a new understanding of neutrino physics, requiring...
become white dwarfs; more massive stars will explode in a core-collapse supernova, leaving behind neutron stars or black holes. In any case, although some...
cosmic rays originate from the supernova explosions of stars.[better source needed] Based on observations of neutrinos and gamma rays from blazar TXS...
the number of electron neutrinos predicted by the theory, but neutrino detectors were missing 2⁄3 of them because the neutrinos had changed flavor by the...
to the development of space stations (1967) The Supernova Cosmology Project and the High-Z Supernova Search Team discover, by observing Type Ia supernovae...
John F. Beacom. "Constraining very heavy dark matter using diffusebackgrounds of neutrinos and cascaded gamma rays." Journal of Cosmology and Astroparticle...
transitions to a flat extragalactic spectrum. However diffusive shock acceleration in supernova remnants, which is the predominant source of cosmic rays...
isotope, as it is the most easily produced by stellar nucleosynthesis in supernovas. The name "argon" is derived from the Greek word ἀργόν, neuter singular...
radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang...
the photons were no longer interacting with the baryonic matter and they diffused away. That relieved the pressure on the system, leaving behind shells of...
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