A5025851873- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Astrophysics and Cosmic Phenomena
- Scientific Research and Discoveries
- Network Time Synchronization Technologies
- Galaxies: Formation, Evolution, Phenomena
- Pulsars and Gravitational Waves Research
- Cooperative Communication and Network Coding
- Advanced Thermodynamics and Statistical Mechanics
- Nonlinear Dynamics and Pattern Formation
- Stellar, planetary, and galactic studies
- EEG and Brain-Computer Interfaces
- Functional Brain Connectivity Studies
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Technologies
- stochastic dynamics and bifurcation
- Smart Grid Security and Resilience
- Real-Time Systems Scheduling
- Healthcare Technology and Patient Monitoring
- Wireless Networks and Protocols
- Media, Journalism, and Communication History
- Advanced Chemical Sensor Technologies
SLAC National Accelerator Laboratory
2023-2024
Queen's University
2019-2024
Arthur B. McDonald-Canadian Astroparticle Physics Research Institute
2019-2024
Deutsche Telekom (Germany)
2018-2024
Stanford University
2023
TU Dresden
2018-2022
Deutsche Telekom (Austria)
2021
National University of Mar del Plata
2017-2018
Consejo Nacional de Investigaciones Científicas y Técnicas
2017-2018
Instituto de Investigaciones Físicas de Mar del Plata
2017-2018
Abstract The minimum testable dark matter (DM) mass for almost all DM signatures in celestial bodies is determined by the rate at which evaporates. evaporation has previously been calculated assuming a competition between gravitational potential of object, and thermal kicks from celestial-body matter. We point out new effect, where mediators with range larger than interparticle spacing induce force proportional to density gradient objects, forming an barrier DM. This effect can be so...
Abstract We show that Milky Way white dwarfs are excellent targets for dark matter (DM) detection. Using Fermi and H.E.S.S. Galactic center gamma-ray data, we investigate sensitivity to DM annihilating within into long-lived or boosted mediators producing detectable gamma rays. Depending on the distribution, set new constraints spin-independent scattering cross section down 10 -45 -10 -41 cm 2 in sub-GeV mass range, which is multiple orders of magnitude stronger than existing limits. For a...
It was recently demonstrated that asymmetric dark matter can ignite supernovae by collecting and collapsing inside lone sub-Chandrasekhar mass white dwarfs, this may be the cause of Type Ia supernovae. A ball accumulated a dwarf under its own weight, sheds enough gravitational potential energy through scattering with nuclei, to spark fusion reactions precede supernova explosion. In article we elaborate on mechanism use it place new bounds interactions between nucleons for masses $m_{X} =...
Abstract Dark matter can be captured by celestial objects and accumulate at their centers, forming a core of dark that collapse to small black hole, provided the annihilation rate is or zero. If nascent hole big enough, it will grow consume star planet. We calculate accumulation in Sun Earth, use continued existence place novel constraints on high mass asymmetric interactions. also identify detail less destructive signatures: newly-formed enough evaporate via Hawking radiation, resulting an...
Large composite dark matter states source a scalar binding field that, when coupled to Standard Model nucleons, provides potential under which nuclei recoil and accelerate energies capable of ionization, radiation, thermonuclear reactions. We show that these dynamics are detectable for nucleon couplings as small $g_n \sim 10^{-17}$ at experiments, where the greatest sensitivity is attained by considering Migdal effect. also explore Type-Ia supernovae planetary heating possible means discover...
Neutron stars serve as excellent next-generation thermal detectors of dark matter, heated by the scattering and annihilation matter accelerated to relativistic speeds in their deep gravitational wells. However, dynamics neutron star cores are uncertain, making it difficult at present unequivocally compute this region. On other hand, physics an outer layer star, crust, is more robustly understood. We show that solely with low-density crust still kinetically heats infrared temperatures...
A new dynamic is identified between dark matter and nuclei. Nuclei accelerated to MeV energies by the internal potential of composite can undergo nuclear fusion. This effect arises in simple models made heavy fermions bound a light scalar field. Cosmologies detection prospects are explored for composites that catalyze reactions underground detectors stars, including bremsstrahlung radiation from nuclei scattering against electrons hot plasma formed interior. If discovered collected, this...
Dark photons are a well-motivated candidate for dark matter, but their detection becomes challenging ultralight masses with both experimental and astrophysical probes. In this work, we propose new approach to explore regime through the inverse Compton scattering of cosmic ray electrons positrons. We show process generates potentially observable background radiation that is most prominent at frequencies below MHz. compute effect using latest models radio absorption maps. Comparing it...
Abstract We investigate loosely bound composite states made of dark matter, where the binding energy for constituent particles is considerably less than mass. focus on models nuclear and molecular constituents are separated by length scales larger inverse mass, just like nuclei atoms in Standard Model. The cosmology, structure, interactions at underground experiments described. find that composites can have a very large cross section scattering with nucleon number ∼ A 4 . For some couplings,...
Abstract We present a new inelastic dark matter search: neutron stars in matter-rich environments capture which, for interstate mass splittings between about 45 - 285 MeV, will annihilate away before becoming fully trapped inside the object. This means sizable fraction of particles can while being outside star, producing star-focused gamma-rays and neutrinos. analyze this effect first time target star population Galactic Center, where large content makes signal most significant. Depending on...
Recent years have witnessed a growing interest in EEG-based wearable classifiers of emotions, which could enable the real-time monitoring patients suffering from neurological disorders such as Amyotrophic Lateral Sclerosis (ALS), Autism Spectrum Disorder (ASD), or Alzheimer's. The hope is that emotion would facilitate patients' social integration and lead to improved healthcare outcomes for them their loved ones. Yet spite direct relevance neuro-medicine, hardware platforms classification...
We present a new inelastic dark matter search: neutron stars in matter-rich environments capture which, for interstate mass splittings between about $45 - 285 \ \rm MeV$, will annihilate away before becoming fully trapped inside the object. This means sizable fraction of particles can while being outside star, producing star-focused gamma-rays and neutrinos. analyze this effect first time target star population Galactic Center, where large content makes signal most significant. Depending on...
Dark kinetic heating of neutron stars has been previously studied as a promising dark matter detection avenue. Kinetic occurs when is sped up to relativistic speeds in the gravitational well high-escape velocity objects, and deposits energy after becoming captured by object, thereby increasing its temperature. We show that can be significant even objects with low-escape velocities, such exoplanets brown dwarfs, discovery potential searches. This occur if there long-range force, creating...
We demonstrate that nongravitational interactions between dark matter and baryonic can affect structural properties of galaxies. Detailed galaxy simulations analytic estimates which collects inside white dwarf stars ignites type Ia supernovae substantially alter star formation, stellar feedback, the halo density profile through a induced feedback process, distinct from usual supernova in Published by American Physical Society 2024
Abstract Minerals excavated from the Earth's crust contain gigayear-long astroparticle records, which can be read out using acid etching and microscopy, providing unmatched sensitivity to high mass dark matter. A roughly millimetre size slab of 500 million year old muscovite mica, calibrated analyzed by Snowden-Ifft et al. in 1990, revealed no signs matter recoils placed competitive limits on nuclear interactions for sub-TeV different analysis larger mica slabs 1986 Price Salamon searched...
Deterministic communications are required for industrial environments, yet their realization is a challenging task. Time-Sensitive Networking (TSN) intended to enable deterministic communication over inexpensive Ethernet networks. Standardized by the IEEE TSN working group, enables precise control of time synchronization, traffic shaping, reliability enhancements, and network administration answer demands applications. Subsequently, there significant need turnkey research implementation...
Many envisioned applications for the Tactile Internet require latencies that cannot be achieved by current wireless networks. In this paper, we present a method to optimize reliability of live stream using multiple paths. Compared other approaches, our does not rely on feedback achieve and thus add delay retransmission attempts. We use diversity paths compensate loss capacity in individual By an FEC code generate redundant data transmission is more robust against fluctuations single...
A bstract Direct detection is a powerful means of searching for particle physics evidence dark matter (DM) heavier than about GeV with 𝒪(kiloton) volume, low-threshold detectors. In many scenarios, some fraction the DM may be boosted to large velocities enhancing and generally modifying possible signatures. We investigate scenario where 100% at Earth due new attractive long-range forces. This leads two main improvements in capabilities: (1) boost allows detectable signatures well below...
Random linear network coding (RLNC) can greatly aid data transmission in lossy wireless networks. However, RLNC requires computationally complex matrix multiplications and inversions finite fields (Galois fields). These computations are highly demanding for energy-constrained mobile devices. The presented case study evaluates hardware acceleration strategies the context of Tensilica Xtensa LX5 processor with tensilica instruction set extension (TIE). More specifically, we develop TIEs...
Abstract Light bosonic dark matter can form gravitationally bound states known as boson stars. In this work, we explore a new signature of these objects interacting with the interstellar medium (ISM). We show how small effective couplings between and nucleon lead to potential that accelerates ISM baryons they transit star, making within radiate at high rate energy. The low density, however, implies majority Galactic stars will be too faint observable through effect. By contrast, diffuse...
Minerals excavated from the Earth's crust contain gigayear-long astroparticle records, which can be read out using acid etching and microscopy, providing unmatched sensitivity to high mass dark matter. A roughly millimetre size slab of 500 million year old muscovite mica, calibrated analyzed by Snowden-Ifft et al.~in 1990, revealed no signs matter recoils placed competitive limits on nuclear interactions for sub-TeV different analysis larger mica slabs in 1986 Price Salamon searched strongly...
The rapid advance of Cyber Physical Systems (CPSs) in the Industrial Internet Of Things (IIoT) environment is accelerating fourth industrial revolution, collectively known as Industry 4.0. With greater numbers CPSs at field level, an increasing number solutions from Information Technology (IT) are finding application Operation (OT). diffusion hindered by strong boundary between IT and OT. Due to lack real-time capable communication IT, this formed. extension standard Ethernet, which...