J. Wallace Van Orden

Professor of Physics 

Offices:

ODU: Oceanography and Physics Building, Room 321 (757-683-5801) 
Jefferson Lab: CEBAF Center A222 (757-269-7631)

Research Locations:

• Nuclear Physics Group at Old Dominion University
• Thomas Jefferson National Accelerator Facility

Research Sponsor: Department of Energy

   vanorden@jlab.org 

DNP 2007

Session Assignments

Current Research:

• relativistic models for elastic and quasielastic scattering from light nuclei
• covariant model for nucleon-nucleon scattering and its application to elastic and quasielastic electron-deuteron scattering
• relativistic three-body systems
• origins of duality in electron-hadron scattering

Recent Presentations:

1. "Introduction to Mathcad for Physicists",  Colloquium, Old Dominion University, January 10,2006.
2. "Deuteron Calculations with the Gross Equation", International Workshop on Relativistic dynamics and few-hadron systems, ECT*, Trento, Italy, November 17, 2000.
3.  "Electron Scattering from Nuclei,"  J. W. Van Orden, International Meeting on Electron Scattering from Atoms, Nuclei, Molecules and Bulk Matter, Magdalene College, Cambridge, U.K., 18 December 2001.
4. "Energy-weighted Sum Rules, y-scaling and Duality," J. W. Van Orden, Electron-Nucleus Scattering VII, Elba International Physics Center, Marciana Marina, Elba, Italy, 24-28 June 2002.
5. "A Simple Confining Model of Scaling and Duality", J. W. Van Orden, Theory Group seminar, Jefferson Lab, September 8, 2003.

Recent Publications:

1. "Scaling of Dirac Fermions and the WKB approximation", J. W. Van Orden, Sabine Jeschonnek, and John Tjon, Phys. Rev. D  72, 054020 (2005).

2. "Modeling quark-hadron duality in polarization observables," S. Jeschonnek and J. W. Van Orden, Phys. Rev. D 71, 054019 (2005).

3. "A comprehensive treatment of electromagnetic interactionsand the three-body spectator equations," J. Adam, Jr. and J. W. Van Orden, Phys. Rev. C  71, 034003 (2005).

4. "Modeling quark-hadron duality for relativistic, confined fermions", J. W. Van Orden and S. Jeschonnek, Phys. Rev. D 69
   054006 (2004)

5. "Energy-weighted sum rules, y-scaling and duality," J. W. Van Orden and S. Jeschonnek, Eur. Phys. J. A17, 391 (2003).

6. "Covariant description of inelastic electron-deuteron scattering: predictions of the relativistic impulse approximation," J. Adam, Jr., Franz Gross, Sabine Jeschonnek, Paul Ulmer and J. W. Van Orden, Jefferson Lab preprint JLAB-THY-02-14, nucl-th 0204068, Phys. Rev. C66. 044003 (2002).

7. "Quark-hadron duality in a relativistic confining model," S. Jeschonnek, J. W. Van Orden, Jefferson Lab preprint JLAB-THY-02-01, hep-ph 0201113 , Phys. Rev. D 65, 094038 (2002).

8. "The deuteron structure and form factors," M. Garcon and J.W. Van Orden, Adv. Nucl. Phys. {\bf 26} 293 (2001).

9. "Quark-hadron duality in structure functions", Nathan Isgur, Sabine Jeschonnek, W Melnitchouk, and J. W. Van Orden, Phys. Rev. D64, 054004 (2001).

10. "Origin of relativistic effects in the reaction D(e,e'p)n at GeV energies", S. Jeschonnek, J. W. Van Orden, Phys. Rev. C62, 044613 (2000).

11. "Electromagnetic interactions for the two-body spectator equations," J. Adam, J. W. Van Orden and F. Gross, Nucl. Phys. A640, 391 (1998) .

12. "Lagrangian with off-shell vertices and field redefinitions," J. Adam, Jr., F. Gross and J. W. Van Orden,  Few Body Syst. 25, 73 (1998).

13. "Normalization of the covariant three-body bound state vertex function," J.Adam, Jr., Franz Gross, Cetin Savkli and J. W. Van Orden, Phys. Rev. C 56, 641 (1997).

14. "Strange vector currents and the OZI-rule," Ulf-G. Meissner, V. Mull, J. Speth and J. W. Van Orden, Phys. Lett B 408, 381 (1997).

15. "Elastic electron scattering from the deuteron using the Gross equation,"  J. W. Van Orden, N. Devine and F. Gross,  Phys. Rev. Lett. 75, 4369 (1995).

16. "Heavy mesons in a relativistic model,"  J. Zeng, J. W. Van Orden and W. Roberts, Phys. Rev. D52, 5229 (1995).