activity
20042026
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 4.4k across the 122 of their papers we have counts for

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10 papers · 1 filter

astro-ph.HE2026

Investigating a TeV-Halo Candidate around PSR J1928+1746 with HAWC

The HAWC Collaboration, R. Alfaro, C. Alvarez +94

We present an updated High-Altitude Water Cherenkov (HAWC) analysis of the crowded Galactic-plane area near PSR J1928+1746, which was previously linked to the extended source 3HWC…

astro-ph.HE2026★ 1 cited

Constraints on axion-like particles from ultra-high-energy observations of M87 with the HAWC observatory

R. Alfaro, C. Alvarez, A. Andrés +95

In this work, we perform an indirect search for axion-like particles (ALPs) through their hypothesized mixing with photons in the presence of magnetic fields. ALPs are a well-motiv…

astro-ph.HE2026

Constraining the Photon Intensity of Extragalactic Background Light with the HAWC Observatory for the Blazar Mrk 421

R. Alfaro, C. Alvarez, A. Andrés +79

The blazar Mrk 421 exhibits rapid variability over a wide range of timescales. Spectral differences have been observed during the different emission states of Mrk 421. During the h…

astro-ph.HE2026

Search for TeV emission from spider millisecond pulsars with HAWC

R. Alfaro, E. Anita-Rangel, M. Araya +90

Millisecond pulsars (MSPs) are observed to emit multi-wavelength radiation, from radio to GeV. Spider MSPs, which interact with their low-mass companion in close orbit (orbital per…

astro-ph.HE2026

HAWC Study on the Ultra-High-Energy Gamma-Ray Emissions from the Pulsar Wind Nebula G32.64+0.53

R. Alfaro, C. Alvarez, E. Anita-Rangel +91

Multi-TeV gamma-ray emission around eHWC J1850+001 (a source from the first HAWC catalog of gamma-ray sources emitting above 56 TeV) is spatially coincident with the pulsar wind ne…

hep-ph2026

Charged Higgs Decay to Bottom and Charm Quarks from -Flavored Two Higgs Doublet Models

Alfredo Aranda, J. Hernández-Sánchez, Andrea Montiel +1

The phenomenology of a charged Higgs present in a model with two Higgs SU(2) doublets and a flavor symmetry is analyzed. It is shown that it is possible to generate an enhanc…

astro-ph.HE2026

Investigating IceCube Neutrino Alerts with the HAWC -Ray Observatory

The HAWC Collaboration, R. Alfaro, C. Alvarez +95

Neutrino emission from astrophysical sources has long been considered a signature of cosmic-ray acceleration. The IceCube neutrino observatory has observed a diffuse flux of TeV-Pe…

astro-ph.HE2026

Improved Heavy Dark Matter Annihilation Search from Dwarf Galaxies with HAWC

A. Albert, R. Alfaro, C. Alvarez +103

Understanding dark matter's elusive nature is crucial for the framework of particle physics and expanding the Standard Model. This analysis utilizes the High Altitude Water Cherenk…

astro-ph.HE2026

The Fourth HAWC Catalog of Very-High-Energy Gamma-Ray Sources

R. Alfaro, C. Alvarez, E. Anita-Rangel +87

We present an updated catalog of TeV gamma-ray sources based on the fifth pass of data from the High-Altitude Water Cherenkov (HAWC) Observatory. This release benefits from improve…

astro-ph.HE2026

Constraints on Axion-Like Particles from Ultra-High-Energy Observations of 3HWC J1908+063 with HAWC

R. Alfaro, C. Alvarez, A. Andres +92

Axion-like particles (ALPs) are hypothetical particles and compelling candidates for cold dark matter. Their existence could be probed through their conversions into photons in the…