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Published version

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1997

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/12459

More nonperturbative corrections to the fine and hyperfine splitting in the heavy quarkorium

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http://dx.doi.org/10.1103/PhysRevD.55.407

Abstract

Leading nonperturbative effects to fine and hyperfine splittings were calculated some time ago. Recently, they have been used in order to obtain realistic numerical results for the lower levels in bottomonium systems. We point out that a contribution of the same order O ( Λ 4 QCD / m 3 α 2 s ) has been overlooked. We calculate it in this paper.

Subject

Partícules (Física nuclear)

Subject (English)

Particles (Nuclear physics)

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

PINEDA, Antonio (Pineda Ruiz). More nonperturbative corrections to the fine and hyperfine splitting in the heavy quarkorium. Physical Review D. 1997. Vol. 55, num. 1, pags. 407-410. ISSN 0556-2821. [consulted: 12 of June of 2026]. Available at: https://hdl.handle.net/2445/12459

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