High statistics light meson spectroscopy with the COMPASS spectrometer

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Abstract

Hadron spectroscopy is one of the main topics within the COMPASS experiment. Three production mechanisms are used to study exotic states and to search for glueballs: diffractive and central production with pions and protons using a liquid hydrogen target and diffraction and Primakoff reactions with pions impinging on nuclear targets. While the main data taking has been performed in 2008 and 2009, where the statistics of previous experiments has been boosted by a factor 10-100, early measurements with diffractive production on nuclear targets in 2004 have confirmed the existence of an exotic state at a mass around 1.6 GeV. In this paper we report on the final analysis of our 2004 data discussing the evidence for the exotic π(1600) and show first insights into the results of the analysis from 2008 data using various final states, thus demonstrating the data quality and potential of the COMPASS data set.

Original languageEnglish
Title of host publicationHadron 2009 - Proceedings of the XIII International Conference on Hadron Spectroscopy
Pages69-76
Number of pages8
DOIs
StatePublished - 2010
Event13th International Conference on Hadron Spectroscopy, Hadron 2009 - Tallahassee, FL, United States
Duration: 29 Nov 20094 Dec 2009

Publication series

NameAIP Conference Proceedings
Volume1257
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference13th International Conference on Hadron Spectroscopy, Hadron 2009
Country/TerritoryUnited States
CityTallahassee, FL
Period29/11/094/12/09

Keywords

  • Central production
  • Diffraction
  • Exotic mesons
  • Glueball
  • Nuclear effects
  • Partial wave analysis

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