FIZIKA B 4 (1995) 3, 205-216

A NOVEL SYSTEM FOR PARTICLE IDENTIFICATION IN THE 3.0-8 GeV/c RANGE

SINICHI ESUMI^a, CHRISTIAN W. FABJAN^b, ACHIM FRANZ^b, BARBERA HOLZER^b,f, MASASHI KANETA^a, GUY PAI�^c,g, FRANCOIS PIUZ^b, JEAN-CLAUDE SANTIARD^b, JANUS SCHMIDT-SORENSEN^d, MARKO SPEGEL^b, TORN SUGITATE^a and THOMAS D. WILLIAMS^b
aHiroshima University, Higashi, Hiroshima, Japan
^bCERN, Geneva, Switzerland
^cSubatech, Nantes, France
^dNiels Bohr Institute, Copenhagen, Denmark
^fTechnical University, Vienna, Austria
^gOn leave of absence from Ru�er Bo�kovi� Institute, Zagreb, Croatia

Dedicated to Professor Mladen Pai� on the occasion of his 90^th birthday

Received 13 July 1995

A threshold imaging Cherenkov (TIC) detector, in conjunction with a tracking device, has been developed to allow pion/kaon, proton identification in the 3-8 GeV/c range of momenta. The most important feature of the system is that it allows spatial identification of the photons of particles above the Cherenkov threshold and their correlation to a particular track. The TIC detector uses a MWPC detector with TMAE for photon conversion into electrons. The first results obtained in ultrarelativistic lead-lead collisions at the CERN SPS accelerator are presented. In a recent development use of a solid CsI cathode instead of TMAE has been successfully tested in proton-lead collisions at the CERN SPS.

UDC 539.1.074
PACS 29.40.Ka

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