Search Results - "Troitsky, S. V"
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Parameters of Axion-Like Particles Required to Explain High-Energy Photons from GRB 221009A
Published in JETP letters (01-12-2022)“…Recent astrophysical transient Swift J1913.1+1946 is possibly associated with the gamma-ray burst GRB 221009A at the redshift . The transient was accompanied…”
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The K-meson form factor and charge radius: linking low-energy data to future Jefferson Laboratory measurements
Published in The European physical journal. C, Particles and fields (01-07-2017)“…Starting from a successful model of the π -meson electromagnetic form factor, we calculate a similar form factor, F K ( Q 2 ) , of the charged K meson for a…”
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Linking infrared and ultraviolet parameters of pion-like states in strongly coupled gauge theories
Published in The European physical journal. C, Particles and fields (01-11-2018)“…It has been shown previously that in a relativistic constituent-quark model, predictions for the electromagnetic form factor of the π meson match not only…”
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Axion-like particles and the propagation of gamma rays over astronomical distances
Published in JETP letters (2017)“…In this brief review, possible manifestations of mixing between axion-like particles (ALPs) and energetic photons propagating over astronomical distances are…”
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Galactic Contribution to the High-energy Neutrino Flux Found in Track-like IceCube Events
Published in Astrophysical journal. Letters (01-12-2022)“…Abstract Astrophysical sources of neutrinos detected by large-scale neutrino telescopes remain uncertain. While there exist statistically significant…”
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Growing evidence for high-energy neutrinos originating in radio blazars
Published in Monthly notices of the Royal Astronomical Society (30-05-2023)“…ABSTRACT Evidence for bright-radio blazars being high-energy neutrino sources was found in recent years. However, specifics of how and where these particles…”
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Search for astrophysical PeV gamma rays from point sources with Carpet-2
Published in EPJ Web of conferences (2019)“…Early results of the search for E γ > 1 PeV cosmic photons from point sources with the data of Carpet–2 , an air-shower array equipped with a 175 m 2 muon…”
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Breaks in gamma-ray spectra of distant blazars and transparency of the Universe
Published in JETP letters (01-11-2014)“…Energetic gamma rays scatter on soft background radiation when propagating through the Universe, producing electron-positron pairs (A.I. Nikishov, Sov. Phys…”
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Anomalous Cosmic-Ray Correlations Revisited with a Complete Full-Sky Sample of BL Lac Type Objects
Published in JETP letters (01-03-2024)“…Cosmic rays with energies above 10 19 eV, observed in 1999–2004 by the High Resolution Fly’s Eye (HiRes) experiment in the stereoscopic mode, were found to…”
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Muon content of ultrahigh-energy air showers: Yakutsk data versus simulations
Published in JETP letters (01-04-2008)“…A sample of 33 extensive air showers (EASs) with estimated primary energies above 2 × 10 19 eV and high-quality muon data recorded by the Yakutsk EAS array is…”
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Upper limit on the ultrahigh-energy photon flux from AGASA and Yakutsk data
Published in Physical review. D, Particles, fields, gravitation, and cosmology (01-03-2006)Get full text
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An extremely energetic cosmic ray observed by a surface detector array
Published in Science (American Association for the Advancement of Science) (24-11-2023)“…Cosmic rays are energetic charged particles from extraterrestrial sources, with the highest-energy events thought to come from extragalactic sources. Their…”
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Evidence for a Connection between the γ-Ray and the Highest Energy Cosmic-Ray Emissions by BL Lacertae Objects
Published in The Astrophysical journal (01-10-2002)Get full text
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Search for directional associations between baikal gigaton volume detector neutrino-induced cascades and high-energy astrophysical sources
Published in Monthly notices of the Royal Astronomical Society (21-09-2023)“…ABSTRACT Baikal-GVD has recently published its first measurement of the diffuse astrophysical neutrino flux, performed using high-energy cascade-like events…”
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High-energy neutrino-induced cascade from the direction of the flaring radio blazar TXS 0506 + 056 observed by Baikal-GVD in 2021
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT The existence of high-energy astrophysical neutrinos has been unambiguously demonstrated, but their sources remain elusive. IceCube reported an…”
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Carpet—2 Search for Gamma Rays above 100 TeV in Coincidence with HAWC and IceCube Alerts
Published in JETP letters (01-12-2020)“…We report on the search of astrophysical gamma rays with energies in the 100 TeV to several PeV range arriving in directional and temporal coincidence with…”
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Upper Limits on the Isotropic Diffuse Flux of Cosmic PeV Photons from Carpet-2 Observations
Published in JETP letters (01-02-2023)“…Isotropic diffuse gamma-ray flux in the PeV energy band is an important tool for multimessenger tests of models of the origin of high-energy astrophysical…”
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A comparative study of correlations between arrival directions of ultra-high-energy cosmic rays and positions of their potential astrophysical sources
Published in Astroparticle physics (01-03-2005)“…We consider various classes of persistent extragalactic astrophysical sources which have been suggested in literature as possible emitters of ultra-high-energy…”
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Carpet-2 Search for PeV Gamma Rays Associated with IceCube High-Energy Neutrino Events
Published in JETP letters (01-02-2019)“…Carpet-2 is an air-shower array at Baksan Valley, Russia, equipped with a large-area (175 m 2 ) muon detector, which makes it possible to separate primary…”
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Muon Content of Extensive Air Showers: Comparison of the Energy Spectra Obtained by the Sydney University Giant Air-Shower Recorder and by the Pierre Auger Observatory
Published in Physics of atomic nuclei (01-11-2019)“…The Sydney University Giant Air-shower Recorder(SUGAR) measured the energy spectrum of ultra-high-energy cosmic rays reconstructed from muon detector reading…”
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