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Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV

New Crystal Barrel data are reported for pbar-p -> omega-pizero and pbar-p -> omega eta-pizero with omega decaying to piplus-piminus-pizero. The shapes of angular distributions agree well with those for data where omega -> pizero-gamma; this is a valuable cross-check on systematic errors. T...

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Detalles Bibliográficos
Autores principales: Anisovich, A.V., Baker, C.A., Batty, C.J., Bugg, D.V., Montanet, L., Nikonov, V.A., Sarantsev, A.V., Sarantsev, V.V., Zou, B.S.
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(02)02302-X
http://cds.cern.ch/record/1385131
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author Anisovich, A.V.
Baker, C.A.
Batty, C.J.
Bugg, D.V.
Montanet, L.
Nikonov, V.A.
Sarantsev, A.V.
Sarantsev, V.V.
Zou, B.S.
author_facet Anisovich, A.V.
Baker, C.A.
Batty, C.J.
Bugg, D.V.
Montanet, L.
Nikonov, V.A.
Sarantsev, A.V.
Sarantsev, V.V.
Zou, B.S.
author_sort Anisovich, A.V.
collection CERN
description New Crystal Barrel data are reported for pbar-p -> omega-pizero and pbar-p -> omega eta-pizero with omega decaying to piplus-piminus-pizero. The shapes of angular distributions agree well with those for data where omega -> pizero-gamma; this is a valuable cross-check on systematic errors. The new data provide good measurements of vector and tensor polarisations P_y, T20, T21 and T22 of the omega. These lead to significant improvements in parameters of several resonances reported earlier. New values of masses and widths (in Mev) are: J^PC = 5^-- (2300+-45, 260+-75), J^PC = 3^-- (2260+-20, 160+-25), J^PC = 1^+- (2240+-35, 320+-85), and J^PC = 1^-- (2110+-35, 230+-50). A remarkable feature of the data is that vector polarisation P_y is close to zero everywhere. It follows that all interfering amplitudes have relative phases close to 0 or 180 deg. Tensor polarisations are large.
id cern-1385131
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13851312019-09-30T06:29:59Zdoi:10.1016/S0370-2693(02)02302-Xhttp://cds.cern.ch/record/1385131engAnisovich, A.V.Baker, C.A.Batty, C.J.Bugg, D.V.Montanet, L.Nikonov, V.A.Sarantsev, A.V.Sarantsev, V.V.Zou, B.S.Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeVParticle Physics - ExperimentNew Crystal Barrel data are reported for pbar-p -> omega-pizero and pbar-p -> omega eta-pizero with omega decaying to piplus-piminus-pizero. The shapes of angular distributions agree well with those for data where omega -> pizero-gamma; this is a valuable cross-check on systematic errors. The new data provide good measurements of vector and tensor polarisations P_y, T20, T21 and T22 of the omega. These lead to significant improvements in parameters of several resonances reported earlier. New values of masses and widths (in Mev) are: J^PC = 5^-- (2300+-45, 260+-75), J^PC = 3^-- (2260+-20, 160+-25), J^PC = 1^+- (2240+-35, 320+-85), and J^PC = 1^-- (2110+-35, 230+-50). A remarkable feature of the data is that vector polarisation P_y is close to zero everywhere. It follows that all interfering amplitudes have relative phases close to 0 or 180 deg. Tensor polarisations are large.arXiv:1109.5247QMPI01QMPI01oai:cds.cern.ch:13851312011-09-27
spellingShingle Particle Physics - Experiment
Anisovich, A.V.
Baker, C.A.
Batty, C.J.
Bugg, D.V.
Montanet, L.
Nikonov, V.A.
Sarantsev, A.V.
Sarantsev, V.V.
Zou, B.S.
Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title_full Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title_fullStr Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title_full_unstemmed Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title_short Combined analysis of meson channels with I=1, C = -1 from 1940 to 2410 MeV
title_sort combined analysis of meson channels with i=1, c = -1 from 1940 to 2410 mev
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/S0370-2693(02)02302-X
http://cds.cern.ch/record/1385131
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