Results 71 to 80 of about 86,500 (230)
Do the LHAASO Galactic diffuse emission data require a contribution from unresolved sources? [PDF]
The Large High-Altitude Air Shower Observatory (LHAASO) collaboration has recently measured the ultra-high energy gamma-ray diffuse emission (10 − 103 TeV) after masking the contribution of known sources.
Vecchiotti Vittoria+6 more
doaj +1 more source
The Standard Model Higgs potential seems unstable at field values h > h top ~ 1010 GeV. Vacuum decay can be triggered by N ~ 4π/λ ~ 1000 overlapped Higgs bosons with energy λ $$ \sqrt{\lambda } $$ h top. However, this configuration is stimulated by ultra-
Alessandro Strumia
doaj +1 more source
Unveiling the Gannon Storm: How Ground‐Based Magnetometers Mapped Its Global Impact
Abstract The Gannon Storm, also known as the Mother's Day Storm of May 2024, ranks among the most intense geomagnetic disturbances of the space age, triggered by a powerful interplanetary coronal mass ejection. Leveraging data from over 100 globally distributed magnetic observatories, this study provides a detailed analysis of its ground‐level impacts,
Paola De Michelis, Giuseppe Consolini
wiley +1 more source
The IceCube Neutrino Observatory III: Cosmic Rays [PDF]
Cosmic rays and related measurements: IceTop overview; IceTop calibration; Cosmic ray composition; Air shower measurements; Studies of cosmic ray muons; Studies of PeV gamma rays; Cosmic ray anisotropy; Forbush decrease; Submitted papers to the 32nd International Cosmic Ray Conference, Beijing 2011.
arxiv
The past and future 20-years endeavor for discovering origins of ultra-high energy cosmic rays -- Rapporteur's summary of cosmic ray indirect -- [PDF]
This article is the rapporteur's summary of the cosmic ray indirect sessions of the 38th International Cosmic Ray Conference in Nagoya, Japan. The rapporteur highlights cosmic ray indirect observatories around the world, and reviews a selection of the latest results regarding the cosmic ray energy spectrum, mass composition, anisotropy, hadronic ...
arxiv +1 more source
Ultra High Energy Cosmic Rays and Neutrinos [PDF]
We discuss the production of ultra high energy neutrinos coming from the propagation of ultra high energy cosmic rays and in the framework of top-down models for the production of these extremely energetic particles. We show the importance of the detection of ultra high energy neutrinos that can be a fundamental diagnostic tool to solve the discrepancy
openaire +3 more sources
Why Schonland Failed in His Search for Runaway Electrons From Thunderstorms
Abstract B.F.J. Schonland, advised and encouraged by C.T.R. Wilson, made two unsuccessful searches for runaway electrons from thunderstorms in the 1930s. These findings stand in marked contrast with research results over the last decade and ironically set this field of research back many decades.
A. Chilingarian+3 more
wiley +1 more source
Cosmic Rays and Gamma Ray Bursts From Microblazars [PDF]
Highly relativistic jets from merger and accretion induced collapse of compact stellar objects, which may produce the cosmological gamma ray bursts (GRBs), are also very efficient and powerful cosmic ray accelerators. The expected luminosity, energy spectrum and chemical composition of cosmic rays from Galactic GRBs, most of which do not point in our ...
arxiv
On the Potential Cosmogenic Origin of the Ultra-high-energy Event KM3-230213A
On 2023 February 13, the KM3NeT/ARCA telescope observed a track-like event compatible with a ultra-high-energy muon with an estimated energy of 120 PeV, produced by a neutrino with an even higher energy, making it the most energetic neutrino event ever ...
O. Adriani+292 more
doaj +1 more source
This study presents a novel polyphenol‐nanozyme‐armored probiotic system (ECA@EcN) for enhanced treatment of inflammatory bowel disease (IBD). By integrating chitosan‐modified epigallocatechin gallate (EGCG‐CS) with gold nanozymes, the system effectively scavenges ROS, improves probiotic viability, and restores gut microbiota balance.
Yong Zhu+12 more
wiley +1 more source