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SU(3) constraints on cryptoexotic pentaquarks
Author(s) -
Praszałowicz M.
Publication year - 2004
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.200410113
Subject(s) - parton , universality (dynamical systems) , physics , twist , particle physics , fragmentation (computing) , scattering , statistical physics , quantum chromodynamics , quantum mechanics , mathematics , computer science , geometry , operating system
We examine SU(3) constraints on the spectrum and decay widths of cryptoexotic nucleon‐like states in antidecuplet of pentaquarks. We show that in the ideal mixing scenario the number of free matrix elements describing splittings reduces from 4 to 2. Model‐independent sum rules are derived. Using as input Θ + and Ξ 3/2 masses we show that it is difficult to interpret Roper and N *(1710) nucleon resonances as cryptoexotic pentaquarks. Large N c limit for antidecuplet and accompanying octet in the diqaurk picture and the analogy with the soliton model is also discussed.