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Re: PANDA ToF Task Force Questions [message #8952 is a reply to message #8919] Tue, 07 July 2009 17:58 Go to previous messageGo to previous message
Klaus Föhl is currently offline  Klaus Föhl
Messages: 31
Registered: March 2006
continuous participant
 From: *physik.uni-giessen.de
Dear colleagues, dear Lars, dear Stan,

Here in Giessen we are interested in the reactions p-bar p going to gamma gamma and also p-bar p going to gamma pi0. It is the inverse reaction to (virtual) gamma gamma going to p-bar p which has been measured at Belle and also cross channel to Compton scattering.

Our current simulations show that from the statistics and background we are close to the feasibility limit in PANDA. Any further material upstream of the EMC acts as a pre-shower component and degrades the EMC performance.

Hence we suggest to include these two physics channels into the simulation programme for the RPC ToF detector assessment.

Best regards from Giessen

Klaus (Föhl)

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