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Re: generate rho0->pi+pi- but found the rho0 has no width [message #19318 is a reply to message #19315] Fri, 03 June 2016 15:04 Go to previous messageGo to previous message
Ingo Froehlich is currently offline  Ingo Froehlich
Messages: 167
Registered: March 2004
Location: IKF - Frankfurt
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This is because the decay eta' -> rho0 + gamma has no model included, one can see this in the printout:

2. eta' --> rho0 + photon
Interaction model(s):
[eta'_fixed_g_rho0] Fixed product masses {/}
[eta'_genbod_g_rho0] Pluto build-in genbod {/genbod}

I don't know if this is the correct physics model, but a decay with a simple Breit-Wigner can done by adding these lines:

PHadronDecayM1N *newmodel =
new PHadronDecayM1N("rho_model@eta'_to_rho0_g", "Patched rho model", -1);

Ingo Froehlich
IKF - University of Frankfurt
069-798-47027, FAX: -47024
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