From: murray@comp.tamu.edu
Date: Thu Oct 17 2002 - 18:23:06 EDT
Can one not take the approach that if the dbar hits anything hard it
will split up into an nbar and pbar. Thus one could create a dbar in
GEANT and then check everytime GUHADR if it is scheduled to have a
hadronic interaction. At that point one could kill it and transform into
a pbar and nbar.
Alternatively one can do the analysis separely for dbars and nbars
at least when you are out of the magnetic fields.
Michael
Quoting Flemming Videbaek <videbaek@sgs1.hirg.bnl.gov>:
> Hi
> To the best of my knowledge anti-deuterons are not defined in geant !
> One can certainly define a particle being a anti-deuteron, and one can make
> it behave properly in regard
> to multiple scattering, energy loss and tracking - but NOT for hadronic
> integraction (and absorbtion) which
> requires a proper interface to the tracking part of hadronic interaction.
> Good but tough problem.
>
> Flemming'
> ------------------------------------------------------
> Flemming Videbaek
> Physics Department
> Brookhaven National Laboratory
>
> tlf: 631-344-4106
> fax 631-344-1334
> e-mail: videbaek@bnl.gov
> ----- Original Message -----
> From: "Marco Germinario" <germina@hilux17.nbi.dk>
> To: "Flemming Videbaek" <videbaek@sgs1.hirg.bnl.gov>
> Sent: Thursday, October 17, 2002 4:35 PM
> Subject: Re: deuterons in brag
>
>
> >
> > Hi Flemming,
> > I've been looking at the Geant manual, and the deuteron number is 45.Th
> > e problem is I can't find out how to throw antideuterons,and how to
> > rethreive them,if f ex i want to find the ratio between thrown and
> > accepted antideuterons. And at which point I should issue the command
> > cont/print part 0 ?
> > Thanks
> > Marco
> >
> >
> >
> >
> > On Tue, 15 Oct 2002, Flemming Videbaek wrote:
> >
> > > This kind of stuff can be looked up in the Geant html description - or
> when
> > > running brag
> > > issue an cont/print part 0 that will print all the particles that geant
> > > knows of.
> > > Deuteron are '42'
> > >
> > >
> > > ------------------------------------------------------
> > > Flemming Videbaek
> > > Physics Department
> > > Brookhaven National Laboratory
> > >
> > > tlf: 631-344-4106
> > > fax 631-344-1334
> > > e-mail: videbaek@bnl.gov
> > > ----- Original Message -----
> > > From: "Marco Germinario" <germina@hilux03.nbi.dk>
> > > To: <brahms-dev-l@bnl.gov>
> > > Sent: Tuesday, October 15, 2002 2:36 PM
> > > Subject: deuterons in brag
> > >
> > >
> > > >
> > > > I'm making some knock out simulations for the beam pipe in brag,and
> have
> > > > to look at protons and
> > > > deuterons produced, vs pt.Does someone know which is the id number
> for
> > > > deuterons,if brag take it into account,or if some special procedure
> before
> > > > to launch the simulation has to be taken?
> > > > Thanks,
> > > > Marco
> > > >
> > > > --
> > > >
> > > > Marco Germinario
> > > > --------------------------------------------------
> > > > University address : Personal address
> > > > :
> > > > Niels Bohr Institute : Noerre Alle' 75,518
> > > > Blegdamesvej 17,Ta-2 : Egmont kollegium
> > > > Copenhagen, Danmark : 2100 Copenhagen
> > > > Mail: germina@nbi.dk : Danmark
> > > > Tlf : + 45 35325305 : Tlf: +45 82320518
> > > >
> > > > Mob: +45 26720446
> > > > ---------------------------------------------------
> > > >
> > >
> > >
> >
> > --
> >
> > Marco Germinario
> > --------------------------------------------------
> > University address : Personal address
> > :
> > Niels Bohr Institute : Noerre Alle' 75,518
> > Blegdamesvej 17,Ta-2 : Egmont kollegium
> > Copenhagen, Danmark : 2100 Copenhagen
> > Mail: germina@nbi.dk : Danmark
> > Tlf : + 45 35325305 : Tlf: +45 82320518
> >
> > Mob: +45 26720446
> > ---------------------------------------------------
> >
>
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