**Richard Haymaker**
*Professor of Physics*

Ph.D., 1967, University of California, Berkeley

**e-mail:** *haymaker@rouge.phys.lsu.edu*

**Mail:**

Department of Physics and Astronomy

202 Nicholson Hall

Louisiana State University

Baton Rouge, LA 70803-4001

**Office:**230-A Nicholson Hall
**Phone:**(504) 388-8471
**FAX:**(504) 388-5855

Present Research Interests

Our research is in theoretical high energy physics. Our interests lean
toward dynamical questions such as the structure and interactions of strongly
interacting particles, symmetry breaking and phase transitions in gauge
theories. One topic of interest is dynamical chiral symmetry breaking.
That is to understand the essential physics governing the way QCD realizes
broken chiral symmetry. Although lattice gauge theory simulations demonstrate
conclusively that this symmetry is broken by the vacuum, it is the continuum
Schwinger-Dyson equations which suggest a simple underlying principle that
is responsible. We would like to find appropriate operators in lattice
gauge theory to investigate the underlying mechanism. A second major topic
is confinement in non-Abelian gauge theories. We have mapped out the flux
distributions surrounding a quark antiquark pair using lattice simulations.
We determined the profile of the energy and action distributions. We were
the first to see a dual Abrikosov vortex between a quark and an antiquark
on the lattice. We calculated the curl of the monopole current and the
electric field, and determined the dual Ginzburg-Landau coherence length
and the dual London penetration depth in SU (2) gauge theory. We found
that the dual superconductor is on the borderline between type I and type
II.

Selected Publications

Richard W. Haymaker, Vandana Singh, Yingcai Peng and Jacek Wosiek, "Distribution of the color fields around static quarks: Flux tube profiles," Phys. Rev. D 53:389-403 (1996).

V. Singh, D.A. Browne, and R.W. Haymaker, "Structure of Abrikosov vortices in SU (2) lattice gauge theory," Phys. Lett. B 306:115-19 (1993).

Vandana Singh, Dana A. Browne, and Richard W. Haymaker, "London relation and fluxoid quantization for monopole currents in U(1) lattice gauge theory," Phys. Rev. D 47:1715-18 (1993).

Richard W. Haymaker, "Variational Methods for Composite Operators," Reviste Del Nuovo Cimento 8, 1(1991).