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

PUBDB-2017-06834

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png XYZ mesons and Glueballs: effects of the quark-gluon mixing

Kochelev, N. (Corresponding author)

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

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

Report No.: DESY-PROC-2016-04

Abstract: We present the new developments in the physics of XYZ mesons and glueballs and discuss the connection between properties of the $XYZ$ mesons and glueballs, and the structure of the QCD vacuum. It is shown that the mixing between quark and gluon degree of freedoms induced by the nontrivial topological structure of the QCD vacuum might affect strongly the properties of the exotic hadrons. A new interpretation of the $XYZ$ mesons as the mixing between radial excitations of light quark-antiquark systems and states with heavy quark content is suggested. We introduce also a new mechanism of quarkonia production in hadron-hadron collisions coming from the mixing of light and heavy quark sectors of QCD. This mechanism is based on the nontrivial topological structure of the QCD vacuum and might explain the polarization puzzle in inclusive $J/\Psi$ production in high energy reactions. The possibility of big changes of the scalar and pseudoscalar glueball masses in the hot gluonic plasma is established and their consequences in the phase structure of QCD analyzed.

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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

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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

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