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Mathieu Ribordy

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Related publications (79)

Page 4 of 4

First search for atmospheric and extraterrestrial neutrino-induced cascades with the IceCube detector

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We report on the first search for atmospheric and for diffuse astrophysical neutrino-induced showers (cascades) in the IceCube detector using 257 days of data collected in the year 2007-2008 with 22 strings active. A total of 14 events with energies above ...

American Physical Society2011

Search for relativistic magnetic monopoles with IceCube

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We present the first results in the search for relativistic magnetic monopoles with the IceCube detector, a subsurface neutrino telescope located in the South Polar ice cap containing a volume of 1 km(3). This analysis searches data taken on the partially ...

American Physical Society2013

All-particle cosmic ray energy spectrum measured with 26 IceTop stations

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 su ...

Elsevier Science Bv2013

Limits on Neutrino Emission from Gamma-Ray Bursts with the 40 String IceCube Detector

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

IceCube has become the first neutrino telescope with a sensitivity below the TeV neutrino flux predicted from gamma-ray bursts if gamma-ray bursts are responsible for the observed cosmic-ray flux above 10(18) eV. Two separate analyses using the half-comple ...

2011

South Pole glacial climate reconstruction from multi-borehole laser particulate stratigraphy

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

The IceCube Neutrino Observatory and its prototype, AMANDA, were built in South Pole ice, using powerful hot-water drills to cleanly bore >100 holes to depths up to 2500 m. The construction of these particle physics detectors provided a unique opportunity ...

Int Glaciol Soc2013

Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector

Matthias Wolf, Mathieu Ribordy, Shirit Cohen

We report on results of an all-sky search for high-energy neutrino events interacting within the IceCube neutrino detector conducted between May 2010 and May 2012. The search follows up on the previous detection of two PeV neutrino events, with improved se ...

American Association for the Advancement of Science2013

Introducing the CTA concept

Christophe Bauer, Francisco Sanchez, Mathieu Ribordy, Xiaoqing Zhou, Reto Frei, Etienne Antoine Julien Moulin, Thomas Günther Bretz, Michael Werner, Steve Couturier

The Cherenkov Telescope Array (CTA) is a new observatory for very high-energy (VHE) gamma rays. CTA has ambitions science goals, for which it is necessary to achieve full-sky coverage, to improve the sensitivity by about an order of magnitude, to span abou ...

Elsevier Science Bv2013

Search for ultra-high-energy neutrinos with AMANDA-II

Yi Wang, Xiaoxia Bai, Mathieu Ribordy, Levent Demirörs

A search for diffuse neutrinos with energies in excess of 105 GeV is conducted with AMANDA-II data recorded between 2000 and 2002. Above 107 GeV, the Earth is essentially opaque to neutrinos. This fact, combined with the limited overburden of the AMANDA-II ...

2008

Limits on a muon flux from Kaluza-Klein dark matter annihilations in the Sun from the IceCube 22-string detector

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

A search for muon neutrinos from Kaluza-Klein dark matter annihilations in the Sun has been performed with the 22-string configuration of the IceCube neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atm ...

American Physical Society2010

Novel technique for supernova detection with IceCube

Mathieu Ribordy

The current supernova detection technique used in IceCube relies on the sudden deviation of the summed photomultiplier noise rate from its nominal value during the neutrino burst, making IceCube a approximate to 3 Megaton effective detection volume - class ...

2012

IceCube sensitivity for low-energy neutrinos from nearby supernovae (vol 535, pg A109, 2011)

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

Edp Sciences S A2014

Observation Of Cosmic-Ray Anisotropy With The Icetop Air Shower Array

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We report on the observation of anisotropy in the arrival direction distribution of cosmic rays at PeV energies. The analysis is based on data taken between 2009 and 2012 with the IceTop air shower array at the south pole. IceTop, an integral part of the I ...

Iop Publishing Ltd2013

Search for neutrino-induced cascades with five years of AMANDA data

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We report on the search for electromagnetic and hadronic showers ("cascades") produced by a diffuse flux of extraterrestrial neutrinos in the AMANDA neutrino telescope. Data for this analysis were recorded during 1001 days of detector livetime in the years ...

2011

Measurement Of The Anisotropy Of Cosmic-Ray Arrival Directions With Icecube

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

We report the first observation of an anisotropy in the arrival direction of cosmic rays with energies in the multi-TeV region in the Southern sky using data from the IceCube detector. Between 2007 June and 2008 March, the partially deployed IceCube detect ...

2010

ERRATUM: “SEARCH FOR HIGH-ENERGY MUON NEUTRINOS FROM THE “NAKED-EYE” GRB 080319B WITH THE ICECUBE NEUTRINO TELESCOPE” (2009, ApJ, 701, 1721)

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

2009

Measurement of the cosmic ray energy spectrum with IceTop-73

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We report on the measurement of the all-particle cosmic ray energy spectrum with the IceTop air shower array in the energy range from 1.58 PeV to 1.26 EeV. The IceTop air shower array is the surface component of the IceCube Neutrino Observatory at the geog ...

American Physical Society2013

Measurement of Atmospheric Neutrino Oscillations with IceCube

Matthias Wolf, Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen

We present the first statistically significant detection of neutrino oscillations in the high-energy regime (> 20 GeV) from an analysis of IceCube Neutrino Observatory data collected in 2010 and 2011. This measurement is made possible by the low-energy thr ...

Amer Physical Soc2013

Electronics for the camera of the First G-APD Cherenkov Telescope (FACT) for ground based gamma-ray astronomy

Mathieu Ribordy, Thomas Günther Bretz

Within the FACT project, we construct a new type of camera based on Geiger-mode avalanche photodiodes (G-APDs). Compared to photomultipliers, G-APDs are more robust, need a lower operation voltage and have the potential of higher photon-detection efficienc ...

2012

Solar Energetic Particle Spectrum on 2006 December 13 Determined by IceTop

Xiaoxia Bai, Mathieu Ribordy, Levent Demirörs

2008