1996 – present: Participated in 24 Hall C experiments at Jefferson Lab:

E89008 – Inclusive Scattering for Nuclei at x>1 and High Q2;

E89012 – Two-Body Photodisintegration of the Deuteron at Forward Angles and Photon Energies between 1.5 and 4.0 GeV;

E91003 – A Study of Longitudinal Charged Pion Electroproduction in 2-D, 3-He and 4-He;

E91013 – The Energy Dependence of Nucleon Propagation in Nuclei as Measured in the (e,e'p) Reaction;

E91016 – Electroproduction of Kaons and Light Hypernuclei;

E93018 - Longitudinal/Transverse Cross Section Separation in p(e,e'K+)L,S for 0.5<Q2<2.0 (GeV/c)2, W>1.7GeV, and tmin> 0.1 (GeV/c)2;

E93021 – The Charged Pion Form Factor;

E94014 – The Delta(1232) Form Factor at High Momentum Transfer;

E94110 – Measurement of R=sL/sT in the Resonance Region;

E94-139 – Measurement of the Nuclear Dependence and Momentum Transfer Dependence of the Quasielastic (e,e'p) Scattering at Large Momentum Transfer,

E96-003 – Two-Body Photodisintegration of the Deuteron at High Energy

E99-118 – Measurement of the Nuclear Dependence of R=sL/sT at Low Q2

E93-026 – The Charge Form Factor of the Neutron.

E-01-006 – Precision Measurement of the Nucleon Spin Structure Functions in the Region of the Nucleon Resonances;

E-00-002 – F2N at Low Q2

E-01-002 – Baryon Resonance Electroproduction at High Momentum Transfer

E-00-116 – Duality at Intermediate Q2

E01-104 – The Charged Pion Form Factor

E00-108 – Duality in Meson Electroproduction

E02-109 and E04-001 – Measurements of L-T Separated Structure Functions on Deuterium and Nuclei in the Resonance Region.

E05-017 – A measurement of two-photon exchange in unpolarized elastic electron-proton scattering.              
E06-009 – Measurement of R=σLT on Deuterium in the nucleon resonance region and beyond.
E04-001 – Measurement of F2 and R=σLT on nuclear targets in the nucleon resonance region and beyond      

1999 – present: Participated in 65 Hall B experiments at Jefferson Lab:

E-89-004 – Electromagnetic Production of Hyperons

E-89-015 – Study of Coincidence Reactions in the Dip and Delta-Resonance Regions

E-89-017 – Electroexcitation of the D(1232) in Nuclei

E-89-024 – Radiative Decays of the Low-Lying Hyperons

E-89-027 – Coincidence Reaction Studies with the CLAS Detector

E-89-031 – Study of Multi-Nucleon Knockout with the CEBAF Large Acceptance Spectrometer

E-89-032 – Study of the Local Properties of Nuclear Matter in Electron-Nucleus and Photon-Nucleus Interactions with Backward Particle Production Using the CLAS Detector 

E-89-036 – Study of Short-Range Properties of Nuclear Matter in Electron-Nucleus and Photon-Nucleus Interactions with Backward Particle Production using the CLAS Detector

E-89-037 – Electroproduction of the P33(1232) Resonance

E-89-038 – Measurements of p(e,e' π+)n, p(e,e'p0, and n(e,e'π-)p in the Second Resonance Region

E-89-039 – Amplitudes for the S11(1535) and P11(1710) Resonances from an ep=>e'pn experiment

E-89-042 – Measurement of the Electron Asymmetry in p(e,e'p0 and p(e,e'π+) in the Mass Region of the P33 (1232)

E-89-043 – Measurements of the Electroproduction of the γ (gnd), γ*(1520) and fo(975) via the K+ K-p and K+ π- p Final States

E-89-045 – Study of Kaon Photoproduction on Deuterium

E-91-002 – The study of Excited Baryons at High Momentum Transfer with the CLAS Spectrometer

E-91-008 – Photoproduction of h and h' Mesons

E-91-014 – Quasi-Free Strangeness Production in Nuclei

E-91-023 – Measurement of Polarized Structure Functions in Inelastic Electron Proton Scattering using the CEBAF Large Acceptance Spectrometer

E-91-024 – Search for "Missing" Resonances in the Electroproduction of Omega Mesons

E-93-006 – Two Pion Decay of Electroproduced Baryon Resonances

E-93-008 – Inclusive h Photoproduction in Nuclei

E-93-009 – The Polarized Structure Function G1n and the Q2 Dependence of the Gerasimov-Drell-Hearn Sum Rule for the Neutron

E-93-012 – Electroproduction of Light Quark Mesons

E-93-017 – Study of γd -> pn and γd -> pΔ0 Reactions for Small Momentum Transfers

E-93-022 – Measurement of the Polarization of the φ(1020) in Electroproduction

E-93-030 – Measurement of the Structure Functions for Kaon Electroproduction

E-93-031 and E-01-112 – Photoproduction of Vector Mesons at High t

E-93-033 – A Search for Missing Baryons Formed in gp -> pp+p- Using the CLAS at CEBAF

E-93-036 – Measurement of Single Pion Electroproduction from the Proton with Polarized Beam and Polarized Target Using CLAS

E-93-044 – Photoreactions on 3He

E-94-003 – Study of the Δ(1232) Using Double Polarization Asymmetries

E-94-005 – Determination of the ND Axial Vector Tansition Form Factor GA from the ep -> e'Δ++π-

E-94-008 – Photoproduction of h and h' Mesons from Deuterium

E-94-015 – Study of the Axial Anomaly using the rpp+-->p+p0 Reaction near Threshold

E-94-016 – A Measurement of Rare Radiative Decays of the f Meson

E-94-017 – The Neutron Magnetic Form Factor from Precision Measurements of the Ratio of Quasielastic Electron-Neutron to Electron-Proton Scattering in Deuterium

E-94-019 – Measuring Nuclear Transparency in Double Rescattering Processes

E-94-102 – Electron Scattering from a High Momentum Nucleon in Deuterium

E-94-103 – The Photoproduction of Pions

E-94-109 – Photoproduction of the Rho Meson from the Proton with Linearly Polarized Photons

E-95-003 – Measurement of Kzero Electroproduction

E-97-001 – Electroproduction of the ppπ- System off the Deuteron beyond the Quasifree Region

E-98-104 – Measurement of the polarized electron beam asymmetry on exclusive reactions in nuclei with CLAS

E-98-109 – Photoproduction of phi Mesons with Linearly Polarized Photons

E-99-005 – Meson Spectroscopy in Few-Body Decays

E-99-006 – Polarization observables in the 1H (e,e'K+)Λ Reaction

E-99-013 – Photoproduction of omega mesons off protons with linearly polarized photons

E-99-105 – Deeply Virtual Electroproduction of Vector Mesons

E-99-107 – N* Excitations at High Q2 in the p pi, p , and n pi+ Channels

E-99-108 – N* Excitations at High Q2 in the Two-Pion Channel

E-00-112 – Exclusive Kaon Electroproduction in Hall B at 6 GeV

E-01-017 – Extension to E99-005: Meson Spectroscopy in Few-Body Decays

E-02-104 – Quark Propagation through Cold QCD Matter

E-02-110 – Q² Dependence of Nuclear Transparency for Incoherent π 0 Electroproduction

E-02-112 – Search for Missing Nucleon Resonances in the Photoproduction of Hyperons Using a Polarized Photon Beam and A Polarized Target

E-03-006 – The GDH Sum Rule with nearly real photons and the proton g1 structure function at low momentum transfer

E-03-012 – The Structure of the Free Neutron via Spectator Tagging

 E-03-105 – Pion Photoproduction from a Polarized Target

E-03-113 – Investigation of Exotic Baryons States in Photoproduction Reactions with CLAS

E-04-005 – Search for New Forms of Hadronic Matter in Photoproduction

E-04-010 – Search for Exotic Cascades with CLAS Using an Untagged Virtual Photon Beam

E-04-017 – Study of Pentaquark States in Photoproduction off Protons

E-04-021 – Spectroscopy of Exotic Baryons with CLAS:Search for Ground and Excited States

E-04-116 – Beyond the Born Approximation: A Precise Comparison of Positron-Proton and Electron-Proton Elastic Scattering in CLAS

E-06-003 – Deeply Virtual Compton Scattering with CLAS at 6 GeV

1999 – present: In collaboration with Drs. R. Ent, C. Keppel, S. Liuti, and J. Arrington quark – hadron duality on nucleon and nuclei is being investigated. One paper was published in Phys. Rev. D in 2001 (Moments of the Proton Structure Function at Low Q2), one published in 2002 (Perturbative QCD Analysis of Local Duality in a Fixed W2 Framework), and two published in Phys Rev C in 2006 (Moments of nuclear and nucleon structure functions at low Q2 and the momentum sum rule and Low Q scaling, duality, and the EMC effect).

January 2004 – present: Member of the Minerva Collaboration. For more info see: D. A. Harris et

al Neutrino Scattering Uncertainties and Their Role in Long Baseline Oscillation Experiments. ePrint Archive: hep-ex/0410005 and D. Drakoulakos et al Proposal to Perform a High-Statistics Neutrino Scattering Experiment Using a Fine-Grained Detector in the NUMI Beam. FERMILAB-PROPOSAL-0938, Feb 2004. e-Print Archive: hep-ex/0405002

2003 – present: Member in the Hall B BoNuS Collaboration. The JMU group is involved in the development of the BoNuS detector that will be installed in Hall B at Jefferson Lab. This detector will facilitate the study of the neutron structure. More info can be found at http://www.jlab.org/%7Ekuhn/BoNuS_Welcome.html.

August 2001 – August 2002: Postdoctoral associate in Hall C at Jefferson Lab.

Work on the design and prototyping of a beam halo monitor for Hall C at Jefferson Lab.

1999 – August 2001: Postdoctoral associate at George Washington University.

Analysis of Hall B (Jefferson Lab) real photon scattering data, in particular the gd ®KY, YºL or S, reaction (experiment E89-045). These data are used to study the kaon photoproduction on neutron and the effects of the nuclear medium on kaon photoproduction on the nucleon. Preliminary results were presented at the INPC2001 conference and were published in the proceedings.

In collaboration with Dr. C.Armstrong from Jefferson Lab the proposal for an experiment to measure the nucleon structure function F2 at low momentum transfer Q2 was developed. The PAC at Jefferson Lab approved this experiment in January 2000 with A- rating. These data will be used to extend the quark – hadron duality studies to low Q2. This experiment took data in spring 2003.

1996 – 1999—Graduate student at Hampton University

Analysis of Jefferson Lab inclusive resonance electroproduction data for doctoral thesis. The data span the missing mass range 1<W2<4 GeV2 and momentum transfer range 0.5<Q2<4.0 (GeV/c)2 for both hydrogen and deuterium targets. Cross sections obtained in this region are being used to investigate Bloom-Gilman duality. This work was published in Phys. Rev. Letters (2 papers). In collaboration with Dr. S.Liuti from the University of Virginia, global inclusive data were used to extract QCD moments and higher twist effects. This work was published in Phy. Rev. D.


Participated in experiment IUCF E387 – “Measurements of the Differential Cross Sections and Polarization Transfer Observables in the 2-H( p,n) reaction” at Indiana University Cyclotron Facility (IUCF).

Summer 1994 – 1995

IUCF experiment E377 – Calibration of the Neutron Polarimeter to Be Used in Experiments to Measure the Electric Form Factor of the Neutron at Bates and CEBAF. Participated in the calibration run and was responsible for the analysis of three of the four measured kinematics. These results were published in IEEE Transaction on Nuclear Science.

Summer 1992 – Fall 1993: General Instrumentation Studies as follows:

Participated in testing photomultipliers for the lead glass shower counter for the HMS spectrometer in Hall C at the Continuous Electron Beam Facility (CEBAF).

In 1993 at the NuHEP Center at Hampton University, tested straw tube drift chamber. The tests included studies of the time response of the detector, and measurements of the drift velocity in an argon-ethane gas mixture at atmospheric pressure and room temperature. Additionally, timing response studies were done of a gas microstrip chamber using ultraviolet-light-ionized photoelectrons.

Summer 1990 and Spring 1991

Thesis work at the Joint Institute for Nuclear Research, (JINR) Dubna, Russia. The subject of this research was ionization detectors for high energy physics. The results were used in designing the muon detectors for the MARS experiment at the UNK-Protvino accelerator.


Involved in studies of BGO scintillation detectors at Bucharest University, in collaboration with the Institute for Physics and Technology of Materials, Bucharest, Romania. Spectrometric tests were performed (studies of the linear dependence of the pulse amplitude with photon energy, energy resolution and full energy peak efficiency of the detector). The experimental results were compared with results from a Monte Carlo simulation.