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Indications for the Existence of Chiral Particles: the Axial-Vector D1 and the Scalar B0
Author(s) -
Daichi Ito,
Muneyuki Ishida,
S. Ishida,
Toshihiko Komada,
Tomohito Maeda,
Hideyuki Tonooka,
Kenji Yamada,
I. Yamauchi
Publication year - 2002
Publication title -
progress of theoretical physics
Language(s) - English
Resource type - Journals
eISSN - 1347-4081
pISSN - 0033-068X
DOI - 10.1143/ptp.108.953
Subject(s) - physics , meson , scalar (mathematics) , particle physics , covariant transformation , hadron , scalar meson , quark model , quark , pseudovector , chiral symmetry , pseudoscalar , spectral line , chiral symmetry breaking , mathematical physics , quantum mechanics , quarkonium , geometry , mathematics
In a covariant level-classification scheme of hadrons proposed recently, the existence of “chiral particles”, scalar and axial-vector mesons as the partners of the ground-state pseudo-scalar and vector mesons, respectively, were predicted in D and B meson systems, realizing a linear representation of chiral symmetry concerning the light quark. In this work we reanalyze the D^*π mass spectra obtained through Υ(4S) and Z^0 decay and the Bπ spectra obtained through Z^0 decay to show the possibility of the existence of D_1^χ and B_0^χ, respectively.

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