Shirit Cohen

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Publications associées (70)

Search for a Lorentz-violating sidereal signal with atmospheric neutrinos in IceCube

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Matthias Wolf

A search for sidereal modulation in the flux of atmospheric muon neutrinos in IceCube was performed. Such a signal could be an indication of Lorentz-violating physics. Neutrino oscillation models, derivable from extensions to the standard model, allow for ...

American Physical Society2010

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

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

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

First Neutrino Point-Source Results From The 22 String Icecube Detector

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-2008 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of live time. The final sample of 511 ...

2009

Determination of the atmospheric neutrino flux and searches for new physics with AMANDA-II

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

The AMANDA-II detector, operating since 2000 in the deep ice at the geographic South Pole, has accumulated a large sample of atmospheric muon neutrinos in the 100 GeV to 10 TeV energy range. The zenith angle and energy distribution of these events can be u ...

American Physical Society2009

Extending the search for neutrino point sources with iceCube above the horizon

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

Point source searches with the IceCube neutrino telescope have been restricted to one hemisphere, due to the exclusive selection of upward going events as a way of rejecting the atmospheric muon background. We show that the region above the horizon can be ...

2009

SEARCH FOR HIGH-ENERGY MUON NEUTRINOS FROM THE “NAKED-EYE” GRB 080319B WITH THE IceCube NEUTRINO TELESCOPE

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

We report on a search with the IceCube detector for high-energy muon neutrinos from GRB 080319B, one of the brightest gamma-ray bursts (GRBs) ever observed. The fireball model predicts that a mean of 0.1 events should be detected by IceCube for a bulk Lore ...

2009

Limits on a Muon Flux from Neutralino Annihilations in the Sun with the IceCube 22-String Detector

Xiaoxia Bai, Mathieu Ribordy, Shirit Cohen, Levent Demirörs

A search for muon neutrinos from neutralino annihilations in the Sun has been performed with the IceCube 22-string neutrino detector using data collected in 104.3 days of live time in 2007. No excess over the expected atmospheric background has been observ ...

2009

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

Evaporation from three water bodies of diﬀerent sizes and climates: Measurements and scaling analysis

Marc Parlange, Scott W. Tyler, Shirit Cohen, Gabriel George Katul

Evaporation from small reservoirs, wetlands, and lakes continues to be a theoretical and practical problem in surface hydrology and micrometeorology because atmospheric ﬂows above such systems can rarely be approximated as stationary and planar-homogeneous ...

2008

Evaporation from a small water reservoir: Direct measurements and estimates

Marc Parlange, Shirit Cohen

Summary Knowing the rate of evaporation from surface water resources such as chan¬nels and reservoirs is essential for precise management of the water balance. However, evaporation is difﬁcult to measure experimentally over water surfaces and several tech¬ ...

2008

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