HERA Experiment Coordination Meeting Friday, 14.05.2001 __________________________________________________________

Agenda

  - Status and schedule of shutdown activities

  - Plans and schedule for HERA startup

  - Plans for switching to electrons

  - Date of next meeting

  - AoB

Presentations

  •  HERA, F.Willeke transparencies
     
  •  ZEUS, B.Foster  transparencies

    •  
  •  H1, C.Niebuhr   transparencies

    •  
  •  HERMES, J.Stewart  status transparencies, beam loss monitors transparencies

    •  
  •  HERA B, A.Spengler   transparencies

    •  
  •  Polarimeter, T.Behnke   transparencies 

    •  Discussion on switching to electrons

    HERA will startup with positron beam as scheduled.
      The machine group would like to establish high luminosity operation before switching to electrons. ZEUS would like to take electron data as possible. The ZEUS proposal is to switch to electrons during the Christmas shutdown. The highest priority of H1 is high integrated luminosity with polarization and to collect about 50 pb-1 before going to electrons. HERMES and HERA B have no strong preference for electron or positron beams. Their main interest is stable and good beam conditions.
      There was a discussion whether one week of HERA operation with high luminosity (about 4 10**31 cm-2 s-1) would be sufficient before switching to electrons. The decision of the switch over date was postponed until the next meeting.
     

    The next meeting is  Monday, 19.11.2001 10:00hrs seminar room 1.

                                Uwe Schneekloth