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arXiv · 0706.0942

Puzzles of excited charm meson masses

B. Ananthanarayan·Sunanda Banerjee·K. Shivaraj·A. Upadhyay
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Abstract

We attempt a comprehensive analysis of the low lying charm meson states which present several puzzles, including the poor determination of masses of several non-strange excited mesons. We use the well-determined masses of the ground states and the strange first excited states to `predict' the mass of the non-strange first excited state in the framework of heavy hadron chiral perturbation theory, an approach that is complementary to the well-known analysis of Mehen and Springer. This approach points to values for the masses of these states that are smaller than the experimental determinations. We provide a critical assessment of these mass measurements and point out the need for new experimental information.

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B. Ananthanarayan, Sunanda Banerjee, K. Shivaraj, A. Upadhyay. 2007-06-07. Puzzles of excited charm meson masses. https://doi.org/10.1016/j.physletb.2007.06.013

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