A Fit of Upsilon and Charmonium Spectra
A Fit of Upsilon and Charmonium Spectra
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DOI：
10.1016/0370-2693(80)90527-4
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发表时间：
1980-06
影响因子：
4.4
通讯作者：
Alain J. Martin
中科院分区：
文献类型：
--
作者：
Alain J. Martin
我们发现，updates和charmonium光谱可以拟合的形式为A+Brα，与α接近0.1的共同的潜力。特别地，γ射线和γ射线的质量差在10 MeV内再现。用这种方法证实了对于bb型和cc型体系，势的相关部分是与香味无关的，并且是近似对数的，但不是精确对数的。与此同时，通过比较粲偶素谱和uppermium谱，可以证明势能的短程部分与QCD的预言一致的说法，也受到了严重的怀疑。
We show that upsilon and charmonium spectra can be fitted by a common potential of the form A+Brα, with α close to 0.1. In particular the mass difference of γ‴ and γ is reproduced within 10 MeV. In this way it is confirmed that for the bb̄ and cc̄ systems the relevant partof the potential is flavour-independent and approximately though not exactly logarithmic. At the same time the claims, according to which the short-distance part of the potential could be shown to agree with the predictions of QCD by a comparison of charmonium and upsilon spectra, are put in serious doubt.