Title of article
The development of the optical discriminator
Author/Authors
Atac، نويسنده , , M. and Charpak، نويسنده , , G. and Chipaux، نويسنده , , R. and Delbart، نويسنده , , A. and Derre، نويسنده , , J. and Giomataris، نويسنده , , Zoe Y. and Hill، نويسنده , , T. and Joseph، نويسنده , , C. and Kaplan، نويسنده , , D.M. and Kochowski، نويسنده , , C. and Leros، نويسنده , , N. and Loucatos، نويسنده , , S. and Perroud، نويسنده , , P. Rebourgeard، نويسنده , , Ph. and Rosenberg، نويسنده , , E.I.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1995
Pages
5
From page
372
To page
376
Abstract
New results from the tests of the impact parameter discriminator by the RD30 Collaboration are presented. The device, based on the detection of Cherenkov light produced in a thin crystal, is able to cope with extremely high rates in the GHz range and sign tracks with non-zero impact parameter at a first trigger level. We report experimental results obtained with a sapphire shell surrounded by a liquid cladding compensating chromatic dispersion. An excellent signal to background ratio has been obtained and the sensitivity at low impact parameters reaches the requirements for efficient B-meson selection. The use of such a device for hyperon selection will also be discussed.
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
1995
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
1996357
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