TY - JOUR
T1 - O(α s/ 5m) quarkonium 1S spectrum in large-β 0 approximation and renormalon cancellation
AU - Kiyo, Y.
AU - Sumino, Y.
N1 - Funding Information:
Y.K. was supported by the Japan Society for the Promotion of Science. Y.S. was supported in part by the Japan–German Cooperative Science Promotion Program.
PY - 2000/12/21
Y1 - 2000/12/21
N2 - Presently the quarkonium spectrum, written in terms of the quark MS-Mass, is known at O(α S/ 3m) accuracy. We point out that in order to achieve O(α S/ 4m) accuracy it is sufficient to calculate further (I) the O(α S/ 4m) relation between the MS-Mass and the pole-Mass, and (II) the binding energy at O(α S/ 5m) in the large-β 0 approximation. We calculate the latter correction analytically for the 1 S-State and study its phenomenological implications.
AB - Presently the quarkonium spectrum, written in terms of the quark MS-Mass, is known at O(α S/ 3m) accuracy. We point out that in order to achieve O(α S/ 4m) accuracy it is sufficient to calculate further (I) the O(α S/ 4m) relation between the MS-Mass and the pole-Mass, and (II) the binding energy at O(α S/ 5m) in the large-β 0 approximation. We calculate the latter correction analytically for the 1 S-State and study its phenomenological implications.
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U2 - 10.1016/S0370-2693(00)01282-X
DO - 10.1016/S0370-2693(00)01282-X
M3 - Article
AN - SCOPUS:0034700528
SN - 0370-2693
VL - 496
SP - 83
EP - 88
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -