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Fine-structure splittings of excited P-and D-wave states in charmonium (2000)

Badalian, A. M. ; Morgunov, V. L. ; Bakker, B. L. G.

Springer

Physics of atomic nuclei 63 (2000), S. 1635-1639

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ISSN: 1063-7788

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract It is shown that, in the relativistic case, the fine-structure splittings of the excited 23 P J and 33 P J states in charmonium are as large as those of the 13 P J state if the same value of αs(μ)≈0.36 is used. The predicted mass of M(23 P 0)=3.84 GeV appears to be 120 MeV lower than the center of gravity of the 23 P J multiplet and lies below the D $$\bar D$$ * threshold. Our value of M(23 P 0) is nearly 80 MeV lower than that from the Godfrey and Isgur article [Phys. Rev. D 32, 189 (1985)], while the differences in other masses are not greater than 20 MeV.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1134/1.1312898

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