The High-Acceptance Dielectron Spectrometer HADES
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 degree, 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. This paper describes the main features and the performance of the detector system.
Cite
@article{arxiv.0902.3478,
title = {The High-Acceptance Dielectron Spectrometer HADES},
author = {The HADES Collaboration and G. Agakishiev and A. Balanda and B. Bannier and R. Bassini and D. Belver and A. V. Belyaev and A. Blanco and M. Boehmer and J. L. Boyard and P. Braun-Munzinger and P. Cabanelas and E. Castro and S. Chernenko and T. Christ and M. Destefanis and J. Diaz and F. Dohrmann and A. Dybczak and T. Eberl and W. Enghardt and L. Fabbietti and O. V. Fateev and P. Finocchiaro and P. Fonte and J. Friese and I. Froehlich and T. Galatyuk and J. A. Garzon and R. Gernhaeuser and A. Gil and C. Gilardi and M. Golubeva and D. Gonzalez-Diaz and F. Guber and M. Heilmann and T. Heinz and T. Hennino and R. Holzmann and A. Ierusalimov and I. Iori and A. Ivashkin and M. Jurkovic and B. Kaempfer and K. Kanaki and T. Karavicheva and D. Kirschner and I. Koenig and W. Koenig and B. W. Kolb and R. Kotte and F. Krizek and R. Kruecken and W. Kuehn and A. Kugler and A. Kurepin and S. Lang and J. S. Lange and K. Lapidus and T. Liu and L. Lopes and M. Lorenz and L. Maier and A. Mangiarotti and J. Markert and V. Metag and B. Michalska and J. Michel and D. Mishra and E. Moriniere and J. Mousa and C. Muentz and L. Naumann and J. Otwinowski and Y. C. Pachmayer and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and T. PerezCavalcanti and J. Pietraszko and W. Przygoda and B. Ramstein and A. Reshetin and M. Roy-Stephan and A. Rustamov and A. Sadovsky and B. Sailer and P. Salabura and A. Schmah and E. Schwab and Yu. G. Sobolev and S. Spataro and B. Spruck and H. Stroebele and J. Stroth and C. Sturm and M. Sudol and A. Tarantola and K. Teilab and P. Tlusty and M. Traxler and R. Trebac and H. Tsertos and V. Wagner and M. Weber and M. Wisniowski and T. Wojcik and J. Wuestenfel and S. Yurevich and Y. V. Zanevsky and P. Zhou and P. Zumbruch},
journal= {arXiv preprint arXiv:0902.3478},
year = {2010}
}