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beta in the gamma generator in r3ball.C [message #19225] Mon, 18 April 2016 15:00 Go to next message
Leyla Atar is currently offline  Leyla Atar
Messages: 5
Registered: April 2016
occasional visitor
From: *ikp.physik.tu-darmstadt.de
I have a question about the r3bsim. In the file macros/r3b/califa/r3ball.C there is a defined beta in the gamma generator (line no: 337)

gammasGen->SetLorentzBoost(0.819750....) // beta=0.81975 for 700 AMeV

I generate the reaction with the appropriate beam energy, and then I give this as input in the simulation. My question is should I change the SetLorentzBoost every time depending on the simulated beam energy or should I ignore this command line?
Re: beta in the gamma generator in r3ball.C [message #19228 is a reply to message #19225] Mon, 18 April 2016 17:45 Go to previous message
Hector Alvarez Pol is currently offline  Hector Alvarez Pol
Messages: 21
Registered: July 2015
Location: Univ. Santiago de Compost...
occasional visitor
From: *red-176-83-220.dynamicip.rima-tde.net
Hi,
The command should be called with the fragments velocity as argument to produce a Lorentz boost in the energies and angles of the gammas.
Let me remember that this generator only generates the gammas and not fragments.

Best regards
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