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A study of the ({omega}{pi}{sup {+-}}{pi}{sup {+-}}) state, where {omega}{yields}{pi}{sup +}{pi}{sup -}{pi}{sup 0} in the reaction {pi}{sup -}p{yields}{pi}{sup +}{pi}{sup +}{pi}{sup -}{pi}{sup -}{pi}{sup 0}n at 18 GeV/c

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.56059· OSTI ID:21185756
 [1]
  1. Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)
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This study is based on a subset of events of the type {pi}{sup +}{pi}{sup +}{pi}{sup -}{pi}{sup -}{gamma}{gamma}, from the {pi}{sup -}p interaction in the 1995 run of E852, A Search for Mesons with Unusual Quantum Numbers at the MPS facility of BNL. The data set is reduced such that it contains events of the type {omega}{pi}{sup -}{pi}{sup +} to be used in the Partial Wave Analysis (PWA) of the system. In the {omega}{pi}{sup {+-}} and the 4{pi} mass spectra, we observe b{sub 1}(1235) and {rho}{sub 3}(1690) signals. In the {pi}{sup -}{pi}{sup +} off of the {omega} we see a large contribution due to {rho}(770) followed by a smaller contribution due to f{sub 2}(1270). The b{sub 1}{sup {+-}} production seems to be enhanced for the {omega}{pi}{sup -}{pi}{sup +} mass near 2 GeV, with more b{sub 1}{sup -} produced than b{sub 1}{sup +}. A spin parity analysis of the {omega}{pi}{sup -}{pi}{sup +} system to look for radial excitations and states with exotic quantum numbers is under way.

OSTI ID:
21185756
Journal Information:
AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 432; ISSN APCPCS; ISSN 0094-243X
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B1-1235 MESONS
BNL
EXCITATION
F2-1270 MESONS
GEV RANGE
OMEGA-782 MESONS
PARTIAL WAVES
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PION-PROTON INTERACTIONS
PIONS MINUS
PIONS NEUTRAL
PIONS PLUS
QUANTUM NUMBERS
REST MASS
RHO-770 MESONS
RHO3-1690 MESONS
SPIN