Conferences and Workshops



				Conferences and Workshops

Workshop on the Low-Energy Electroweak
Sea-quark Structure of the Nucleon

The parity-violating electron scattering (PVES) experiments at Jefferson Laboratory, in tandem with the SAMPLE experiment at MIT-Bates and the MAMI parity-violation experiment experiment at Mainz, seek to uncover the contribution made by the strange quarks to the vector current form factors of the nucleon. Whilst theorists have developed a variety of models to predict the strange-quark form factors, no theoretical concensus has yet emerged.

Recently, progress at developing relatively model-independent predictions has been made using two different approaches: lattice QCD, and dispersion relations. The first goal of this workshop is to bring together experts from both fields, to see how each approach may yield insight into the other. A second goal is to generate the development of new collaborations and new directions of research regarding strange quarks.

Time and Venue

The workshop will take place at the University of Connecticut, Storrs Campus, from 11th - 13th. November, 1999 commencing at 9am on the Thursday and concluding at mid-day on the Saturday.

Accommodation

The recommended lodging is the

Best Western Regent Inn,

123 Storrs Road (Hwy 195)

Mansfield Center

CT 06250

Tel.: +1 (860) 423 8451

Participants should contact the hotel directly to arrange a room, and ask for the University of Connecticut rate of $59.50 + Tax per night for a twin room. A block of 15 rooms has been allocated for the period of the workshops; any rooms not reserved one week prior to the start will be released.

Support

The University of Connecticut and Jefferson Laboratory will be able to provide support for four nights accommodation at the above rate, and for three days per diem.

Travel Arrangements

Non-local attendees will find it most convenient to fly to Hartford, CT, and then rent a car to take them to Storrs. Whilst we may be able to provide some transport to Storrs, we would encourage you to coordinate your travel so as to share a car if at all possible.

Directions to UConn can be found at the UConn Physics web site www.phys.uconn.edu. Note that the hotel is on the same road (Hwy 195) as the University of Connecticut. Please send your travel information, i.e. flight numbers, arrival and departure dates and times, and the numer of nights you have arranged accommodation to Shi-Lin Zhu (zhusl@mithras.phys.uconn.edu) who can also FAX campus maps and other information as necessary.

Tentative Program

THURSDAY, NOV. 11

9:00-9:15	Welcome	M. Ramsey-Musolf /W. Stwalley (UConn. Head)
9:15-10:15	Experimental Overview	K. Kumar (SLAC/UMass)
10:15-10:45	Break
10:45-11:45	Theory Overview - Hadronic Frameworks and Dispersion Relations	M. Ramsey-Musolf (UConn/JLAB)
11:45-12:30	Discussion
12:30-2:00	Lunch at Nutmeg Grille
2:00-3:00	Theory Overview - Strange Quarks on the Lattice	K.F. Liu (Kentucky)
3:00-3:30	Discussion
3:30-4:00	Break
4:00-5:00	Light-Quark Physics on the Lattice	R. Edwards (JLAB)
5:00-5:30	Discussion
6:00	Dinner

FRIDAY, NOV. 12

9:00-9:45	Dispersion Relations: Higher Mass States and Technical Issues	H.-W. Hammer (Ohio State)
9:45-10:15	Discussion
10:15-10:45	Break
10:45-11:30	Modelling the Spectral Function	S. Krewald (Juelich)
11:30-12:00	Discussion
12:00-2:00	Lunch at Nutmeg Grille
2:00-2:45	Baryon Moments in CHPT	S. Puglia (UConn)
2:45-3:15	Discussion
3:15-3:45	Break
3:45-4:30	Applications of Chiral Pert. Theory to Lattice QCD	M. Golterman (Wash. Univ.)
4:30-5:30	Discussion and Informal Interactions
6:00	Dinner

SATURDAY, NOV. 13

9:00-9:45	Flavour-Singlet Calculations in Lattice QCD.	T. Struckmann (Wuppertal)
9:45-10:15	Discussion
10:15-11:15	Break and Informal Discussions
11:15-11:45	Workshop Summary	J. Negele (MIT)
11:45-12:00	Workshop Close