Speaker
Dr.
Seokhoon Yun
(IBS-CTPU)
Description
During the accretion phase of a core-collapse supernova, dark-photon cooling can be largest in the gain layer below the stalled shock wave, in this way counter-act the usual shock rejuvenation by neutrino energy deposition, and thus prevent the explosion. The peculiar energy-loss profile derives from the resonant nature of dark-photon production. The largest effect obtains for the mass range 0.1–0.5 MeV, corresponding to the photon plasma mass in the gain region. For a coupling strength so small as to avoid this effect, the cooling of the core is too small to affect the neutrino signal.
Primary authors
Dr.
Seokhoon Yun
(IBS-CTPU)
Prof.
Andrea Caputo
(CERN & Sapienza” Universit`a di Roma & Sezione INFN Roma1)
Prof.
Hans-Thomas Janka
(Garching, Max Planck Inst.)
Prof.
Georg Raffelt
(Munich, Max Planck Inst.)
Mr.
Jaeyoung Park
(Seoul National University)
