Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes
The experimental line shapes available in the BB¯$ \bar {B} $*, B*B¯$ \bar {B} $*, hb(1P)π and hb(2P)π channels are analysed using a theoretical EFT-based framework manifestly consistent with unitarity and analyticity. The line shapes are calculated using a system of coupled channel integral equatio...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/07/epjconf_charm2018_06012.pdf |
| _version_ | 1818645542018744320 |
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| author | Baru V. Filin A. A. Hanhart C. Nefediev A. V. Wang Q. Wynen J.-L. |
| author_facet | Baru V. Filin A. A. Hanhart C. Nefediev A. V. Wang Q. Wynen J.-L. |
| author_sort | Baru V. |
| collection | DOAJ |
| description | The experimental line shapes available in the BB¯$ \bar {B} $*, B*B¯$ \bar {B} $*, hb(1P)π and hb(2P)π channels are analysed using a theoretical EFT-based framework manifestly consistent with unitarity and analyticity. The line shapes are calculated using a system of coupled channel integral equations with the potential consisting of the one-pion and one-eta meson exchange interactions from the lightest Goldstone boson octet as well as of several contact terms at leading and subleading orders which are adjusted to minimise the overall chi squared. The pole positions of the Zb(10610) and Zb(10650) are extracted for the best fits corresponding to χ2/d.o.f. of the order of one. |
| first_indexed | 2024-12-17T00:32:24Z |
| format | Article |
| id | doaj.art-6a162055869a45808673791224916ff5 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T00:32:24Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-6a162055869a45808673791224916ff52022-12-21T22:10:14ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012020601210.1051/epjconf/201920206012epjconf_charm2018_06012Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapesBaru V.Filin A. A.0Hanhart C.1Nefediev A. V.Wang Q.2Wynen J.-L.3Ruhr University Bochum, Faculty of Physics and Astronomy, Institute for Theoretical Physics IIForschungszentrum Jülich, Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron PhysicsHelmholtz-Institut für Strahlen-und Kernphysik and Bethe Center for Theoretical Physics, Universität BonnForschungszentrum Jülich, Institute for Advanced Simulation, Institut für Kernphysik and Jülich Center for Hadron PhysicsThe experimental line shapes available in the BB¯$ \bar {B} $*, B*B¯$ \bar {B} $*, hb(1P)π and hb(2P)π channels are analysed using a theoretical EFT-based framework manifestly consistent with unitarity and analyticity. The line shapes are calculated using a system of coupled channel integral equations with the potential consisting of the one-pion and one-eta meson exchange interactions from the lightest Goldstone boson octet as well as of several contact terms at leading and subleading orders which are adjusted to minimise the overall chi squared. The pole positions of the Zb(10610) and Zb(10650) are extracted for the best fits corresponding to χ2/d.o.f. of the order of one.https://www.epj-conferences.org/articles/epjconf/pdf/2019/07/epjconf_charm2018_06012.pdf |
| spellingShingle | Baru V. Filin A. A. Hanhart C. Nefediev A. V. Wang Q. Wynen J.-L. Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes EPJ Web of Conferences |
| title | Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes |
| title_full | Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes |
| title_fullStr | Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes |
| title_full_unstemmed | Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes |
| title_short | Properties of Zb(10610) and Zb(10650) from an analysis of experimental line shapes |
| title_sort | properties of zb 10610 and zb 10650 from an analysis of experimental line shapes |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2019/07/epjconf_charm2018_06012.pdf |
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