The high-intensity hyperon beam at CERN

被引：17

作者：

Alexandrov, YA

Clement, M

Dropmann, F

Fournier, A

Grafstrom, P

Hubbard, E

Paul, S

Schmitt, L

Siebert, HW

Trombini, A

Zavertiaev, M

机构：

[1] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

[2] Moscow Lebedev Phys Inst, RU-117924 Moscow, Russia

[3] CERN, CH-1211 Geneve, Switzerland

[4] Grenoble ISN, F-38026 Grenoble, France

[5] Univ Heidelberg, D-69120 Heidelberg, Germany

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1998年 / 408卷 / 2-3期

关键词：

hyperon beam; Sigma(-) and Xi(-) production; hyperon production;

D O I：

10.1016/S0168-9002(98)00228-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A high-intensity hyperon beam was constructed at CERN to deliver Sigma(-) to experiment WA89 at the Omega facility and operated from 1989 to 1994. The setup allowed rapid changeover between hyperon and conventional hadron beam configurations. The beam provided a Sigma(-) flux of 1.4 x 10(5) per burst at mean momenta between 330 and 345 GeV/c produced by about 3 x 10(10) protons of 450 GeV/c, At the experiment target the beam had a Sigma(-)/pi(-) ratio close to 0.4 and a size of 1.6 x 3,7cm(2). The beam particle trajectories and their momenta were measured with a scintillating fibre hodoscope in the beam channel and a silicon microstrip detector at the exit of the channel. A fast transition radiation detector was used to identify the pion component of the beam. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：359 / 372

页数：14

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