出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present the first lattice results of the spectrum of exotic vector mesons extracted from the
molecular and diquark-antidiquark operators, with quark fields (cq¯c ¯q), and (cs¯c ¯q)=(cq¯c¯s) respectively,
in lattice QCD with exact chiral symmetry. Our results suggest that X(3872) and
Y(4260) are in the spectrum of QCD, with JPC = 1++ and 1¡¡ respectively. Moreover, we obtain
the spectrum of heavier exotic mesons with (cs¯c ¯u)=(cu¯c¯s), (cs¯c¯d)=(cd¯c¯s), (cs¯c¯s), and (cc¯c¯c), as
the first theoretical predictions from lattice QCD.
