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Baryon resonances from chiral coupled-channel dynamics
Názov Baryon resonances from chiral coupled-channel dynamics Aut.údaje Matthias F. M. Lutz, Evgeni E. Kolomeitsev Autor Lutz Matthias F. M. (50%)
Spoluautori Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Akcia International Conference on Structure of Baryons . medzinárodná konferencia , 10. , Palaiseau , 25.-29.10.2004 Zdroj.dok. Nuclear Physics A. Vol. 755 (2005), pp. 29C-39C. - Amsterdam : Elsevier B.V., 2005 Kľúč.slová atómová fyzika Narrow Baryon Resonances chiral dynamics Jazyk dok. angličtina Krajina Holandsko Systematika 539.1 Anotácia We discuss the formation of s- and d-wave baryon resonances as predicted by the chiral SU(3) symmetry of QCD. Based on the leading order term of the chiral Lagrangian a rich spectrum of molecules is generated, owing to final-state interactions. The spectrum of s- and d-wave baryon states with zero and non-zero charm is remarkably consistent with the empirical pattern. In particular, the recently announced Σc(2800) of the BELLE collaboration is reproduced with realistic mass and width parameters. Similarly, the dwave states Λc(2625) and Ξc(2815) are explained naturally as chiral excitations of JP = 3 2 + states. In the open-charm sector exotic multiplet structures are predicted. These findings support a radical conjecture: meson and baryon resonances that do not belong to the large-Nc ground state of QCD should be viewed as hadronic molecular states Kategória publikačnej činnosti ADC Číslo archívnej kópie 26410 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika 
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Počet záznamov: 1