Phone: (808) 956-9157
Email: Gorhamphys.hawaii.edu
WWW: Web Site

Radio Detection of High Energy Particles:
* RADHEP
* Goldstone Lunar Ultra-high energy neutrino Experiment (GLUE)
* Antarctic Impulsive Transient Antenna (ANITA)
* Measurements of the Askaryan effect
* Measurements of salt formation radio transparency
* SalSA: Saltdome Shower Array, a Teraton Neutrino detector concept

2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012


Latest Journal Publications

1. "Observation of Reconstructable Radio Emission Coincident with an X-Class Solar Flare in the Askaryan Radio Array Prototype Station", arXiv:1807.03335 (Jul 2018)
2. "Dynamic tunable notch filters for the Antarctic Impulsive Transient Antenna (ANITA)", Nuclear Inst. and Methods in Physics Research, A, Volume 894, p. 47-56 (Jun 2018)
3. "Constraints on the diffuse high-energy neutrino flux from the third flight of ANITA", arXiv:1803.02719 (Mar 2018)
4. "Observation of an Unusual Upward-going Cosmic-ray-like Event in the Third Flight of ANITA", arXiv:1803.05088 (Mar 2018)
5. "Antarctic Surface Reflectivity Calculations and Measurements from the ANITA-4 and HiCal-2 Experiments", arXiv:1801.08909 (Jan 2018)
6. "Measurement of the real dielectric permittivity epsilon_r of glacial ice", arXiv:1712.03301 (Dec 2017)
7. "Calibration of the logarithmic-periodic dipole antenna (LPDA) radio stations at the Pierre Auger Observatory using an octocopter", Journal of Instrumentation, Volume 12, Issue 10, pp. T10005 (2017) (Oct 2017)
8. "Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory", Astroparticle Physics, Volume 95, p. 44-56 (Oct 2017)
9. "Inferences on Mass Composition and Tests of Hadronic Interactions from 0.3 to 100 EeV using the water-Cherenkov Detectors of the Pierre Auger Observatory", arXiv:1710.07249 (Oct 2017)
10. "The HiCal 2 Instrument: Calibration and Antarctic Surface Reflectivity Measurement for the ANITA Experiment", arXiv:1710.11175 (Oct 2017)
11. "Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 × 1018 eV", Science, Volume 357, Issue 6357, pp. 1266-1270 (2017) (Sep 2017)
12. "Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory", Journal of Cosmology and Astroparticle Physics, Issue 06, article id. 026 (2017) (Jun 2017)
13. "Search for photons with energies above 1018 eV using the hybrid detector of the Pierre Auger Observatory", Journal of Cosmology and Astroparticle Physics, Issue 04, article id. 009 (2017) (Apr 2017)
14. "Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory", Journal of Cosmology and Astroparticle Physics, Issue 04, article id. 038 (2017) (Apr 2017)
15. "A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory", The Astrophysical Journal Letters, Volume 837, Issue 2, article id. L25, 7 pp. (2017) (Mar 2017)
16. "Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatory", Journal of Instrumentation, Volume 12, Issue 03, pp. P03002 (2017) (Mar 2017)
17. "Antarctic Surface Reflectivity Measurements from the ANITA-3 and HiCal-1 Experiments", Journal of Astronomical Instrumentation, Volume 6, Issue 2, id. 1740002-213 (n/a 2017)
18. "Ultrahigh-energy neutrino follow-up of gravitational wave events GW150914 and GW151226 with the Pierre Auger Observatory", Physical Review D, Volume 94, Issue 12, id.122007 (Dec 2016)
19. "Evidence for a mixed mass composition at the 'ankle' in the cosmic-ray spectrum", Physics Letters B, Volume 762, p. 288-295 (Nov 2016)
20. "Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory", Physical Review Letters, Volume 117, Issue 19, id.192001 (Nov 2016)

Latest Conference Proceedings

1. "Site Characterization and Detector Development for the Greenland Neutrino Observatory", Proceedings of the 34th International Cosmic Ray Conference (ICRC2015). 30 July - 6 August, 2015. The Hague, The Netherlands. Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=236, id.1150 (Jul 2015)
2. "SLAC T-510: A beam-line experiment for radio emission from particle cascades in the presence of a magnetic field", Proceedings of the 34th International Cosmic Ray Conference (ICRC2015). 30 July - 6 August, 2015. The Hague, The Netherlands. Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=236, id.346 (Jul 2015)
3. "Measurements, system response, and calibration of the SLAC T-510 Experiment", Proceedings of the 34th International Cosmic Ray Conference (ICRC2015). 30 July - 6 August, 2015. The Hague, The Netherlands. Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=236, id.342 (Jul 2015)
4. "Modelling of radio emission in the SLAC T-510 Experiment using microscopic Geant4 simulations", Proceedings of the 34th International Cosmic Ray Conference (ICRC2015). 30 July - 6 August, 2015. The Hague, The Netherlands. Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=236, id.313 (Jul 2015)
5. "Ultra-high-energy cosmic ray flux and energy measurement with ANITA", Proceedings of the 34th International Cosmic Ray Conference (ICRC2015). 30 July - 6 August, 2015. The Hague, The Netherlands. Online at http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=236, id.272 (Jul 2015)
6. "First results from the microwave air yield beam experiment (MAYBE): Measurement of GHz radiation for ultra-high energy cosmic ray detection", UHECR 2012 - International Symposium on Future Directions in UHECR Physics, CERN, Geneva, Edited by K.-H. Kampert; M. Fukushima; R. Engel; B. Pattison; EPJ Web of Conferences, Volume 53, id.08008 (Jun 2013)
7. "The Microwave Air Yield Beam Experiment (MAYBE): measurement of GHz radiation for Ultra-High Energy Cosmic Rays detection", American Physical Society, APS April Meeting 2012, March 31-Apr 3, 2012, abstract #W7.007 (Mar 2012)