Supernova Preshock Neutronization Burst as a Probe of Non-Standard Neutrino Interactions

Abstract

Core-collapse supernova (CCSN) provides a unique astrophysical site for studying neutrino-matter interactions. Prior to the shock-breakout neutrino burst during the collapse of the iron core, a preshock ${\nu }_e$ burst arises from the electron capture of nuclei and it is sensitive to the low-energy coherent elastic neutrino-nucleus scattering (CE$\nu$NS) which dominates the neutrino opacity. Since the CE$\nu$NS depends strongly on the non-standard neutrino interactions (NSI) which are completely beyond the standard model and yet to be determined, the detection of the preshock burst thus provides a clean way to extract the NSI information. Within the spherically symmetric general-relativistic hydrodynamic simulation for the CCSN, we investigate the NSI effects on the preshock burst. We find that the NSI can maximally enhance the peak luminosity of the preshock burst almost by a factor of three, reaching a value comparable with that of the shock-breakout burst. Future detection of the preshock burst will have critical implications on astrophysics, neutrino physics and physics beyond the standard model.

7 pages, 3 figures. Presentation improved and discussions added. Accepted version to appear in ApJL

References in corpus (4)

• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• Status of non-standard neutrino interactions
• Current Status of r-Process Nucleosynthesis
• The Progenitor Dependence of the Preexplosion Neutrino Emission in Core-Collapse Supernovae

Cited by in corpus (4)

• Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor
• Constraining Light Mediators via Detection of Coherent Elastic Solar Neutrino Nucleus Scattering
• Probing neutrino magnetic moments and the XENON1T excess with coherent elastic solar neutrino scattering
• Oscillation-Independent Probes of Neutrino Non-Standard Interactions from Supernovae