THE HERMES SPECTROMETER

Authors
ACKERSTAFF K AIRAPETIAN A AKOPOV N AMARIAN M ANDREEV V ASCHENAUER EC AVAKIAN R AVAKIAN H AVETISSIAN A BAINS B BARROW S BECKHUSEN W BECKMANN M BELOSTOTSKI S BELZ E BENISCH T BERNREUTHER S BIANCHI N BLOUW J BOTTCHER H BORISSOV A BRACK J BRAUN B BRAY B BRONS S BRUCKNER W BRULL A BULTEN HJ CAPITANI GP CARTER P CHUMNEY P CISBANI E CLARK S COLILLI S COOMBES H COURT GR DELHEIJ P DEVITSIN E DEJAGER CW DESANCTIS E DESCHEPPER D HUBERTS PKAD DINEZZA P DOETS M DUREN M DVOREDSKY A ELBAKIAN G EMERSON J FANTONI A FECHTCHENKO A FERSTL M FRULLANI S FUNK MA GAGUNASHVILI ND GALUMIAN P GAO H GARBER Y GARIBALDI F GAVRILOV G GEIGER P GHARIBYAN V GIORDJIAN V GIULIANI F GOLENDOUKHIN A GRABOWSKI B GRAW G GREBENIOUK O GREEN P GREENIAUS G GRICIA M GROSSHAUSER C GUTE A HAAS JP HAKELBERG K HAEBERLI W HANSEN JO HASCH D HAUSSER O HENDERSON R HENKES T HERTENBERGER R HOLLER Y HOLT RJ IHSSEN H IZOTOV A IODICE M JACKSON HE JGOUN A JONES C KAISER R KELSEY J KINNEY E KIRSCH M KISSELEV A KITCHING P KOBAYASHI H KOK E KONIGSMANN K KOLSTEIN M KOLSTER H KORSCH W KOZLOV S KOZLOV V KOWALCZYK R KRAMER L KRAUSE B KRIVCHITCH A KRIVOKHIJINE VG KUECKES M KUTT P KYLE G LACHNIT W LANGSTAFF R LORENZON W LUCENTINI M LUNG A MAKINS N MALEEV V MANAENKOV SI MARTENS K MATEOS A MCILHANY K MCKEOWN RD MEISSNER F MENDEN F MERCER D METZ A MEYNERS N MIKLOUKHO O MILLER CA MILLER MA MILNER R MITSYN V MODRAK G MORTON J MOST A MOZZETTI R MUCCIFORA V NAGAITSEV A NARYSHKIN Y NATHAN AM NEUNREITHER F NICZYPORUK M NOWAK WD NUPIERI M OELWEIN P OGAMI H ONEILL TG OPENSHAW R PAPAVASSILIOU V PATE SF PATRICHEV S PITT M PLETT HJ POOLMAN HR POTASHOV S POTTERVELD D POVH B PRAHL V RAKNESS G RAZMYSLOVICH V REDWINE R REOLON AR RISTINEN R RITH K ROLOFF HO ROPER G ROSSI P RUDNITSKY S RUSSO H RYCKBOSCH D SAKEMI Y SANTAVENERE F SAVIN I SCHMIDT F SCHMITT H SCHNELL G SCHULER KP SCHWIND A SHIBATA TA SHIN T SIEBELS B SIMON A SINRAM K SMYTHE WR SOWINSKI J SPENGOS M SPERBER K STEFFENS E STENGER J STEWART J STOCK F STOSSLEIN U SUTTER M TALLINI H TAROIAN S TERKULOV A THIESSEN D TIPTON B TROFIMOV V TRUDEL A TYTGAT M URCIUOLI GM VANDEVYVER R VANDENBRAND JFJ VANDERSTEENHOVEN G VANHUNEN JJ VANWESTRUM D VASSILIEV A VETTERLI MC VINCTER MG VOLK E WANDER W WELCH TP WILLIAMSON SE WISE T WOBKE G WOLLER K YONEYAMA S ZAPFEDUREN K ZEULI T ZOHRABIAN H
Citation
K. Ackerstaff et al., THE HERMES SPECTROMETER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 417(2-3), 1998, pp. 230-265
Citations number
41
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
417
Issue
2-3
Year of publication
1998
Pages
230 - 265
Database
ISI
SICI code
0168-9002(1998)417:2-3<230:>2.0.ZU;2-P
Abstract
The HERMES experiment is collecting data on inclusive and semi-inclusi ve deep inelastic scattering of polarised positrons from polarised tar gets of Il, D, and He-3. These data give information on the spin struc ture of the nucleon. This paper describes the forward angle spectromet er built for this purpose. The spectrometer includes numerous tracking chambers (micro-strip gas chambers, drift and proportional chambers) in front of and behind a 1.3 T.m magnetic held, as well as an extensiv e set of detectors for particle identification (a lead-glass calorimet er, a pre-shower detector, a transition radiation detector, and a thre shold Cherenkov detector). Two of the main features of the spectromete r are its good acceptance and identification of both positrons and had rons, in particular pions. These characteristics, together with the pu rity of the targets, are allowing HERMES to make unique contributions to the understanding of how the spins of the quarks contribute to the spin of the nucleon. (C) 1998 Elsevier Science B.V. All rights reserve d.