John L. Harton Professor of Physics Colorado State University Fort Collins, Colorado 80523 (970) 491-6372 (970) 491-7947 fax John.Harton@ColoState.edu

Fall 2005 teaching: PH245 Introduction to Electronics

Current Research is on the Pierre Auger Cosmic Ray Observatory.

CSU Auger Group:
John Harton, (Faculty) Harton@Lamar.ColoState.edu, (970)491-6372
Pablo Bauleo, (Post-doc) Bauleo@Lamar.ColoState.edu, (970) 491-7922
Rob Knapik, (Graduate student) Knapik@Lamar.colostate.edu, (970)491-1581
Jon McBee (Graduate student) Jmcbee@lamar.colostate.edu, (970)491-1582
Dave Warner, (Technical Design) Warner@Lamar.ColoState.edu (970)491-1035
And our colleague at CU-Boulder, Jeff Brack (Research Staff), Brack@Drax.Colorado.edu (303)492-3660

CSU Auger construction activities Auger Project Homepage

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Education:

PhD in Physics, 1988, MIT

BS in Physics, 1982, University of California, Davis

Employment:

Professor of Physics, Colorado State University, 2004-present

Associate Professor of Physics, CSU, 1999-2004

Assistant Professor of Physics, CSU, 1995-1999

Post-doctoral research, University of Wisconsin, Madison, 1988-1995

PhD students graduated:

Michael Smy, 1997, “Measurement of Z⁰ Leptonic Coupling Asymmetries”, SLD Experiment at SLAC, Phys.Rev.Lett.79:804-808,1997

Jinlong Zhang, 2002, “Rare B Decays to States Containing a J/Ψ Meson”, BaBar Experiment at SLAC, Phys.Rev.Lett.91:071801,2003

Recent MS students graduated:

Leslie Garrard, 2005 (Non-thesis, Experience on Auger North LIDAR)

Rob Knapik, 2004, (Non-thesis, Experience on Auger FD Absolute Calibration)

Kevin Smith, 2003 (Non-thesis, Experience on Auger Engineering Surface Array)

Selected recent Auger publications:

PROPERTIES AND PERFORMANCE OF THE PROTOTYPE INSTRUMENT FOR THE PIERRE AUGER OBSERVATORY. By Pierre Auger Collaboration (J. Abraham et al.). FERMILAB-PUB-04-518-A-TD, 2004. 46pp.
Published in Nucl.Instrum.Meth.A523:50-95,2004.

The Auger Collaboration started to release physics results in August 2005 at the ICRC in Pune, India.

Selected Auger physics papers from ICRC ‘05:

“Search for localized excess fluxes in Auger sky maps and prescription results”
Authors: The Pierre Auger Collaboration, astro-ph/0507600

“Upper limit on the primary photon fraction from the Pierre Auger Observatory”
Authors: The Pierre Auger Collaboration astro-ph/0507590

“Anisotropy Studies Around the Galactic Center at EeV Energies with Auger Data”
Authors: The Pierre Auger Collaboration, astro-ph/0507331

“First Estimate of the Primary Cosmic Ray Energy Spectrum above 3 EeV from the Pierre Auger Observatory”, Authors: The Pierre Auger Collaboration, astro-ph/0507150

Auger Technical papers at ICRC ’05 to which the CSU group made essential contributions:

“Measurement of the Lateral Distribution Function of UHECR Air Showers with the Pierre Auger Observatory”, Authors: D. Barnhill, P. Bauleo, M.T. Dova, J. Harton, R. Knapik, J. Knapp, J. Lee, M. Mancenido, A.G. Mariazzi, I.C. Maris, D. Newton, M.Roth, T. Schmidt, AA Watson, for the Pierre Auger Collaboration,
astro-ph/0507590

“Absolute Calibration of the Auger Fluorescence Detectors”
Authors: P. Bauleo (CSU), J. Brack (CU), L. Garrard (CSU), J. Harton (CSU), R. Knapik (CSU), R. Meyhandan (LSU), A.C. Rovero (IAFE), A. Tamashiro (IAFE), D. Warner (CSU), for the Auger Collaboration, astro-ph/0507347

“Optical Relative Calibration and Stability Monitoring for the Auger Fluorescence Detector”
Authors: Pierre Auger Collaboration: C. Aramo, J. Brack, R. Caruso, D. D'Urso, D. Fazio, R. Fonte, H. Gemmeke, M. Kleifges, R. Knapik, A. Insolia, J. A. J. Matthews, A. Menshikov, W. Miller, P. Privitera, J. Rodriguez Martino, for the Auger Collaboration, astro-ph/0507577

“The trigger system of the Pierre Auger Surface Detector: operation,efficiency and stability”
D. Allard, E. Armengaud, I. Allekotte, P. Allison, J. Aublin, M. Ave, P. Bauleo, J. Beatty, T. Beau, X. Bertou, P. Billoir, C. Bonifazi, A. Chou, J. Chye, S. Dagoret-Campagne, A. Dorofeev, P.L. Ghia, M. G´omez Berisso, A. Gorgi, J.C. Hamilton, J. Harton, R. Knapik, C. Lachaud, I. Lhenry-Yvon, A. Letessier-Selvon, J. Matthews, C. Medina, R. Meyhandan, G. Navarra, D. Nitz, E.Parizot, B. Revenu, Z. Szadkowski, T. Yamamoto for the Pierre Auger Collaboration, Proceedings, ICRC 2005, Pune, India. (Link to pre-conference pdf file of paper.)

And one ICRC 05 contribution that was not connected to the Auger collaboration

“Measurement of atmospheric aerosols in southeast Colorado using backscatter LIDAR and a shadow-band solar radiometer”

John L. Harton^a, David Warner^a, Pablo M. Bauleo^a, Leslie Garrard^a, James Slusser^b, Jeff Brack^c, Robert Knapik^a

(a) Colorado State University, Department of Physics, Fort Collins, Colorado 80523 USA

(b) Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, Colorado 80523 USA

(c) University of Colorado, Department of Physics, Boulder, Colorado, 80309 USA

Proceedings, ICRC 2005, Pune, India. (Link to pre-conference pdf file of paper.)