The Y(4260) and Y(4360) enhancements within coupled-channels

Puzzling structures have been observed in the charmonium energy region, namely the Y(4260) and the Y(4360), that cannot be easily accommodated within quark model frameworks. The proximity of nearby dominant hadronic thresholds suggests that they play an important role in the formation of the enhance...

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Main Author: Coito Susana
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_04003.pdf
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spelling doaj-093d25d03b9644b59a9f89d63e2026d62021-08-02T01:33:57ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-011990400310.1051/epjconf/201919904003epjconf_meson2019_04003The Y(4260) and Y(4360) enhancements within coupled-channelsCoito Susana0Jan Kochanowski UniversityPuzzling structures have been observed in the charmonium energy region, namely the Y(4260) and the Y(4360), that cannot be easily accommodated within quark model frameworks. The proximity of nearby dominant hadronic thresholds suggests that they play an important role in the formation of the enhancements. We present results of an unitarized effective Lagrangian model, where mesonic loops, equivalent to coupled-channels, and charmonium vectors ψ interplay to generate line-shapes and poles.https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_04003.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Coito Susana
spellingShingle Coito Susana
The Y(4260) and Y(4360) enhancements within coupled-channels
EPJ Web of Conferences
author_facet Coito Susana
author_sort Coito Susana
title The Y(4260) and Y(4360) enhancements within coupled-channels
title_short The Y(4260) and Y(4360) enhancements within coupled-channels
title_full The Y(4260) and Y(4360) enhancements within coupled-channels
title_fullStr The Y(4260) and Y(4360) enhancements within coupled-channels
title_full_unstemmed The Y(4260) and Y(4360) enhancements within coupled-channels
title_sort y(4260) and y(4360) enhancements within coupled-channels
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2019-01-01
description Puzzling structures have been observed in the charmonium energy region, namely the Y(4260) and the Y(4360), that cannot be easily accommodated within quark model frameworks. The proximity of nearby dominant hadronic thresholds suggests that they play an important role in the formation of the enhancements. We present results of an unitarized effective Lagrangian model, where mesonic loops, equivalent to coupled-channels, and charmonium vectors ψ interplay to generate line-shapes and poles.
url https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_04003.pdf
work_keys_str_mv AT coitosusana they4260andy4360enhancementswithincoupledchannels
AT coitosusana y4260andy4360enhancementswithincoupledchannels
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