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HK: Physik der Hadronen und Kerne
HK 12: Poster Session: Instrumentation and Applications
HK 12.39: Poster
Tuesday, March 9, 2004, 13:30–15:30, Foyer
Results of Simulations on the TRD Physics Performance — •Tariq Mahmoud — Physikalisches Institut, Universität Heidelberg, Germany
One of the main physics objectives of the ALICE Transition Radiation Detector (TRD) is the measurement of quarkonia states via the di-electron decay channel.
From prototype tests we obtain a pion rejection factor in the order
of 100. With this electron identification capability, the TRD will
allow to sufficiently suppress the hadronic background present in high
energy nucleus collisions.
Performance parameters for fast simulations
were determined as function of angles, momenta and multiplicities of
the ALICE central barrel for Quarkonia
in a realistic background environment. This was achieved
using space point resolutions from test beam measurements in conjuction
with microscopic simulations of the
Inner Tracking System, the Time Projection Chamber and the TRD.
We report on our results and show how the TRD improves the Quarkonia
signals.