학술논문
Supernova Model Discrimination with Hyper-Kamiokande
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article
Author
Collaboration, Hyper-Kamiokande; :; Abe, K; Adrich, P; Aihara, H; Akutsu, R; Alekseev, I; Ali, A; Ameli, F; Anghel, I; Anthony, LHV; Antonova, M; Araya, A; Asaoka, Y; Ashida, Y; Aushev, V; Ballester, F; Bandac, I; Barbi, M; Barker, GJ; Barr, G; Batkiewicz-Kwasniak, M; Bellato, M; Berardi, V; Bergevin, M; Bernard, L; Bernardini, E; Berns, L; Bhadra, S; Bian, J; Blanchet, A; Blaszczyk, FDM; Blondel, A; Boiano, A; Bolognesi, S; Bonavera, L; Booth, N; Borjabad, S; Boschi, T; Bose, D; Boyd, SB; Bozza, C; Bravar, A; Bravo-Berguño, D; Bronner, C; Brown, L; Bubak, A; Buchowicz, A; Avanzini, M Buizza; Cafagna, FS; Calabria, NF; Calvo-Mozota, JM; Cao, S; Cartwright, SL; Carroll, A; Catanesi, MG; Cebriàn, S; Chabera, M; Chakraborty, S; Checchia, C; Choi, JH; Choubey, S; Cicerchia, M; Coleman, J; Collazuol, G; Cook, L; Cowan, G; Cuen-Rochin, S; Danilov, M; Lopez, G Daz; De la Fuente, E; de Perio, P; De Rosa, G; Dealtry, T; Densham, CJ; Dergacheva, A; Deshmukh, N; Devi, MM; Di Lodovico, F; Di Meo, P; Di Palma, I; Doyle, TA; Drakopoulou, E; Drapier, O; Dumarchez, J; Dunne, P; Dziewiecki, M; Eklund, L; Hedri, S El; Ellis, J; Emery, S; Esmaili, A; Esteve, R; Evangelisti, A; Feely, M; Fedotov, S; Feng, J; Fernandez, P; Fernández-Martinez, E; Ferrario, P
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Abstract
Core-collapse supernovae are among the most magnificent events in theobservable universe. They produce many of the chemical elements necessary forlife to exist and their remnants -- neutron stars and black holes -- areinteresting astrophysical objects in their own right. However, despitemillennia of observations and almost a century of astrophysical study, theexplosion mechanism of core-collapse supernovae is not yet well understood.Hyper-Kamiokande is a next-generation neutrino detector that will be able toobserve the neutrino flux from the next galactic core-collapse supernova inunprecedented detail. We focus on the first 500 ms of the neutrino burst,corresponding to the accretion phase, and use a newly-developed, high-precisionsupernova event generator to simulate Hyper-Kamiokande's response to fivedifferent supernova models. We show that Hyper-Kamiokande will be able todistinguish between these models with high accuracy for a supernova at adistance of up to 100 kpc. Once the next galactic supernova happens, thisability will be a powerful tool for guiding simulations towards a precisereproduction of the explosion mechanism observed in nature.