Xiaoxia Bai

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Publications associées (76)

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

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

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

Lateral distribution of muons in IceCube cosmic ray events

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, 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 ...

American Physical Society2013

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

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

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

IceCube search for dark matter annihilation in nearby galaxies and galaxy clusters

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

We present the results of a first search for self-annihilating dark matter in nearby galaxies and galaxy clusters using a sample of high-energy neutrinos acquired in 339.8 days of live time during 2009/10 with the IceCube neutrino observatory in its 59-str ...

American Physical Society2013

Searches For High-Energy Neutrino Emission In The Galaxy With The Combined Icecube-Amanda Detector

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

We report on searches for neutrino sources at energies above 200 GeV in the Northern sky of the Galactic plane, using the data collected by the South Pole neutrino telescope, IceCube, and AMANDA. The Galactic region considered in this work includes the loc ...

Iop Publishing Ltd2013

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

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, 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

Measurement of South Pole ice transparency with the IceCube LED calibration system

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

The IceCube Neutrino Observatory, approximately 1 km(3) in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full ...

Elsevier Science Bv2013

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

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

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

Search for relativistic magnetic monopoles with IceCube

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

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

Measurement of Atmospheric Neutrino Oscillations with IceCube

Shirit Cohen, Mathieu Ribordy, Matthias Wolf, Xiaoxia Bai

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

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