HADES is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion-induced collisions. Its main features include a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers and a multiplicity and electron trigger array for additional electron-hadron discrimination and event characterization. A two-stage trigger system enhances events containing electrons. The physics program is focused on the investigation of hadron properties in nuclei and in the hot and dense hadronic matter. The detector system is characterized by an 85% azimuthal coverage over a polar angle interval from 18° to 85° , a single electron efficiency of 50% and a vector meson mass resolution of 2.5%. Identification of pions, kaons and protons is achieved combining time-of-flight and energy loss measurements over a large momentum range ( 0.1 < p < 1.0 GeV/c . This paper describes the main features and the performance of the detector system.

The high-acceptance dielectron spectrometer HADES

DESTEFANIS, MARCO GIOVANNI;SPATARO, STEFANO GIOVANNI;
2009-01-01

Abstract

HADES is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion-induced collisions. Its main features include a ring imaging gas Cherenkov detector for electron-hadron discrimination, a tracking system consisting of a set of 6 superconducting coils producing a toroidal field and drift chambers and a multiplicity and electron trigger array for additional electron-hadron discrimination and event characterization. A two-stage trigger system enhances events containing electrons. The physics program is focused on the investigation of hadron properties in nuclei and in the hot and dense hadronic matter. The detector system is characterized by an 85% azimuthal coverage over a polar angle interval from 18° to 85° , a single electron efficiency of 50% and a vector meson mass resolution of 2.5%. Identification of pions, kaons and protons is achieved combining time-of-flight and energy loss measurements over a large momentum range ( 0.1 < p < 1.0 GeV/c . This paper describes the main features and the performance of the detector system.
2009
41
243
277
Mesons in nuclear matter; Photon lepton and heavy quark production in relativistic heavy ion collisions; Spectrometers and spectroscopic techniques; Data acquisition and sorting
G. Agakichiev; C. Agodi; H. Alvarez-Pol; E. Atkin; E. Badura; A. Balanda; A. Bassi; R. Bassini; G. Bellia; D. Belver; A. V. Belyaev; M. Benovic; D. Bertini; J. Bielcik; M. Böhmer; C. Boiano; H. Bokemeyer; A. Bartolotti; J. L. Boyard; S. Brambilla; P. Braun-Munzinger; P. Cabanelas; E. Castro; V. Chepurnov; S. Chernenko; T. Christ; R. Coniglione; L. Cosentino; M. Dahlinger; H. W. Daues; M. Destefanis; J. Díaz; F. Dohrmann; R. Dressler; I. Durán; A. Dybczak; T. Eberl; W. Enghardt; L. Fabbietti; O. V. Fateev; C. Fernández; P. Finocchiaro; J. Friese; I. Fröhlich; B. Fuentes; T. Galatyuk; C. Garabatos; J. A. Garzón; B. Genolini; R. Gernhäuser; C. Gilardi; H. Gilg; M. Golubeva; D. González-Díaz; E. Grosse; F. Guber; J. Hehner; K. Heidel; T. Heinz; T. Hennino; S. Hlavac; J. Hoffmann; R. Holzmann; J. Homolka; J. Hutsch; A. P. Ierusalimov; I. Iori; A. Ivashkin; M. Jaskula; J. C. Jourdain; M. Jurkovic; B. Kämpfer; M. Kajetanowicz; K. Kanaki; T. Karavicheva; A. Kastenmüller; L. Kidon; P. Kienle; D. Kirschner; I. Koenig; W. Koenig; H. J. Körner; B. W. Kolb; U. Kopf; K. Korcyl; R. Kotte; A. Kozuch; F. Krizek; R. Krücken; W. Kühn; A. Kugler; R. Kulessa; A. Kurepin; T. Kurtukian-Nieto; S. Lang; J. S. Lange; K. Lapidus; J. Lehnert; U. Leinberger; C. Lichtblau; E. Lins; C. Lippmann; M. Lorenz; D. Magestro; L. Maier; P. Maier-Komor; C. Maiolino; A. Malarz; T. Marek; J. Markert; V. Metag; B. Michalska; J. Michel; E. Migneco; D. Mishra; E. Morinière; J. Mousa; M. Münch; C. Müntz; L. Naumann; A. Nekhaev; W. Niebur; J. Novotny; R. Novotny; W. Ott; J. Otwinowski; Y. C. Pachmayer; M. Palka; Y. Parpottas; V. Pechenov; O. Pechenova; T. Pérez Cavalcanti; M. Petri; P. Piattelli; J. Pietraszko; R. Pleskac; M. Ploskon; V. Pospísil; J. Pouthas; W. Prokopowicz; W. Przygoda; B. Ramstein; A. Reshetin; J. Ritman; G. Roche; G. Rodriguez-Prieto; K. Rosenkranz; P. Rosier; M. Roy-Stephan; A. Rustamov; J. Sabin-Fernandez; A. Sadovsky; B. Sailer; P. Salabura; C. Salz; M. Sánchez; P. Sapienza; D. Schäfer; R. M. Schicker; A. Schmah; H. Schön; W. Schön; C. Schroeder; S. Schroeder; E. Schwab; P. Senger; K. Shileev; R. S. Simon; M. Skoda; V. Smolyankin; L. Smykov; M. Sobiella; Yu. G. Sobolev; S. Spataro; B. Spruck; H. Stelzer; H. Ströbele; J. Stroth; C. Sturm; M. Sudoł; M. Suk; M. Szczybura; A. Taranenko; A. Tarantola; K. Teilab; V. Tiflov; A. Tikhonov; P. Tlusty; A. Toia; M. Traxler; R. Trebacz; A. Yu. Troyan; H. Tsertos; I. Turzo; A. Ulrich; D. Vassiliev; A. Vázquez; Y. Volkov; V. Wagner; C. Wallner; W. Walus; Y. Wang; M. Weber; J. Wieser; S. Winkler; M. Wisniowski; T. Wojcik; J. Wüstenfeld; S. Yurevich; Y. V. Zanevsky; K. Zeitelhack; A. Zentek; P. Zhou; D. Zovinec; P. Zumbruch
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/62314
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 313
  • ???jsp.display-item.citation.isi??? 242
social impact