Dr Michael Reidinger

High Energy Physics 5 Optical Fiber Patents | Dark Matter and Dark Energy |•| Astrophysics

[Dr Michael Reidinger @scimichael]

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

We present a halo-independent framework for sub-GeV dark matter (DM) direct detection using quantum sensors with sub-eV energy thresholds.

https://t.co/MJzO4Hn3bT

[Dr Michael Reidinger @scimichael]

Spin Identification of Dark Sector Mediators through Angular Distributions

A variety of experiments are operating or planned to search for displaced decays of light long-lived dark sector particles.

https://t.co/Kpcph3IqU8

[Dr Michael Reidinger @scimichael]

LIGO, LISA and Ultralight Axion-like Dark Matter

A coherent cosmic background of axion-like particles (ALPs) coupled to photons can produce a small periodic differential phase or polarization modulation for photons traversing separate arms in gravitational wave interferometers, peaked at a frequency associated with the particle mass, and suppressed whenever the dark matter...

https://t.co/SseRTrHO8m

[Dr Michael Reidinger @scimichael]

Reviving Z' Portal Dark Matter with Conversion Mechanism

In many new physics models with extended gauge symmetry, the new gauge boson could mediate the interactions between the dark matter and standard model particles. For the conventional Z' portal dark matter, the collider and the direct detection constraints typically pose a significant challenge.

https://t.co/jn9zgYf03B

[Dr Michael Reidinger @scimichael]

Relativistic Atomic Effects of Dark Matter Electron Scattering

The dark matter scattering with atomic bound electrons is a crucial avenue for exploring the sub-GeV mass range. The commonly used factorization, where atomic effects are encoded

https://t.co/ay8DB6Ntsk

[Dr Michael Reidinger @scimichael]

Relaxed constraints for dark matter with axial coupling to a dark photon

We present a new model of the dark sector involving Dirac fermion dark matter, with axial coupling to a dark photon which provides a portal to Standard Model particles.

https://t.co/WAQoWtOpf5

[Dr Michael Reidinger @scimichael]

Testing Heavy Dark Matter Decay as the Origin of KM3-230213A

KM3NeT Collaboration:
This work explores the hypothesis that the ultra-high-energy neutrino event KM3-230213A originates from the decay of a heavy dark matter particle with a mass above PeV scale. 

https://t.co/iUjbRCebGC

[Dr Michael Reidinger @scimichael]

Confronting fuzzy dark matter with the rotation curves of nearby dwarf irregular galaxies

We investigate phenomenologically the viability of fuzzy dark matter (FDM).

https://t.co/TI7bsysKH4

[Dr Michael Reidinger @scimichael]

Flavour and Electroweak Precision Constraints on a Simplified Dark Matter Model with a Light Spin-0 Mediator

This work investigates the allowed parameter spaces of a simplified dark matter (DM) model characterized by a spin-0 mediator with masses in the low to intermediate range (< 10 GeV).

https://t.co/eWxLmsajHD

[Dr Michael Reidinger @scimichael]

Polarized and unpolarized synchrotron emission from dark matter in extragalactic targets

We compute 95% confidence-level upper limits on the dark matter annihilation cross section and decay rate from both total-intensity and polarized synchrotron emission in five extragalactic targets: M31, the Large Magellanic Cloud (LMC), the Draco and Sculptor dwarf spheroidal galaxies, and the Coma cluster

https://t.co/tK0CiWi5xP

[Dr Michael Reidinger @scimichael]

Joint probes of dark matter annihilation from neutrino detectors and CMB targets

Dark matter (DM) annihilation into neutrinos provides a promising observational channel targeted by current and forthcoming neutrino detectors

https://t.co/aq3vkabpd5

[Dr Michael Reidinger @scimichael]

A New Origin of the Big Bang from Dark-Sector-Induced Vacuum Decay and Its Gravitational-Wave Signal

We propose a novel scenario for the onset of the thermal Big Bang. In this framework, the inflaton transfers its energy exclusively into a dark sector, leaving the Standard Model (SM) sector temporarily trapped in a false vacuum.

https://t.co/Jz5e9ahCkN

[Dr Michael Reidinger @scimichael]

Expected Sensitivity of the Light Dark Matter eXperiment to Long-Lived Dark Photons and Axion-Like Particles

The Light Dark Matter eXperiment (LDMX) is an electron-beam fixed-target experiment primarily designed to achieve world-leading, model-independent sensitivity to sub-GeV dark matter particles. LDMX

https://t.co/iWOCRgg0Ls

[Dr Michael Reidinger @scimichael]

Sub-GeV dark matter and multi-decay signatures from dark showers at beam-dump experiments

In models of strongly interacting dark sectors, the production of dark quarks at accelerators can give rise to dark showers with multiple dark mesons in the final state.

https://t.co/uFCiIMsR5l

[Dr Michael Reidinger @scimichael]

When backgrounds become signals: neutrino interactions in xenon-based dark matter detectors

Direct detection dark matter experiments have proven to be compelling probes for studying low-energy neutrino interactions with both nuclei and atomic electrons, offering complementary information to accelerator and reactor-based neutrino experiments.

https://t.co/8w5BpPHpLn

[Dr Michael Reidinger @scimichael]

Heavy-element paleodetectors for Higgsino dark matter

Paleodetectors have been proposed as a new approach to direct detection of weakly interacting massive particles (WIMPs), through the search for damage tracks in ancient minerals induced by WIMP-nucleon scattering.

https://t.co/TnXlFzNqKr

[Dr Michael Reidinger @scimichael]

Shedding Light on Dark Matter at the LHC with Machine Learning

We investigate a WIMP dark matter (DM) candidate in the form of a singlino-dominated lightest supersymmetric particle (LSP) within the symmetric Next-to-Minimal Supersymmetric Standard Model (NMSSM).

https://t.co/bWtlnbagPt

[Dr Michael Reidinger @scimichael]

Dark Matter Interpretation of the Super-Kamiokande Antineutrino Excess in model

Recent analyses of the diffuse supernova neutrino background, based on data across all SK phases, indicate a mild preference over the zero-DSNB hypothesis at the level of about with electron-like antineutrino events

https://t.co/qSHWfX4f35

[Dr Michael Reidinger @scimichael]

Mono-Higgs signature in a singlet fermionic dark matter model

We investigate mono-Higgs production as a probe of singlet fermionic dark matter (SFDM) at the LHC.

https://t.co/btXxES7bRh

[Dr Michael Reidinger @scimichael]

Constraining meV Axion Dark Matter with ALMA Observations of the Galactic Center Magnetar SGR 1745-2900

report a mm-wave search for axion dark matter from SGR 1745-2900, based on 4.8 h of ALMA observations.

https://t.co/JYtL4TjyOJ