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Newly observed D(2550), D(2610), and D(2760) as 2S and 1D charmed mesons · Around

2010

Newly observed D(2550), D(2610), and D(2760) as 2S and 1D charmed mesons

Sun, Zhi-Feng, Yu, Jie-Sheng, Liu, Xiang et al.

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We study three newly observed D(2550), D(2610), and D(2760) by the BaBar Collaboration utilizing the mass spectra and investigating the strong decays.

Our calculation indicates that D(2610) is an admixture of $2^3S_1$ and $1^3D_1$ with $J^P=1^-$.
$D(2760)$ can be explained as either the orthogonal partner of D(2610) or $1^3D_3$.
Our estimate of the decay width for $D(2550)$, assuming it as $2^1S_0$, is far below the experimental value.

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