Publications (24)
Calibration and Physics with ARA Station 1: A Unique Askaryan Radio Array Detector
M. F. H Seikh, D. Z. Besson, S. Ali +70
The Askaryan Radio Array Station 1 (A1), the first among five autonomous stations deployed for the ARA experiment at the South Pole, is a unique ultra-high energy neutrino (UHEN) d…
El Gordo needs El Anzuelo: Probing the structure of cluster members with multi-band extended arcs in JWST data
A. Galan, G. B. Caminha, J. Knollmüller +2
Gravitational lensing by galaxy clusters involves hundreds of galaxies over a large redshift range and increases the likelihood of rare phenomena (supernovae, dark substructures, e…
Observation of Reconstructable Radio Emission Coincident with an X-Class Solar Flare in the Askaryan Radio Array Prototype Station
P. Allison, S. Archambault, J. Auffenberg +74
The Askaryan Radio Array (ARA) reports an observation of radio emission coincident with the "Valentine's Day" solar flare on Feb. 15, 2011 in the prototype "Testbed" st…
Comment on `Formation of a Dodecagonal Quasicrystalline Phase in a Simple Monatomic Liquid'
J. Roth
In a recent paper M. Dzugutov, Phys. Rev. Lett. 70 2924 (1993), describes a molecular dynamics cooling simulation where he obtained a large monatomic dodecagonal quasicrystal from…
Lateral Distribution of Muons in IceCube Cosmic Ray Events
IceCube Collaboration, R. Abbasi, Y. Abdou +277
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 interac…
Solid-phase structures of the Dzugutov pair potential
J. Roth, A. R. Denton
In recent computer simulations of a simple monatomic system interacting via the Dzugutov pair potential, freezing of the fluid into an equilibrium dodecagonal quasicrystal has been…
Observation of In-ice Askaryan Radiation from High-Energy Cosmic Rays
ARA Collaboration, N. Alden, S. Ali +74
We present the first experimental evidence for in-ice Askaryan radiation -- coherent charge-excess radio emission -- from high-energy particle cascades developing in the Antarctic…
Recent Results from The Askaryan Radio Array
ARA Collaboration, P. Allison, S. Archambault +61
The Askaryan Radio Array (ARA) is an ultra-high energy (UHE) neutrino telescope at the South Pole consisting of an array of radio antennas aimed at detecting the Askaryan radiation…
IceTop: The surface component of IceCube
IceCube Collaboration, R. Abbasi, Y. Abdou +280
IceTop, the surface component of the IceCube Neutrino Observatory at the South Pole, is an air shower array with an area of 1 km2. The detector allows a detailed exploration of the…
Proliferation of anomalous symmetries in colloidal monolayers subjected to quasiperiodic light fields
J. Mikhael, M. Schmiedeberg, S. Rausch +3
Quasicrystals provide a fascinating class of materials with intriguing properties. Despite a strong potential for numerous technical applications, the conditions under which quasic…
Random tiling quasicrystals in three dimensions
W. Ebinger, J. Roth, H. -R. Trebin
Three-dimensional icosahedral random tilings with rhombohedral cells are studied in the semi-entropic model. We introduce a global energy measure defined by the variance of the qua…
A low-threshold ultrahigh-energy neutrino search with the Askaryan Radio Array
P. Allison, S. Archambault, J. J. Beatty +77
In the pursuit of the measurement of the still-elusive ultrahigh-energy (UHE) neutrino flux at energies of order EeV, detectors using the in-ice Askaryan radio technique have incre…
Constraints on the Diffuse Flux of Ultra-High Energy Neutrinos from Four Years of Askaryan Radio Array Data in Two Stations
ARA Collaboration, P. Allison, S. Archambault +71
The Askaryan Radio Array (ARA) is an ultra-high energy (UHE, eV) neutrino detector designed to observe neutrinos by searching for the radio waves emitted by the relativi…
An improved method for measuring muon energy using the truncated mean of dE/dx
IceCube collaboration, R. Abbasi, Y. Abdou +277
The measurement of muon energy is critical for many analyses in large Cherenkov detectors, particularly those that involve separating extraterrestrial neutrinos from the atmospheri…
Design and Performance of an Interferometric Trigger Array for Radio Detection of High-Energy Neutrinos
P. Allison, S. Archambault, R. Bard +69
Ultra-high energy neutrinos are detectable through impulsive radio signals generated through interactions in dense media, such as ice. Subsurface in-ice radio arrays are a promisin…
Dynamic fracture of icosahedral model quasicrystals: A molecular dynamics study
F. Rösch, Ch. Rudhart, J. Roth +2
Ebert et al. [Phys. Rev. Lett. 77, 3827 (1996)] have fractured icosahedral Al-Mn-Pd single crystals in ultrahigh vacuum and have investigated the cleavage planes in-situ by scannin…
Measurement of the real dielectric permittivity epsilon_r of glacial ice
P. Allison, S. Archambault, J. Auffenberg +66
Using data collected by the Askaryan Radio Array (ARA) experiment at the South Pole, we have used long-baseline propagation of radio-frequency signals to extract information on the…
Sensitivity of the As-Built Askaryan Radio Array to Ultra-High Energy Neutrinos
ARA Collaboration, N. Alden, S. Ali +71
The Askaryan Radio Array (ARA) is an ultra-high energy (UHE) neutrino observatory designed to detect the impulsive radio waves produced by relativistic particle cascades in the Ant…
Hidden in Plain Sight: Searching for Dark Companions to Bright Stars with the Large Binocular Telescope and SHARK-VIS
D. M. Rowan, Todd A. Thompson, C. S. Kochanek +14
We report the results from a pilot study to search for black holes and other dark companions in binary systems using direct imaging with SHARK-VIS and the iLocater pathfinder "Lili…
Random Tiling Transition in Three Dimensions
W. Ebinger, J. Roth, H. -R. Trebin
Three-dimensional icosahedral random tilings are studied in the semi-entropic model. We introduce a global energy measure defined by the variance of the quasilattice points in orth…
Spinorial Representation of Submanifolds in Riemannian Space Forms
P. Bayard, M. -A. Lawn, J. Roth
In this paper we give a spinorial representation of submanifolds of any dimension and codimension into Riemannian space forms in terms of the existence of so called generalized Kil…
Triboelectric Backgrounds to radio-based UHE Neutrino Exeperiments
J. A. Aguilar, A. Anker, P. Allison +114
The proposed IceCube-Gen2 (ICG2) seeks to instrument ~500 sq. km of Antarctic ice near the geographic South Pole with radio antennas, in order to observe the highest energy (E>1 Ee…
Modeling the refractive index profile n(z) of polar ice for ultra-high energy neutrino experiments
S. Ali, P. Allison, S. Archambault +67
We have developed an in-situ index of refraction profile n(z) for cold polar ice, using the transit times of radio signals broadcast from an englacial transmitter to 2-5 km distant…
Spinorial Characterizations of Surfaces into 3-dimensional pseudo-Riemannian Space Forms
M. -A. Lawn, J. Roth
We give a spinorial characterization of isometrically immersed surfaces of arbitrary signature into 3-dimensional pseudo-Riemannian space forms. For Lorentzian surfaces, this gener…