EP Seminar

Precision spectroscopy at COMPASS: Observation of a new (exotic) light axial vector meson and a deeper look into decay dynamics

Name: Precision spectroscopy at COMPASS: Observation of a new (exotic) light axial vector meson and a deeper look into decay dynamics
Start: 2013-12-10T11:00:00+01:00
End: 2013-12-10T12:00:00+01:00
Location: CERN

by Stephan Paul (Technische Universitaet Muenchen (DE))

Tuesday 10 Dec 2013, 11:00 → 12:00 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

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Description

The COMPASS experiment is studying diffractive meson production using a 190 GeV/c pion beam. High statistical accuracy has triggered the development of innovative analysis schemes not possible in previous experiments and lead to the discovery of new hadronic states. Among these is the observation of a new light (possibly exotic) axial vector meson, the interpretation of which is still open. In addition we have analyzed the pi-pi S-wave content in exclusive 3pi-events. As a result of our analysis also the interpretation of resonance structures can now be clarified using the variation of production rates with the four momentum transfer, allowing to identify resonant and non-resonant components in the spectra. In addition to the 3pi final states we will also give an overview on results obtained with other particles forming the final state and present an outlook on forthcoming results.

Organised by

M. Mangano, C. Lourenco, G. Unal......................... Tea and Coffee will be served at 10h30

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Precision spectroscopy at COMPASS: Observation of a new (exotic) light axial vector meson and a deeper look into decay dynamics

by Stephan Paul (Technische Universitaet Muenchen (DE))

500/1-001 - Main Auditorium

CERN