Agenda
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(1) Trigger Veto Studies              Alex Finch, Mark Lehto, Gerrit Prange
(2) Tagged jets                       Mark Lehto
(3) A.O.B.

 Minutes
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(1) Alex presented his study of the proposed trigger Veto using the number 
    of Ecal modules to veto events with only DBLCE2 or TRKCNT2 set. 
    He concluded that to be any use against background the veto would have 
    to be set at 4 modules but that would seriously impact on the gamma gamma 
    physics, and even at 8 it would kill events. The events lost would be at 
    high energies, e.g. total energy in Eflow around 20GeV, where events are 
    still only triggered by one of these two triggers in many cases. Mark and 
    Gerrit had come to similar conclusions. It was suggested that to pursue 
    this further additional code would be provided by the trigger group that 
    would allow studies of changing thresholds on other triggers, such as 
    total energy, which might allow these events to be recovered. This will 
    be discussed again at Siena

(2) Mark had been hoping to show the result of applying cone jet finding to 
    the partons produced by JETVip, however a bug prevented this. JETVIp is 
    a program that allows theoretical predictions for jet production by 
    virtual photons. He has however generated events using the new improved 
    Herwig `kt_dyn' algorithm and compared them to 183 GeV data. Agreement 
    with number of charged tracks and 1/N dE/d eta is very good, however 
    the number of eflow objects plotted against pseudorapidity (eta) does 
    not agree so well. Odd! He will investigate further. Hope to see more 
    in Siena.

(3) Roger Jones reported that interest was expressed in Tampere about Muon 
    pair production and asked if there was any prospect of producing a paper. 
    Chris Brew who worked on this for his thesis a few years ago is still in 
    the field but not now working on Aleph. If he doesn't do it, it seems 
    unlikely anyone else will in the short term.

 !!! Please check the copies of transparencies in Bld.2  as well !!!
                                                                    Alex