Resonance production of keV sterile neutrinos in core-collapse supernovae and lepton number diffusion
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Resonance production of keV sterile neutrinos in core-collapse supernovae and lepton number diffusion. / Syvolap, Vsevolod; Ruchayskiy, Oleg; Boyarsky, Alexey.
In: Physical Review D, Vol. 106, No. 1, 015017, 19.07.2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Resonance production of keV sterile neutrinos in core-collapse supernovae and lepton number diffusion
AU - Syvolap, Vsevolod
AU - Ruchayskiy, Oleg
AU - Boyarsky, Alexey
PY - 2022/7/19
Y1 - 2022/7/19
N2 - We investigate how hypothetical particles-sterile neutrinos-can be produced in the interior of exploding supernovae via the resonant conversion of nu over bar mu and nu over bar tau. The novelty of our treatment lies in the proper account of the resulting lepton number diffusion. We compute the yield of sterile neutrinos and find that even after taking into account backreaction, sterile neutrinos can carry out a sizeable fraction of the total energy of the explosion comparable to that of active neutrinos. The production is, however, sensitive to the temperature in the inner supernovae regions, making robust predictions of challenging. In order to understand whether this production affects supernova evolution and can therefore be constrained, detailed simulations including the effects of sterile neutrinos are needed.
AB - We investigate how hypothetical particles-sterile neutrinos-can be produced in the interior of exploding supernovae via the resonant conversion of nu over bar mu and nu over bar tau. The novelty of our treatment lies in the proper account of the resulting lepton number diffusion. We compute the yield of sterile neutrinos and find that even after taking into account backreaction, sterile neutrinos can carry out a sizeable fraction of the total energy of the explosion comparable to that of active neutrinos. The production is, however, sensitive to the temperature in the inner supernovae regions, making robust predictions of challenging. In order to understand whether this production affects supernova evolution and can therefore be constrained, detailed simulations including the effects of sterile neutrinos are needed.
KW - EQUATION-OF-STATE
KW - DARK-MATTER
KW - INERT NEUTRINOS
KW - NEUTRON-STAR
KW - OSCILLATIONS
KW - EVOLUTION
KW - PROGENITOR
KW - AXIONS
KW - BOUNDS
KW - SIMULATIONS
U2 - 10.1103/PhysRevD.106.015017
DO - 10.1103/PhysRevD.106.015017
M3 - Journal article
VL - 106
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 1
M1 - 015017
ER -
ID: 325827435