11th Collaboration Meeting of the
CBM Experiment at FAIR
February 26 - 29, 2008 -
Information

Title:	Ms.
Family Name:	Akishina
First Name:	Tatiana
Gender:	female
E-Mail:	pakishinajinr.ru
Affiliation for Badge:	JINR, Dubna
Institute:
Address (Street):	Leningradskaya str. 26-6
Postal Code, City:	141980 Dubna, Moscow region
Country:	Russia
Phone:	+7-496-21-47301
Fax:	+7-496-21-65145
Arrival Date:	February 24
Departure Date:	March 2
Hotel Information:	GSI Guesthouse and Hostel
Author(s):	T.P.Akishina (1), O.Yu.Denisova (1), V.V.Ivanov (1), and S.A.Lebedev (1,2)
Institute(s):	(1) JINR, Dubna; (2) GSI, Darmstadt
Title:	On e/pi identification: comparison of TRD prototype measurements with GEANT simulations at p=1.5 GeV/c
Abstract:	We compare the distributions of e/pi energy losses in the TRD prototype and GEANT simulations of the n-layered TRD realized in frames of the CBM ROOT at p=1.5 GeV/c. It is shown that the GEANT simulations quite well reproduce real measurements for both pions and electrons. However, contrary to the real measurements, we failed to obtain a comparable level of pion's suppression for the most powerful method based on the likelihood functions ratio test. A detailed analysis of GEANT data permitted one to understand the reason of such a behaviour and to reproduce results of real measurements.

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