Diffractive Pion Dissociation into {pi}{sup -{pi}+{pi}-{pi}+{pi}-} at COMPASS

Journal Article · Thu Aug 05 04:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3483337· OSTI ID:21426398

Neubert, S ^[1]

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1. Physik Department, Technische Universitaet Muenchen, James-Franck-Str., D-85748 Garching (Germany)

At the COMPASS experiment a sample of {approx}380000 exclusive events of diffractive pion dissociation on a lead target into a {pi}{sup -{pi}+{pi}-{pi}+{pi}-} final state has been recorded in 2004. The 5{pi} invariant mass spectrum shows a momentum transfer dependent structure peaking around 1.8 GeV/c{sup 2}. In the (4{pi}){sup 0} subsystem there is a clear signal for the f{sub 1}(1285) resonance decaying into 4 pions. In this note we describe the data sample and explore the physics potential of this final state.

• OSTI ID: 21426398
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1257; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AXIAL VECTOR MESONS
BOSONS
CHARGED-PARTICLE REACTIONS
DECAY
DIFFRACTION MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
EXCLUSIVE INTERACTIONS
F1-1285 MESONS
GEV RANGE
HADRON REACTIONS
HADRONS
INTERACTIONS
LEAD 208 TARGET
MASS SPECTRA
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON REACTIONS
MESONS
MOMENTUM TRANSFER
MULTIPARTICLE SPECTROMETERS
NUCLEAR REACTIONS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PION MINUS REACTIONS
PION REACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SPECTRA
SPECTROMETERS
TARGETS