Publications associées à Gerbe atmosphérique

Breaking Size-Segregation Waves in Granular Avalanches

We experimentally prove the existence of the theoretically predicted breaking size-segregation wave within a binary granular avalanche. This complex structure involves the recirculation of particles through a pattern of shocks and rarefaction waves, and ca ...

2014

IceTop: The surface component of IceCube

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

IceTop, the surface component of the IceCube Neutrino Observatory at the South Pole, is an air shower array with an area of 1 km(2). The detector allows a detailed exploration of the mass composition of primary cosmic rays in the energy range from about 10 ...

Elsevier Science Bv2013

Probing the origin of cosmic rays with extremely high energy neutrinos using the IceCube Observatory

Matthias Wolf, Shirit Cohen, Sofia Vallecorsa, Mark Tobin, Mathieu Ribordy, Xiaoxia Bai

We have searched for extremely high energy neutrinos using data taken with the IceCube detector between May 2010 and May 2012. Two neutrino-induced particle shower events with energies around 1 PeV were observed, as reported previously. In this work, we in ...

Amer Physical Soc2013

Lateral distribution of muons in IceCube cosmic ray events

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

In cosmic ray air showers, the muon lateral separation from the center of the shower is a measure of the transverse momentum that the muon parent acquired in the cosmic ray interaction. IceCube has observed cosmic ray interactions that produce muons latera ...

Amer Physical Soc2013

Cosmic ray composition and energy spectrum from 1-30 PeV using the 40-string configuration of IceTop and IceCube

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

The mass composition of high energy cosmic rays depends on their production, acceleration, and propagation. The study of cosmic ray composition can therefore reveal hints of the origin of these particles. At the South Pole, the IceCube Neutrino Observatory ...

Elsevier Science Bv2013

Design and operation of FACT - the first G-APD Cherenkov telescope

Werner Lustermann, Mathieu Ribordy, Thomas Günther Bretz, Camille Haller

The First G-APD Cherenkov Telescope (FACT) is designed to detect cosmic gamma-rays with energies from several hundred GeV up to about 10 TeV using the Imaging Atmospheric Cherenkov Technique. In contrast to former or existing telescopes, the camera of the ...

Iop Publishing Ltd2013

First Observation of PeV-Energy Neutrinos with IceCube

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

We report on the observation of two neutrino-induced events which have an estimated deposited energy in the IceCube detector of 1.04 +/- 0.16 and 1.14 +/- 0.17 PeV, respectively, the highest neutrino energies observed so far. These events are consistent wi ...

American Physical Society2013

An absence of neutrinos associated with cosmic-ray acceleration in gamma-ray bursts

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

Very energetic astrophysical events are required to accelerate cosmic rays to above 10(18) electronvolts. GRBs (c-ray bursts) have been proposed as possible candidate sources(1-3). In the GRB 'fireball' model, cosmic-ray acceleration should be accompanied ...

2012

The design and performance of IceCube DeepCore

Matthias Wolf, Shirit Cohen, Mathieu Ribordy, Xiaoxia Bai

The IceCube neutrino observatory in operation at the South Pole, Antarctica, comprises three distinct components: a large buried array for ultrahigh energy neutrino detection, a surface air shower array, and a new buried component called DeepCore. DeepCore ...

2012

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Gerbe atmosphérique

Breaking Size-Segregation Waves in Granular Avalanches

TORCH-a Cherenkov based time-of-flight detector

IceTop: The surface component of IceCube

Probing the origin of cosmic rays with extremely high energy neutrinos using the IceCube Observatory

Lateral distribution of muons in IceCube cosmic ray events

Cosmic ray composition and energy spectrum from 1-30 PeV using the 40-string configuration of IceTop and IceCube

Design and operation of FACT - the first G-APD Cherenkov telescope

First Observation of PeV-Energy Neutrinos with IceCube

An absence of neutrinos associated with cosmic-ray acceleration in gamma-ray bursts

The design and performance of IceCube DeepCore

Graph Chatbot

Chattez avec Graph Search

Probing the origin of cosmic rays with extremely high energy neutrinos using the IceCube Observatory

Cosmic ray composition and energy spectrum from 1-30 PeV using the 40-string configuration of IceTop and IceCube

Breaking Size-Segregation Waves in Granular Avalanches

TORCH-a Cherenkov based time-of-flight detector

Lateral distribution of muons in IceCube cosmic ray events

IceTop: The surface component of IceCube

First Observation of PeV-Energy Neutrinos with IceCube

The design and performance of IceCube DeepCore

Design and operation of FACT - the first G-APD Cherenkov telescope

An absence of neutrinos associated with cosmic-ray acceleration in gamma-ray bursts