U.S. QCD All-to-all Propagators for Lattice Hadron Spectroscopy

Proposals

2006

A class B request for 346,000 processor-hours on a single-processor cluster in order to study, optimize and generate approximate all-to-all quark propagators based on the eigenvectors + dilution ("hybrid") method. These quark propagators will then be used to calculate the low-lying baryon excitation spectrum from a large variational basis of operators proposed by LHPC from studies in quenched lattice QCD.

Full text: proposal_2005.pdf.

People

Jozef J. Dudek (Jefferson Lab)

Robert G. Edwards (Jefferson Lab)

George T. Fleming (Yale U.)

Keisuke Jimmy Juge (Carnegie Mellon U.)

Adam Lichtl (Brookhaven Natl. Lab)

Nilmani Mathur (Jefferson Lab)

Colin Morningstar (Carnegie Mellon U.)

David G. Richards (Jefferson Lab)

Ikuro Sato (LBL, Berkeley)

Balint Joo (Jefferson Lab)

Stephen J. Wallace (Maryland U.)

Publications

Refereed publications

1. Practical all-to-all propagators for lattice QCD, J. Foley et al., Comput. Phys. Commun. 172, 145 (2005) arXiv: hep-lat/0505023.
2. Group-theoretical construction of extended baryon operators in lattice QCD, S. Basak et al., Phys. Rev. D 72, 094506 (2005) arXiv: hep-lat/0506029.

Other publications

1. Baryon operators and baryon spectroscopy, D. G. Richards et al. [LHP Collaboration], arXiv: hep-lat/0601034, to appear in the proceedings of Workshop on Computational Hadron Physics, Cyprus, September 14-17, 2005.
2. Towards a determination of the spectrum of QCD using a space-time lattice, C. Morningstar et al. [LHP Collaboration], arXiv: hep-lat/0601029, to appear in the proceedings of International Workshop on the Physics of Excited Baryons (NSTAR 2005), The Florida State University, Tallahassee, Florida, October 12-15, 2005.
3. Combining quark and link smearing to improve extended baryon operators, A. Lichtl et al. [LHP Collaboration], PoS(LAT2005)076, arXiv: hep-lat/0509179, The XXIII International Symposium on Lattice Field Theory (Lattice2005), Trinity College, Dublin, Ireland, July 25-30, 2005.
4. Exploring the spectrum of QCD using a space-time lattice, C. Morningstar, arXiv: hep-lat/0509076, to appear in the Proceedings of International Conference on QCD and Hadronic Physics, Beijing University, Beijing, China, June 16-20, 2005.