Dynamically Generated Open and Hidden Charm Meson Systems

Details Dynamically Generated Open and Hidden Charm Meson Systems Dynamically Generated Open and Hidden Charm Meson Systems

2006-12-14

arxiv.org/abs/hep-ph/0612179v2

Phys.Rev.D76:074016,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

32 pages, 10 figures. Added extra calculations with explicit symmetry breaking terms in chiral Lagrangians

Scientific paper

10.1103/PhysRevD.76.074016

We will study open and hidden charm scalar meson resonances within two different models. The first one is a direct application of a chiral Lagrangian already used to study flavor symmetry breaking in Skyrme models. In another approach to the problem a SU(4) symmetric Lagrangian is built and the symmetry is broken down to SU(3) by identifying currents where heavy mesons are exchanged and suppressing those. Unitarization in couple channels leads to dynamical generation of resonances in both models, in particular a new hidden charm resonance with mass 3.7 GeV is predicted. The small differences between these models and with previous works will be discussed.

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