Re: problem with USRBIN & USRBDX results

From: Francesco Cerutti (Francesco.Cerutti@cern.ch)
Date: Fri Jan 26 2007 - 14:44:01 CET

  • Next message: Florian: "Re: problem with USRBIN & USRBDX results"

    Dear Hamide,
                  unfortunately in your input and source there are serious
    mistakes.

    TKEFLK (NPFLKA) = ENERGY is the TOTAL kinetic energy of your carbon
    nucleus and you write
                 ENERGY = (ENEUP(K) - ENELOW(K))/2
    instead of
                 ENERGY = (ENEUP(K) + ENELOW(K))/2 (better 2d0 or TWOTWO)
    thus getting non-sense low values.

    By the way your bins in fact range from 1.016 MeV (i.e. 85 keV/n) and
    please note that the carbon nuclear interactions will be simulated only
    for the last 5 bins (above 100 MeV/n -> 1.2 GeV).

    ENELOW(13) should be 0.98629D+02 and not 0.98629D+03.

    MOREOVER it is not enough to link DPMJET3 and RQMD event generators (by
    $FLUPRO/flutil/ldpm3qmd) to have nuclear interactions. In addition you
    have to put into your input an EVENTYPE card with WHAT(3)=2.0 and
    SDUM=DPMJET (you can find this problem in some previous messages).

    Finally (?), if you are using your own source routine, you cannot
    get an isotropic distribution by WHAT(3) of the BEAM card because
    the distribution is expected to be defined in your source itself.

    Good luck

    Francesco

    **************************************************
    Francesco Cerutti
    CERN-AB
    CH-1211 Geneva 23
    Switzerland
    tel. ++41 22 7678962
    fax ++41 22 7668854


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