J. Stapleton

Reconstruction of inclined air showers detected with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +485

We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $6 0^{\circ}$ detected with the surface array of the Pierre Auger Observa…

hep-ex2016

Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +435

Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models with…

Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +490

The Pierre Auger Collaboration has reported evidence for anisotropy in the distribution of arrival directions of the cosmic rays with energies $E > E_{t h} = 5.5 \times 1 0^{19}$ eV. Thes…

A search for point sources of EeV photons

Pierre Auger Collaboration, A. Aab, P. Abreu +483

Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point…

The effect of the geomagnetic field on cosmic ray energy estimates and large scale anisotropy searches on data from the Pierre Auger Observatory

P. Abreu, M. Aglietta, E. J. Ahn +495

We present a comprehensive study of the influence of the geomagnetic field on the energy estimation of extensive air showers with a zenith angle smaller than $6 0^{\circ}$ , detected a…

Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of $1 0^{19}$ eV at the Pierre Auger Observatory and the Telescope Array

The Pierre Auger, Telescope Array Collaborations, : +605

Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coeffi…

The Lateral Trigger Probability function for the Ultra-High Energy Cosmic Ray Showers detected by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +495

In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an extensive air shower (EAS) to trigger an individual detector of a…

physics.acc-ph2021

Beam dynamics corrections to the Run-1 measurement of the muon anomalous magnetic moment at Fermilab

T. Albahri, A. Anastasi, K. Badgley +174

This paper presents the beam dynamics systematic corrections and their uncertainties for the Run-1 data set of the Fermilab Muon g-2 Experiment. Two corrections to the measured muo…

Search for First Harmonic Modulation in the Right Ascension Distribution of Cosmic Rays Detected at the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +466

We present the results of searches for dipolar-type anisotropies in different energy ranges above $2.5 \times 1 0^{17}$ eV with the surface detector array of the Pierre Auger Observa…

The Pierre Auger Observatory IV: Operation and Monitoring

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Technical reports on operations and monitoring of the Pierre Auger Observatory

astro-ph.HE2013

Pierre Auger Observatory and Telescope Array: Joint Contributions to the 33rd International Cosmic Ray Conference (ICRC 2013)

The Telescope Array, Pierre Auger Collaborations, : +619

Joint contributions of the Pierre Auger and Telescope Array Collaborations to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013: cross-calibration of…

astro-ph.HE2015

The Pierre Auger Observatory: Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)

The Pierre Auger Collaboration, A. Aab, P. Abreu +449

Contributions of the Pierre Auger Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The Netherlands

The Pierre Auger Observatory I: The Cosmic Ray Energy Spectrum and Related Measurements

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Studies of the cosmic ray energy spectrum at the highest energies with the Pierre Auger Observatory

hep-ex2026

Final Report on the Measurement of the Positive Muon Anomalous Magnetic Moment at Fermilab to 127 ppb

2 Collaboration, D. P. Aguillard, T. Albahri +192

This report details the final measurement of the muon magnetic anomaly, $a_{I^} ¼ = (g_{I^} ¼ - 2) /2$ , by the Muon $g - 2$ experiment at Fermi National Accelerator Laboratory (FNAL), using posit…

astro-ph.HE2016

Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +436

The azimuthal asymmetry in the risetime of signals in Auger surface detector stations is a source of information on shower development. The azimuthal asymmetry is due to a combinat…

astro-ph.HE2016

Search for correlations between the arrival directions of IceCube neutrino events and ultrahigh-energy cosmic rays detected by the Pierre Auger Observatory and the Telescope Array

The IceCube Collaboration, M. G. Aartsen, K. Abraham +863

This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured…

astro-ph.IM2012

The Rapid Atmospheric Monitoring System of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +508

The Pierre Auger Observatory is a facility built to detect air showers produced by cosmic rays above 10^17 eV. During clear nights with a low illuminated moon fraction, the UV fluo…

A Targeted Search for Point Sources of EeV Neutrons

The Pierre Auger Collaboration, A. Aab, P. Abreu +482

A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of…

hep-ex2022

Magnetic Field Measurement and Analysis for the Muon g-2 Experiment at Fermilab

T. Albahri, A. Anastasi, K. Badgley +170

The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a_{I^} ¼ = (g_{I^} ¼ - 2) /2$ of the muon to a combined precision of 0.46 parts per million wit…

hep-ex2024

Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

D. P. Aguillard, T. Albahri, D. Allspach +190

We present details on a new measurement of the muon magnetic anomaly, $a_{I^} ¼ = (g_{I^} ¼ - 2) /2$ . The result is based on positive muon data taken at Fermilab's Muon Campus during the 2019…

physics.ins-det2021

The fast non-ferric kicker system for the Muon $g - 2$ Experiment at Fermilab

A. P. Schreckenberger, D. Allspach, D. Barak +39

We describe the installation, commissioning, and characterization of the new injection kicker system in the Muon $g - 2$ Experiment (E989) at Fermilab, which makes a precision measur…

The Pierre Auger Observatory V: Enhancements

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Ongoing and planned enhancements of the Pierre Auger Observatory

astro-ph.HE2013

Highlights from the Pierre Auger Observatory

Antoine Letessier-Selvon, A. Aab, P. Abreu +494

The Pierre Auger Observatory is the world's largest cosmic ray observatory. Our current exposure reaches nearly 40,000 km $^{2}$ str and provides us with an unprecedented quality data…

Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496

We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…

hep-ex2023

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

D. P. Aguillard, T. Albahri, D. Allspach +188

We present a new measurement of the positive muon magnetic anomaly, $a_{I^} ¼ \equiv (g_{I^} ¼ - 2) /2$ , from the Fermilab Muon $g - 2$ Experiment using data collected in 2019 and 2020. We…

astro-ph.IM2012

Antennas for the Detection of Radio Emission Pulses from Cosmic-Ray induced Air Showers at the Pierre Auger Observatory

P. Abreu, M. Aglietta, M. Ahlers +512

The Pierre Auger Observatory is exploring the potential of the radio detection technique to study extensive air showers induced by ultra-high energy cosmic rays. The Auger Engineer…

physics.ins-det2016

Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +451

Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to extend its range of detection and to directly measure the muon content of the particle…

astro-ph.HE2010

Update on the correlation of the highest energy cosmic rays with nearby extragalactic matter

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +472

Data collected by the Pierre Auger Observatory through 31 August 2007 showed evidence for anisotropy in the arrival directions of cosmic rays above the Greisen-Zatsepin-Kuz'min ene…

hep-ex2021

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm

B. Abi, T. Albahri, S. Al-Kilani +234

We present the first results of the Fermilab Muon g-2 Experiment for the positive muon magnetic anomaly $a_{I^} ¼ \equiv (g_{I^} ¼ - 2) /2$ . The anomaly is determined from the precision measur…

astro-ph.HE2015

The IceCube Neutrino Observatory, the Pierre Auger Observatory and the Telescope Array: Joint Contribution to the 34th International Cosmic Ray Conference (ICRC 2015)

IceCube Collaboration, M. G. Aartsen, K. Abraham +884

We have conducted three searches for correlations between ultra-high energy cosmic rays detected by the Telescope Array and the Pierre Auger Observatory, and high-energy neutrino c…

The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +493

Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air…

hep-ex2025

Measurement of the Positive Muon Anomalous Magnetic Moment to 127 ppb

The Muon $g-2$ Collaboration, :, D. P. Aguillard +193

A new measurement of the magnetic anomaly $a_{I^} ¼$ of the positive muon is presented based on data taken from 2020 to 2023 by the Muon $g - 2$ Experiment at Fermi National Accelerator…

Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +468

The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic ray air showers. As AER…

astro-ph.HE2015

Pierre Auger Observatory and Telescope Array: Joint Contributions to the 34th International Cosmic Ray Conference (ICRC 2015)

Telescope Array Collaboration, R. U. Abbasi, M. Abe +573

Joint contributions of the Pierre Auger Collaboration and the Telescope Array Collaboration to the 34th International Cosmic Ray Conference, 30 July - 6 August 2015, The Hague, The…