Introduction:

Large samples of hyperon decays are becoming available from a new generation of very high rate experiments at Fermilab, CERN, and other laboratories throughout the world. With the advent of the Main Injector at Fermilab, and other planned facilities, even larger samples will become available in the near future. It is therefore an appropriate time to review the status of hyperon physics and to examine possibilities for future experiments. Advances in theoretical physics are also providing a basis for renewed interest in this subject. Given these developements one can ask what important questions in physics can and should be addressed with large samples of hyperon decays?

Several unanswered questions in physics can be addressed through studies of hyperons: CP violation, QCD effects in electro-weak decays, precision tests of the standard model and searches for physics beyond the standard model. All of these studies require precise measurement of the type that can only be carried out with very high statistics data samples which are now becoming available. Other outstanding problems such as the source of hyperon polarization remain to be understood. To review recent progress in hyperon physics and to discuss the course further studies might take, we propose holding a short symposium (three days) that will bring together theorists and experimentalists who have worked on or are currently working on these subjects.

This symposium will only contain plenary sessions. There will be a few general introduction and conclusion talks such as:

• Review of experiments and results on hyperon physics
• Review of hyperon decays theories
• Prospects for experiments within the next several years
• Highlight and summary of the workshop

A series of more specific talks will review the current theoretical and experimental status of the following topics (non exhaustive list):

• CP violation in hyperon decays
• QCD effects in  hyperon electro-weak decays
• Precision tests of the standard model through studies of hyperon decays
• Searches for physics beyond the standard model in hyperon decays
• Production polarization of hyperons and anti-hyperons
• Hyperon Form factor studies
• Weak-radiative hyperon decays
• Hyperon production phenomena
• Hyperon static properties, masses, magnetic moments, lifetimes, electromagnetic radii, alpha parameters, etc...
• Hyperon total cross sections
• Excited Hyperon properties

• Are there any aspects of hyperon physics not receiving appropriate levels of attention ?
• What improvement on existing experiments would be appropriate ?
• What new experiments might be appropriate in hyperon physics ?
• What can we learn from hyperons in nuclear physics (hyper nuclear physics, heavy ion physics, ...) ?
• What can we learn from heavy flavor baryon studies ?
• Hyperon in astrophysics studies ?

An important goal of the symposium is to illuminate the role that hyperons will play in the future of High Energy Physics.

Local Organizing Committee:

Registration Form

Program

Transparencies (Mostly in black and white and will be converted later to color)

List of participants

Information for Hyperon99 Speakers/Authors

Hotel information (In case of problem to get the Fermilab hotel rate, please contact the Fermilab Travel Office at (630) 840 3397.)

Driving directions to Fermilab.

Rental car information.

Check out the B Physics at the Tevatron workshop held the week before Hyperon99.

Contact Address:

       Web site: http://www.fnal.gov/conferences/hyperon99/hyperon99.html

       E-Mail  : hyperon99@fnal.gov

       Marilyn Smith
       M.S. 105
       Fermi National Accelerator Laboratory
       P.O. Box 500
       Batavia, IL 60510
       Tel: 630-840-3234
       Fax: 630-840-2900