A5067125897- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Stellar, planetary, and galactic studies
- Space Science and Extraterrestrial Life
- Banking stability, regulation, efficiency
- Galaxies: Formation, Evolution, Phenomena
- Opinion Dynamics and Social Influence
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Insurance and Financial Risk Management
- Astronomy and Astrophysical Research
- Media Influence and Politics
- CCD and CMOS Imaging Sensors
- Genomics, phytochemicals, and oxidative stress
- Social Media and Politics
- Housing Market and Economics
- Microfinance and Financial Inclusion
Johns Hopkins University
2023-2025
Harvey Mudd College
2022-2024
Claremont McKenna College
2021
Pitzer College
2021
Scripps College
2021
Dark matter may exist today in the form of ultraheavy composite bound states. Collisions between such dark states can release intense bursts radiation that include <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>γ</a:mi></a:math>-rays among final products. Thus, indirect detection signals unconventional <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>γ</c:mi></c:math>-ray bursts. Such have been missed not necessarily because their low...
Abstract We compute the detailed energy spectra of axions with two-photon coupling produced in stellar cores over a wide range masses. focus on main sequence stars and base our calculations interior profiles from MESA, for which we provide simple fits an appendix. The obtained axion spectra, combined recent models star formation history initial mass function, enable us to estimate properties diffuse background sourced by all universe. fluxes this its decay photons are subdominant but can...
Axionlike particles (ALPs) are predicted in many extensions of the standard model, and their masses can naturally be well below electroweak scale. In presence couplings to bosons, these could emitted flavor-changing B meson decays. We report herein a search for an ALP, a, reaction B^{±}→K^{±}a, a→γγ using data collected by BABAR experiment at SLAC. No significant signal is observed, 90% confidence level upper limits on ALP coupling bosons derived as function mass, improving current...
Axion-like particles (ALPs) are good candidates for mediators to the dark sector. We explore scenarios in which an ALP mediates interactions between matter and electroweak gauge bosons. These models yield testable electromagnetic signals astrophysical, cosmological, terrestrial probes. find promising prospects both indirect detection accelerator tests, with interesting parameter space already constrained by current experiments. Our work provides concrete benchmarks future tests of portal....
We study cultural dissemination in the context of an Axelrod-like agent-based model describing spread traits across a society, with added element social influence.This modification produces absorbing states exhibiting greater variation number and size distinct regions compared to original Axelrod model, we identify mechanism responsible for this amplification heterogeneity.We develop several new metrics quantitatively characterize heterogeneity geometric qualities these states.Additionally,...
Dark matter may exist today in the form of ultraheavy composite bound states. Collisions between such dark states can release intense bursts radiation that includes gamma-rays among final products. Thus, indirect-detection signals include unconventional gamma-ray bursts. Such have been missed not necessarily because their low arriving fluxes, but rather briefness and rareness. We point out whose non-detection thus far are due to latter be detected near future with existing planned...
Axion-like particles (ALPs) are good candidates for mediators to the dark sector. We explore scenarios in which an ALP mediates interactions between matter and electroweak gauge bosons. These models yield testable electromagnetic signals astrophysical, cosmological, terrestrial probes. find promising prospects both indirect detection accelerator tests, with interesting parameter space already constrained by current experiments. Our work provides concrete benchmarks future tests of portal.
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We compute the detailed energy spectra of axions with two-photon coupling produced in stellar cores over a wide range masses. focus on main sequence stars and base our calculations interior profiles from MESA, for which we provide simple fits an appendix. The obtained axion spectra, combined recent models star formation history initial mass function, enable us to estimate properties diffuse background sourced by all universe. fluxes this its decay photons are subdominant but can principle be...