May 10, 1996
                                                        Linda Stutte

           Minutes from the Meson 120 Working Group Meeting

Attendees: Jeff Appel, Win Baker, Greg Bock, Chuck Brown, Peter Cooper,
           Mike Crisler, Gaston Gutierrez, Dan Kaplan, Valery Kubarovsky,
           Paul Lebrun, Anthony Malensek, Stan Pruss, Sunil Somalwar,
           Linda Stutte

General discussion:  Our charge is to investigate whether experiments using
  largely existing equipment can do competitive physics in the Meson Area
  with 120 GeV beam extracted from the Main Injector, starting around the
  year 2000.  The Meson Area was originally sized for a 200 GeV proton beam, 
  and it's interior layout is quite flexible. Chuck Brown showed secondary 
  flux estimates which demonstrated the advantages of Fermilab over BNL quite
  clearly (orders of magnitide) at higher energies.  Even for 6 GeV Kaons,
  the BNL  x6 protons on target is offset by the Fermilab x6 production rates
  due to enhanced fluxes at low x.  Longer targets can further enhance low
  energy production, and Kaon production, for example, can be optimized
  by running at higher Pt, where beam fractions as high as 1/3 have been
  observed.  

Competition:  Brookhaven is sponsoring a workshop next week (AGS2000) to 
  explore many of these same physics issues, with the possibility of running
  the AGS for other physics after RHIC injection.  Greg Bock will be giving a
  presentation during the first day plenary session on the Fermilab 120 GeV
  program.  The Japanese 50 GeV Kaon Factory is also targetting some of these
  same topics, but on a later time scale (2004/5).  Presumably, the SPS could
  also be competitive. 

So far:  Approximately two dozen individuals have responded to our initial
  solicitation of interest.  Responses ranged from general interest to
  specific topics, such as rare Kaon decays, light quark spectroscopy, exotic
  atom production, polarized physics, tagged neutrino studies and offers 
  of useful existing equipment. Two Expressions of Interest have been received,
  one for a rare kaon decay experiment (CKM), K+ -> pi+ nu nubar, the other for
  a study of exotic atoms using a crystal spectrometer.  Numerous past 
  resources are available to draw on, including the '89 Breckenridge study, 
  three workshops (Santa Fe/Fermilab/BNL) on Future Directions in Particle and
  Nuclear Physics in '93, and the output from the Fermilab Fixed Target 
  Working Group in '95.  

Where do we go from here:  Chuck Brown will set up a home page for our working
  group and get pointers to it.  We will add relevant materials.  We plan to
  meet every other week at 12:30 - 1:30 in WH10NE, with the goal of organizing
  a workshop later this year focussed on the relevant physics issues.  Next
  meeting will include reports from Greg Bock and Gaston Gutierrez on AGS2000,
  a report on the CKM Expression of Interest from Peter Cooper, and a discussion
  of a possible light quark spectroscopy experiment from Paul Lebrun.