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Re: DPM theta cut off [message #13904 is a reply to message #13890]

Wed, 29 August 2012 11:09

donghee
Messages: 385
Registered: January 2009
Location: Germnay

first-grade participant

From: *kph.uni-mainz.de

I'm considering now a simple approach to introduce cut off parmater theta according Thomas work.

I found cut off values for certain beam momentum from the equation, which is suggested in his Thesis.

Quote:

double mom = 15; //beam momentum
double cut = 0.0777-0.976*TMath::Log10(mom);
double cutoff=TMath::Power(10, cut);

Quote:

mom = 1.43170 ; cms = 2.23 ; cut off theta =0.842536
mom = 15.000 ; cms = 5.474 ; cut off theta =0.085079

Then I put this value into the theta minimum in the control option for PndDpmDirect.

Could someone confirm about the value and this approach?

Best wishes,
Donghee

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[Message index]

		DPM theta cut off By: donghee on Mon, 27 August 2012 16:49
		Re: DPM theta cut off By: Simone Bianco on Mon, 27 August 2012 17:37
		Re: DPM theta cut off By: donghee on Wed, 29 August 2012 11:09
		Re: DPM theta cut off By: Simone Bianco on Wed, 29 August 2012 11:28
		Re: DPM theta cut off By: donghee on Wed, 29 August 2012 12:26
		Re: DPM theta cut off By: Mathias Michel on Wed, 29 August 2012 13:25
		Re: DPM theta cut off By: donghee on Wed, 29 August 2012 14:51

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