000330333 001__ 330333 000330333 005__ 20211110142839.0 000330333 020__ $$a978-3-945931-07-3 000330333 020__ $$a978-3-945931-07-3 000330333 0247_ $$2datacite_doi$$a10.3204/DESY-PROC-2016-04/Ali 000330333 0247_ $$2ISSN$$a1435-8077 000330333 037__ $$aPUBDB-2017-06832 000330333 041__ $$aEnglish 000330333 0881_ $$aDESY-PROC-2016-04 000330333 088__ $$2DESY$$aDESY-PROC-2016-04 000330333 1001_ $$0P:(DE-H253)PIP1003110$$aAli, Ahmed$$b0$$eCorresponding author$$udesy 000330333 1112_ $$0C16-07-18.8$$2inspire$$aQuantum Field Theory at the Limits$$cDubna$$d2016-07-18 - 2016-07-30$$gHQ 2016$$wRussia 000330333 245__ $$aMultiquark Hadrons - Current Status and Issues 000330333 260__ $$aHamburg$$bVerlag Deutsches Elektronen-Synchrotron$$c2017 000330333 29510 $$aAli, Ahmed "Multiquark Hadrons - Current Status and Issues" in Proceedings of the Helmholtz International Summer School 2016 (HQ 2016) : Quantum Field Theory at the Limits : from Strong Fields to Heavy Quarks / Ali, Ahmed, Blaschke, David, Issadykov, Aidos, Ivanov, Mikhail (eds.), Verlag Deutsches Elektronen-Synchrotron : 2017 ; HQ 2016 : Helmholtz International Summer School 2016, 2016-07-18 - 2016-07-30, Dubna 000330333 300__ $$a208-238 000330333 3367_ $$2ORCID$$aCONFERENCE_PAPER 000330333 3367_ $$033$$2EndNote$$aConference Paper 000330333 3367_ $$2BibTeX$$aINPROCEEDINGS 000330333 3367_ $$2DRIVER$$aconferenceObject 000330333 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport 000330333 3367_ $$2DataCite$$aOutput Types/Conference Paper 000330333 3367_ $$0PUB:(DE-HGF)8$$2PUB:(DE-HGF)$$aContribution to a conference proceedings$$bcontrib$$mcontrib$$s1499949957_11760 000330333 3367_ $$0PUB:(DE-HGF)7$$2PUB:(DE-HGF)$$aContribution to a book$$mcontb 000330333 4900_ $$0PERI:(DE-600)2450075-6$$aDESY-PROC 000330333 520__ $$aMultiquark states having four and five valence quarks, called tetraquarks and pentaquarks, respectively, are now firmly established experimentally, with the number of such independent states increasing steadily over the years. They represent a new facet of QCD, but the underlying dynamics is currently poorly understood. I review some selected aspects of data and discuss several competing phenomenological models put forward to accommodate them. 000330333 536__ $$0G:(DE-HGF)POF3-611$$a611 - Fundamental Particles and Forces (POF3-611)$$cPOF3-611$$fPOF III$$x0 000330333 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000330333 7870_ $$0PUBDB-2017-01598$$aAli, Ahmed et. al.$$dVerlag Deutsches Elektronen-Synchrotron$$iisPartOf$$rDESY-PROC-2016-04$$tProceedings of the Helmholtz International Summer School 2016 (HQ 2016) : Quantum Field Theory at the Limits : from Strong Fields to Heavy Quarks 000330333 8564_ $$uhttps://bib-pubdb1.desy.de/record/330333/files/fulltext.pdf$$yOpenAccess 000330333 909CO $$ooai:bib-pubdb1.desy.de:330333$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire 000330333 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1003110$$aDeutsches Elektronen-Synchrotron$$b0$$kDESY 000330333 9131_ $$0G:(DE-HGF)POF3-611$$1G:(DE-HGF)POF3-610$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Universum$$vFundamental Particles and Forces$$x0 000330333 9141_ $$y2017 000330333 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000330333 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 000330333 9201_ $$0I:(DE-H253)T-20120731$$kT$$lTheorie-Gruppe$$x0 000330333 980__ $$acontrib 000330333 980__ $$aVDB 000330333 980__ $$aUNRESTRICTED 000330333 980__ $$areport 000330333 980__ $$acontb 000330333 980__ $$aI:(DE-H253)T-20120731 000330333 9801_ $$aFullTexts