Report/Contribution to a conference proceedings/Contribution to a book

PUBDB-2017-06838

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The interference effects of multi-channel pion-pion scattering in final states of charmonia and bottomonia decays

Surovtsev, Y. S. ; Bydzovsky, P. ; Gutsche, T. ; Kaminski, R. ; Lyubovitskij, V. E. ; Nagy, M.

2017
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 978-3-945931-07-3, 978-3-945931-07-3

This record in other databases:

Please use a persistent id in citations: doi:10.3204/DESY-PROC-2016-04/Surovtsev

Report No.: DESY-PROC-2016-04

Abstract: There is presented a unified analysis of all available data on the decays $\Upsilon(mS)\to\Upsilon(nS)\pi\pi$ ($m>n$, $m=2,3,4,5,$ $n=1,2,3$), $J/\psi\to\phi(\pi\pi, K\overline{K})$, and $\psi(2S)\to J/\psi\pi\pi$ and the data on isoscalar $S$-wave processes $\pi\pi\to\pi\pi,K\overline{K},\eta\eta$. The multi-channel $\pi\pi$ scattering is described in our model-independent approach based on analyticity and unitarity and using an uniformization procedure. It is shown that the basic shape of dipion mass distributions in the two-pion transitions of both charmonia and bottomonia states are explained by an unified mechanism based on the contribution of the $\pi\pi$, $K\overline{K}$ and $\eta\eta$ coupled channels including their interference.

---

Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2017

---

Database coverage:
;

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Report Ali, A. (Editor)DESY* ; Blaschke, D. (Editor) ; Issadykov, A. (Editor) ; Ivanov, M. (Editor)
Proceedings of the Helmholtz International Summer School 2016 (HQ 2016) : Quantum Field Theory at the Limits : from Strong Fields to Heavy Quarks
2017Helmholtz International Summer School 2016, HQ 2016, DubnaDubna, Russia, 18 Jul 2016 - 30 Jul 20162016-07-182016-07-30 Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC (2017) [10.3204/DESY-PROC-2016-04]2017     Files BibTeX | EndNote: XML, Text | RIS

---