J. ArringtonJohn Arrington


Research interests

Nucleon structure: Involved in a series of measurements of nucleon structure via elastic and inelastic electron scattering to measure the nucleon structure functions and study quark-hadron duality. Performed detailed analysis of the discrepancy between Rosenbluth and Polarization transfer measurements of the proton form factor, as well as the effects of higher-order radiative corrections (two-photon exchange and Coulomb distortion). Performed "Super-Rosenbluth" measurement to more precisely understand the discrepancy. Have follow-up measurements approved at Jefferson Lab and Novosibirsk to study the effect of two-photon exchange corrections to the form factors. Examining impact of two-photon exchange in the extraction of the proton charge radius and involved in measurements to test the 'proton radius puzzle'.

Nuclear structure functions: Measured high-x scattering from nuclei, aimed at isolating the short-range structure of the nucleus and understanding modification to nucleon structure within the nuclear medium. Performed duality studies with high-precision nucleon and nuclear structure function measurements. Recently completed experiments to study Short-Range correlations and to measure the EMC effect at large x, focusin on light nuclei. In both cases, the anomolous behavior of Be-9 suggests the importance of the alpha-like cluster structure, which appears to have a significant impact, even in high-energy5D scattering

Color Transparency: Involved in SLAC and JLab studies of color transparency in A(e,e'p) reactions, the recent JLab Hall B measurement of color transparency in rho electroproduction, and JLab Hall C measurement of transparency in pion electroproduction.

The majority of my work is performed in Hall C and Hall A at Jefferson lab, though I am (or have been) involved in Hall B experiments as well as experiments at MIT-Bates, SLAC, HERMES at DESY, Fermilab, and Novosibirsk.

Biographical sketch

Awards

Professional Activities

Selected Publications (Full list from INSPIRE)

Approved Experiments

E01-001: "New Measurement of (G_E/G_M) for the Proton"
R. E. Segel and J. Arrington, spokespersons. Approved for 10 days in Hall A with an A- scientific rating.
view HTML version or download postscript version of E01-001 proposal.
Experiment ran May 2002. Published results on G_E/G_M

E02-019: "Inclusive Scattering from Nuclei at x>1 and High Q^2 with a 6 GeV Beam"
J. Arrington, D. B. Day, B. W. Filippone, and A. F. Lung, spokespersons. Approved for 28 days in Hall C with an A- scientific rating
view HTML version or download postscript version of the E02-019 proposal.
Experiment ran June-November 2004. Published results on High-x structure functions (PRL) and Short-range correlations (PRL)

E03-103 (was E00-101): "A Precise Measurement of the Nuclear Dependence of Structure Functions in Light Nuclei"
J. Arrington, spokesperson. Approved for 10 days in Hall C with a B+ scientific rating.
view HTML version or download postscript version of original E00-101 proposal.
Download postscript version of jeopardy resubmission (E03-103).
Experiment ran June-November 2004. Results published in Physical Review Letters
Web page with figures and data tables: hallcweb.jlab.org/experiments/E03103

VEPP-3 Proposal: "Two-photon exchange and elastic scattering of electrons/positrons on the proton"
J. Arrington and D. Nikolenko, spokespersons; Proposal for measurement at the VEPP-3 ring in Novosibirsk (2004).
download postscript or pdf version of the proposal.
Engineering run, May-July 2007.

E04-116: "Beyond the Born approximation: A precise comparison of positron-proton and electron-proton elastic scattering in CLAS"
W. Brooks, J. Arrington, K. Joo, B. Raue, A. Afanasev, L. Weinstein, spokespersons.  Approved for 5 days in Hall B with an A- scientific rating.
download postscript or pdf version of the proposal.
Successful engineering run in Oct 2006 led to full proposal (E07-005)

E05-017: "A Measurement of two-photon effects in upolarized electron-proton scattering"
J. Arrington, spokesperson.  Approved for 13 days in Hall C with an A- scientific rating.
download postscript or pdf version of the proposal (or the older PAC 26 versions: postscript or pdf).
Experiment ran May-July 2007

E12-06-105: "Inclusive Scattering from Nuclei at x>1 in the quasielastic and deeply inelastic regimes"
J. Arrington, D. B. Day, spokespersons.   Approved by PAC30.
download postscript or pdf version of the proposal.

E07-005: "Beyond the Born approximation: A precise comparison of positron-proton and electron-proton elastic scattering in CLAS"
W. Brooks, J. Arrington, K. Joo, B. Raue, A. Afanasev, L. Weinstein, spokespersons.  Approved by PAC31 with an A scientific rating.
download pdf version of the proposal.

E12-07-107: "Precision Measurement of the Proton Elastic Cross Section at High Q^2"
B. Moffit, J. Arrington, S. Gilad, and B. Wojtsekhowski, spokespersons.   Approved by PAC32.
download postscript or pdf version of the proposal.

E08-007: "Measurement of the Proton Elastic Form Factor Ratio at Low Q^2"
G. Ron, J. Arrington, R. Gilman, A. Sarty, D. W. Higinbotham, D. Day, spokespersons.  Approved by PAC33 with an A- scientific rating.
download pdf version of the proposal.
Phase-I (recoil polarimeter) ran in Summer 2008. Results published in Physics Letters B
Phase-II (polarized target) ran in Spring 2012

E08-014: "Three-nucleon short range correlation studies in inclusive scattering for 0.8 < Q^2 < 2.8 GeV^2"
J. Arrington, D. B. Day, D. Higinbotham, and P. Solvignon, spokespersons.  Approved by PAC33 with an A- scientific rating.
download pdf version of the proposal. Ran in May 2011.

E12-10-008: "Detailed studies of the nuclear dependence of F_2 in light nuclei."
J. Arrington, A. Daniel, and D. Gaskell, spokespersons.  Approved by PAC36.
download pdf version of the proposal.

E12-11-009: "The Neutron Electric Form Factor at Q^2 up to 7 (GeV/c)^2 from the Reaction 2H(\vec{e},e'\vec{n})1H via Recoil Polarimetry"
A. Semenov, B. Anderson, J. Arrington, S. Kowalski, R. Madey, and B. Plaster spokespersons.  Approved by PAC37.
download pdf version of the proposal.

E12-11-112: "Precision measurement of the isospin dependence in the 2N and 3N short range correlation region"
J. Arrington, D. B. Day, D. Higinbotham, and P. Solvignon, spokespersons.  Approved by PAC38 with A- scientific rating.
download pdf version of the proposal.

PhD Students and Theses

  • Zhihong Ye: University of Virginia, 2013
    JLab E08-014: Short Range Correlations in Nuclei at Large x_{bj} through Inclusive Quasi-Elastic Electron Scattering

  • Hall C Software

  • The "OSCAR" document (how to run the Hall C Analysis Engine) - OSCAR_jan99.html
  • SIMC (the Hall C Monte Carlo) primer - View HTML (OLD VERSION!!)  Download PostScript (NEW VERSION!!)
  • Archive of SIMC releases - SIMC Sources
  • Additional SIMC documentaion - SIMC Stuff
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