Can Eta mesons have a magnetic moment ?
Abstract
The response of pseudoscalar and vector mesons to strong magnetic fields is studied within a simple constituent quark model using analogy with bound states of Positronium. Magnetic moments of charged vector mesons K*, D*, B* are predicted and it is found that Eta mesons have magnetic polarizability. In extremely strong magnetic fields, behaviour of J/Psi mesons is discussed. We speculate on the existence of an induced magnetic moment of Eta meson.
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