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New Methods and Simulations for Cosmogenic Induced Spallation Removal in Super-Kamiokande-IV
Kamiokande Collaboration, S. Locke, A. Coffani +215
Radioactivity induced by cosmic muon spallation is a dominant source of backgrounds for MeV neutrino interactions in water Cherenkov detectors. In particular, it…
Impacts of Jets and Winds From Primordial Black Holes
Volodymyr Takhistov, Philip Lu, Kohta Murase +2
Primordial black holes (PBHs) formed in the early Universe constitute an attractive candidate for dark matter. Within the gaseous environment of the interstellar medium, PBHs with…
Neutrino and Axion Astronomy with Dark Matter Experiments
Volodymyr Takhistov
Sensitive dark matter (DM) experiments can be well exploited beyond their designated targets, allowing to explore a breadth of physics topics. As we discuss, future large direct DM…
Cosmological Dependence of Sterile Neutrino Dark Matter With Self-Interacting Neutrinos
Carlos Chichiri, Graciela B. Gelmini, Philip Lu +1
Unexplored interactions of neutrinos could be the key to understanding the nature of the dark matter (DM). In particular, active neutrinos with new self-interactions can produce ke…
Monopoles From an Atmospheric Fixed Target Experiment
Syuhei Iguro, Ryan Plestid, Volodymyr Takhistov
Magnetic monopoles have a long history of theoretical predictions and experimental searches, carrying direct implications for fundamental concepts such as electric charge quantizat…
Establishing the Non-Primordial Origin of Black Hole-Neutron Star Mergers
Misao Sasaki, Volodymyr Takhistov, Valeri Vardanyan +1
Primordial black holes (PBHs) from the early Universe constitute an attractive dark matter candidate. First detections of black hole-neutron star (BH-NS) candidate gravitational wa…
First Gadolinium Loading to Super-Kamiokande
K. Abe, C. Bronner, Y. Hayato +212
In order to improve Super-Kamiokande's neutron detection efficiency and to thereby increase its sensitivity to the diffuse supernova neutrino background flux, 13 tons of $\rm Gd_2(…
Probing Relativistic Axions from Transient Astrophysical Sources
Joshua Eby, Satoshi Shirai, Yevgeny V. Stadnik +1
Emission of relativistic axions from transient sources, such as axion star explosions, can lead to observable signatures. We show that axion bursts from collapsing axion stars can…
Halo-Independent Analysis of Direct Dark Matter Detection Through Electron Scattering
Muping Chen, Graciela B. Gelmini, Volodymyr Takhistov
Sub-GeV mass dark matter particles whose collisions with nuclei would not deposit sufficient energy to be detected, could instead be revealed through their interaction with electro…
Exploring Evaporating Primordial Black Holes with Gravitational Waves
Guillem Domènech, Volodymyr Takhistov, Misao Sasaki
Primordial black holes (PBHs) from the early Universe have been connected with the nature of dark matter and can significantly affect cosmological history. We show that coincidence…
Interstellar Gas Heating by Primordial Black Holes
Volodymyr Takhistov, Philip Lu, Graciela B. Gelmini +3
Interstellar gas heating is a powerful cosmology-independent observable for exploring the parameter space of primordial black holes (PBHs) formed in the early Universe that could c…
Search for neutrinos in coincidence with gravitational wave events from the LIGO-Virgo O3a Observing Run with the Super-Kamiokande detector
Kamiokande collaboration, K. Abe, C. Bronner +209
The Super-Kamiokande detector can be used to search for neutrinos in time coincidence with gravitational waves detected by the LIGO-Virgo Collaboration (LVC). Both low-energy ($7-1…
Exploring the Origin of Supermassive Black Holes with Coherent Neutrino Scattering
Victor Munoz, Volodymyr Takhistov, Samuel J. Witte +1
Collapsing supermassive stars () at high redshifts can naturally provide seeds and explain the origin of the supermassive black holes observed in…
Search for Tens of MeV Neutrinos associated with Gamma-Ray Bursts in Super-Kamiokande
Kamiokande Collaboration, A. Orii, K. Abe +216
A search for neutrinos produced in coincidence with Gamma-Ray Bursts(GRB) was conducted with the Super-Kamiokande (SK) detector. Between December 2008 and March 2017, the Gamma-ray…