Thermal MeV neutrino emission from core-collapse supernovae offers a unique opportunity to probe physics beyond the Standard Model in the neutrino sector. The next generation of neutrino experiments, such as DUNE and Hyper-Kamiokande, can detect $\mathcal{O}(10^3)$ and $\mathcal{O}(10^4)$ neutrinos in the event of a Galactic supernova, respectively. As supernova neutrinos propagate to Earth, they may interact with the local dark matter via hidden mediators and may be delayed with respect to the initial neutrino signal. We show that for sub-MeV dark matter, the presence of dark matter-neutrino interactions may lead to neutrino echoes with significant time delays. The absence or presence of this feature in the light curve of MeV neutrinos from a supernova allows us to probe parameter space that has not been explored by dark matter direct detection experiments.
Circumstellar Medium of Supernovae as New Probes for Feebly Interacting Particles
Korea Advanced Institute of Science and Technology (KAIST)（韩国科学技术院）；Institute for Basic Science（基础科学研究院）；Academia Sinica（中央研究院）；National Center for Theoretical Sciences（国家理论科学中心）；Kyungpook National University（庆北国立大学）
Oscillation-Independent Probes of Neutrino Non-Standard Interactions from Supernovae
San Francisco State University（旧金山州立大学）；University of California Berkeley（加州大学伯克利分校）；New York University（纽约大学）；High Energy Accelerator Research Organization (KEK)（高能加速器研究机构（KEK））；Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK)（高能加速器研究机构粒子与核研究研究所（IPNS，KEK））；Graduate University for Advanced Studies (SOKENDAI)（综合研究大学院大学（SOKENDAI））；The University of Tokyo（东京大学）
Strong magnetic field inside degenerate relativistic plasma and the impacts on the neutrino transport in Core-Collapse Supernovae
Peking University（北京大学）；Yunnan Observatories, Chinese Academy of Sciences (CAS)（中国科学院云南天文台）；Beihang University（北京航空航天大学）；The University of Tokyo（东京大学）；National Astronomical Observatory of Japan（日本国立天文台）
Solar-System Abundances of $p$-Nuclides Probe Collective Neutrino Oscillations in Supernovae
SLAC National Accelerator Laboratory, Stanford University（斯坦福大学斯坦福直线加速器中心）；Leinweber Institute for Theoretical Physics, Stanford University（斯坦福大学莱因韦伯理论物理研究所）；Department of Physics, University of California Berkeley（加州大学伯克利分校物理系）；Department of Applied Mathematics and Theoretical Physics, University of Cambridge（剑桥大学应用数学与理论物理系）；Department of Physics, University of California San Diego（加州大学圣地亚哥分校物理系）；School of Physics and Astronomy, University of Minnesota（明尼苏达大学物理与天文学院）；Department of Physics, New York Institute of Technology（纽约理工学院物理系）；Reed College（里德学院）
$L_μ-L_τ$ gauge bosons in beam dumps and supernovae
York University（约克大学）；Fermi National Accelerator Laboratory（费米国家加速器实验室）；Texas A&M University（德克萨斯农工大学）；California Institute of Technology（加州理工学院）；CERN（欧洲核子研究组织）；University of Cincinnati（辛辛那提大学）
The Dark Matter Diffused Supernova Neutrino Background
Arizona State University（亚利桑那州立大学）；Virginia Tech（弗吉尼亚理工大学）；High Energy Accelerator Research Organization (KEK)（高能加速器研究机构）；Massachusetts Institute of Technology（麻省理工学院）；Harvard University（哈佛大学）
