Assistant Vice President

Eric W. Grashorn, Ph.D.

Contact Eric W. Grashorn, Ph.D. Voice: 218-***-****

Information 5164 Abel Merril Rd E-mail: ********@*******.***.***

Columbus, OH 43221 USA http://physics.ohio-state.edu/~grashorn

URL:

Skilled analyst with 10 years experience solving a broad range of longstanding problems in experimental

physics and nance through statistical analysis and modeling of large data sets. Attacks complex prob-

lems readily transferable to industry applications with the ability to e ectively communicate results.

Detail oriented analyst who e ortlessly collaborates, with demonstrated ability to lead cross-functional

teams.

Work J.P. Morgan Chase, Vice President, Statistical Modeling 2011-present

Experience Mined monthly snapshot of national home lending activity to develop marketing

intelligence

Developed title search algorithm using County Courthouse deed records

Prioritized debt collection resources using Machine Learning algorithms

Ohio State University, Post Doctoral Researcher 2008 - 2011

Antarctic Impulsive Transient Array (ANITA)

NASA funded balloon borne radio interferometer designed to detect cosmic neutrinos.

Used C++ to develop model of light transmission through rough surfaces at greater

than the critical angle.

Lead team to make rst wideband measurement of radio emission from cosmic rays.

Designed high-e ciency triggering system for broadband RF system.

Air-shower Molecular Bremsstrahlung Radiometer (AMBER)

Experiment using satellite television equipment to detect microwave emission from cosmic

rays.

Developed C++ simulation of microwave emission from nuclear cascades.

Deployed microwave re ector-feedhorn-ampli er system in the eld.

Radio Extensive Airshower Simulation (REAS)

Simulation of radio emission from electromagnetic showers induced by cosmic ray nuclei.

Extended existing simulation to cover wider geometry and frequency range.

Pierre Auger Observatory

Largest cosmic ray observatory in the world at 3,000 km2, located in Mendoza, Argentina.

Performed statistical analysis to determine the mass of incoming cosmic ray nuclei.

Measured proton-air cross section at higher energies than laboratory capabilities.

Dissertation Supervision

Provided guidance and advised PhD students on the direction of their research.

Reviewed and edited manuscripts of PhD students.

Conference Organization

Highest Energy Hadronic Interactions Workshop, Ohio State University, April 8, 2010.

Center for Cosmology and Astroparticle Physics Symposium, Ohio State University,

October 12-14, 2009

Secured grant funding to pay for attendee travel and accommodations.

Facilitated presentations and conference discussions.

University of Minnesota, Research Assistant 2004 - 2008

Main Injector Neutrino Oscillation Search (MINOS)

Eric W. Grashorn, Ph.D. Page 1

Neutrino experiment with beam and near detector at Fermilab, far detector at Soudan, MN.

Resolved problem of kaon production in cosmic ray induced nuclear cascades using

statistical correlation of particle data with atmospheric temperature variations.

Used Maximum Likelihood method to measure cosmic ray de cit to investigate

interplanetary magnetic eld.

Performed statistical analysis to discover extragalactic neutrino production.

Work University of Minnesota, Teaching Assistant 2003 - 2007

Experience Lead introductory algebra & calculus based Physics Labs.

(Cont d) Instructed recitation sessions and individualized tutoring.

The Arts Place, Guitar Instructor 2002 - 2003

Instructed beginning through advanced students, from ages 5 - 50.

Ball State University, Research Assistant 2001 - 2003

Developed method using calcium lters to perform wide- eld red dwarf star surveys.

Performed observations of red dwarf stars at Lowell Observatory, Flagsta, AZ.

Education University of Minnesota, Ph.D., Physics June 2008

Dissertation Title: Particle Astrophysics with the MINOS Far Detector

Advisers: Prof. Marvin L. Marshak, Prof. Alec T. Habig

University of Minnesota, M.S., Physics August 2005

Thesis Title: Search for a Cosmic Ray Point Source with the MINOS Far Detector

Adviser: Prof. Alec T. Habig

Ball State University, B.S., Physics June 2003

Research Project: Luminosity Classi cations of Low-Mass Red Stars

Technical Computing: C/C++, R, ROOT, Matlab, Mathematica, Perl, Fortran, Make,

Expertise Unix Scripts, SAS, SQL

Analysis: Statistical analysis of large data sets, multivariate analysis, machine learning

Hardware: Microwave RF systems

Simulations: Geant4, Corsika, REAS, NECREF

Other: Unix/Linux, Windows, L TEX, MS Excel, Word, Powerpoint

A

Batch: PBS, condor

Leadership University of Minnesota Council of Graduate Students 2007 - 2008

Experience Vice President for Internal Relations

Wrote o cial publications.

Organized Graduate School orientation.

University of Minnesota Physics Grad Student Organization 2006 - 2008

O cer

Organized mentoring program, social events.

Awards, R.D. and H.T. Miller Scholarship Ball State University 2002

Affiliations American Physical Society; Divisions of Particles and Fields, Astrophysics

Publications & Published 26 articles in leading peer-reviewed journals, demonstrated ability to choose

Presentations problems of wide interest and ability to carry those projects to completion, contributing

to a variety of elds. Represented collaborators at numerous international conferences,

Eric W. Grashorn, Ph.D. Page 2

invited to discuss work at leading research institutions around the world. Partial pub-

lication/presentation list attached, full list available upon request.

Eric W. Grashorn, Ph.D. Page 3

Refereed Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and

Publications moon, Adamson, P. et al., The MINOS Collaboration, Astropart. Phys 34, 457-466.

(2011)

Observation of ultra-high-energy cosmic rays with the ANITA balloon-borne radio

interferometer, Hoover, S. et al., The ANITA Collaboration, Phys. Rev. Lett. 105,

151101. (2010)

Observation of muon intensity variations by season with the MINOS Far Detector,

Adamson, P. et al., The MINOS Collaboration, Phys. Rev. D 81 012001. (2010)

The atmospheric charged kaon/pion ratio using seasonal variation methods, Grashorn,

E. W. et al., Astropart. Phys. 33 140-145. (2010)

Sudden stratospheric warmings seen in MINOS deep underground muon data, Os-

prey, S. et al, The MINOS Collaboration, Geophys. Res. Lett. 36 L05809. (2009)

Public Atmospheric Physics Underground: MINOS and Beyond, Invited Seminar, Labora-

Presentations tori Nazionali del Gran Sasso, Italy, October 12, 2010

ANITA and the Highest Energy Cosmic Rays, XXIV International Conference on

Neutrino Physics and Astrophysics (Neutrino 2010), Athens, Greece, June 14-19, 2010

An Overview of the ANITA Experiment, AAS High Energy Astrophysics Division,

Kona, HI, USA, USA, March 1-4, 2010

The Nature of Horizontally Polarized Events in ANITA 1: MC Simulations, APS

April Meeting, Washington, DC, USA, February 13-16, 2010

Astroparticle Physics with the MINOS Far Detector, 31st International Cosmic Ray

Conference (ICRC 2009), Lodz, Poland, July 7-15, 2009

An Overview of the ANITA Experiment, 44th Recontres de Moriond, La Thuile,

Italy, February 1-8, 2009

Cosmic Rays at MINOS: Physics in the Background, High Energy Seminar, Univer-

sity of Notre Dame, Notre Dame, IN, USA, February 26, 2008

Eric W. Grashorn, Ph.D. Page 4

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