activity
20122026
most citedHyper-Kamiokande Design Report

417 citations · 5.2k across the 148 of their papers we have counts for

collaborators

153 papers

astro-ph.CO2026

Gravitational Wave Diffractive Images Reveal the Structure of Astrophysical Objects

Han Gil Choi, Sunghoon Jung, Volodymyr Takhistov

Scattering patterns encode the structure of extended objects, as demonstrated by charged particle scattering on atomic nuclei. Gravitational wave (GW) diffraction offers an analogo…

hep-ph2026

Transient PULSE: Code for the Transient Propagation of UltraLight (pseudo)Scalars to Earth

Jason Arakawa, Charles Cheung, Muhammad Hani Zaheer +2

We present Transient PULSE, a software package that numerically implements a previously developed source-to-detector framework for transient ultralight bosonic signals from astroph…

hep-ph2026

Moving a Detector to Probe New Neutrino Interactions: IWCD at Hyper-Kamiokande

Thomas Schwemberger, Volodymyr Takhistov

Moving a detector through a beam with a spatially varying energy spectrum exposes the same target and apparatus to distinct incident spectra, enabling interaction spectroscopy. Whi…

hep-ph2026

Halo-Independent Quantum Sensor Probes of Low-Velocity Dark Matter

Muping Chen, Graciela B. Gelmini, Volodymyr Takhistov +1

We present a halo-independent framework for sub-GeV dark matter (DM) direct detection using quantum sensors with sub-eV energy thresholds. Such detectors enable access to low DM ve…

astro-ph.CO2026

Universal Suppression of Gravitational Waves from Black Hole Evaporation Dynamics

Xin-Chen He, Xiao-Han Ma, Misao Sasaki +1

Evaporating black holes can leave distinct imprints on gravitational wave (GW) backgrounds. We show that black hole populations with finite width mass distributions exhibit a unive…

hep-ph2026

Echoes of Nucleon Decay from Long-Lived Particles

Patrick Adolf, Chandan Hati, Martin Hirsch +1

Nucleon decay searches provide uniquely sensitive probes of baryon number violation and physics beyond the Standard Model. We propose a new class of nucleon decay observables invol…

hep-ph2026

Casimir Geometry as a Probe of Short Range Forces

Xiaolin Ma, Volodymyr Takhistov, Hideo Iizuka

Casimir force searches provide among the most sensitive laboratory probes of new short range interactions. Existing constraints rely almost exclusively on a single geometry. We sho…

hep-ph2026

Experimental Tests of Baryon and Lepton Number Conservation

Volodymyr Takhistov

Baryon number () conservation underlies the apparent stability of ordinary matter by forbidding the decay of nucleons, while lepton number () conservation plays a central rol…

hep-ph2025

Multiple Axions in Laboratory Experiments

Arturo de Giorgi, Joerg Jaeckel, Sebastian Monath +1

Axions and axion-like particles generically appear in extensions of the Standard Model. While many searches assume only a single axion species, there may exist a whole spectrum of…

astro-ph.CO2025

Multimessenger Constraints on Supermassive Dark Stars and Their Black Hole Remnants

Marco Manno, Thomas Schwemberger, Volodymyr Takhistov

Dark matter (DM) annihilation can power the first generation of stars as long lived dark stars (DSs) that grow to supermassive scales and event…

hep-ph2025

Beyond Qubits: Multilevel Quantum Sensing for Dark Matter

Xiaolin Ma, Volodymyr Takhistov, Norikazu Mizuochi +1

Quantum sensing with qubits has advanced fundamental physics searches, but higher dimensional systems offer untapped potential. We present a universal qutrit framework that yields…

hep-ph2025

Probing Dark Matter Interactions with Stellar Motion near Sagittarius A*

R. Andrew Gustafson, Ian M. Shoemaker, Volodymyr Takhistov

Stars orbiting Sgr A* at the Milky Way's center provide a unique laboratory to test gravity and dark matter (DM). We demonstrate that DM interactions in stellar interiors induce a…

hep-ph2025

Oscillation-Independent Probes of Neutrino Non-Standard Interactions from Supernovae

Angela R. Beatty, Anna M. Suliga, Volodymyr Takhistov

Extreme astrophysical environments provide unique laboratories for testing fundamental neutrino interactions. We present the first oscillation-independent astrophysical probe of no…

hep-ph2025★ 1 cited

Unified Gas Heating Constraints on Extended Dark Matter Compact Objects

TaeHun Kim, Philip Lu, Volodymyr Takhistov

We present the first unified constraints on a broad class of extended dark matter compact objects (EDCOs) from interstellar gas heating. These include axion stars, Q-balls, axion m…

astro-ph.HE2025

Probing ALP-Photon Mixing with High-Resolution X-ray Spectroscopy

Yu Zhou, Jiejia Liu, Volodymyr Takhistov +1

Axion-like particles (ALPs) provide a compelling avenue for exploring physics beyond the Standard Model. In astrophysical magnetized plasmas an ALP-photon coupling induces…

hep-ph2025

Multiple Populations of Same Sterile Neutrino as Dark Matter

Muping Chen, Graciela B. Gelmini, Philip Lu +1

Sterile neutrinos produced in the early Universe that mix with active neutrinos of the Standard Model are typically considered to consist of a single population resulting from one…

hep-ph2025

Light Dark Matter Detection with Sub-eV Transition-Edge Sensors

Muping Chen, Volodymyr Takhistov, Kazunori Nakayama +1

We present a comprehensive analysis of high-resolution transition-edge sensors (TESs) as a quantum sensing platform for detecting dark matter (DM). Operating near the thermodynamic…

hep-ph2025

Dark Matter-Independent Orbital Decay Bounds on Ultralight Bosons from OJ287

Qianhang Ding, Minxi He, Volodymyr Takhistov +1

Ultralight bosons, predicted in scenarios beyond the Standard Model and viable dark matter (DM) candidates, can form superradiant clouds around spinning black holes influencing the…

hep-ph2025★ 1 cited

Multimessenger Astronomy Beyond the Standard Model: New Window from Quantum Sensors

Jason Arakawa, Muhammad H. Zaheer, Volodymyr Takhistov +3

Ultralight bosonic (ULB) fields with mass ~eV often arise in theories beyond the Standard Model (SM). If such fields exist, violent astrophysical events that result in e…

astro-ph.CO2025★ 15 cited

Primordial Black Hole Formation from Power Spectrum with Finite-width

Shi Pi, Misao Sasaki, Volodymyr Takhistov +1

Primordial black holes (PBHs) can form from gravitational collapse of large overdensities in the early Universe, giving rise to rich phenomena in astrophysics and cosmology. We dev…

hep-ph2024

Cosmology-Independent Constraints on Irreducible Magnetic Monopole Background

Syuhei Iguro, Varun Mathur, Ian M. Shoemaker +1

We present a novel mechanism for the irreducible production of magnetic monopoles from interactions of cosmic rays and interstellar medium (ISM). Resulting monopoles drain energy f…

hep-ph2024

Diffuse Neutrino Signals from Dark Stars Seeding Super-Massive Black Holes

Thomas Schwemberger, Volodymyr Takhistov

Dark stars (DSs) -- first stars powered by dark-matter (DM) heating rather than fusion -- could form in the early Universe. They can grow to masses and col…

astro-ph.CO2024★ 2 cited

Primordial Black Hole Mergers as Probes of Dark Matter in Galactic Center

Qianhang Ding, Minxi He, Volodymyr Takhistov

Primordial black holes (PBHs) from the early Universe that can contribute to dark matter (DM) abundance have been linked to gravitational wave observations. Super-massive black hol…

astro-ph.CO2024

Dual Gravitational Wave Signatures of Instant Preheating

Wei-Yu Hu, Kazunori Nakayama, Volodymyr Takhistov +1

In the instant preheating scenario efficient particle production occurs immediately following the period of inflationary expansion in the early Universe. We demonstrate that instan…