CONFORMAL-INVARIANCE AND DEGREES OF FREEDOM IN THE QCD STRING

被引:23
作者
DIENES, KR
CUDELL, JR
机构
[1] Department of Physics, McGill University, Montreal, Que. H3A-2T8
关键词
D O I
10.1103/PhysRevLett.72.187
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We demonstrate that the Hagedorn-type growth of the number of observed meson states can be used to constrain the degrees of freedom of the underlying effective QCD string. We find that the temperature relevant for such string theories is not given by the usual Hagedorn value T(H) almost-equal-to 160 MeV, but is considerably higher. This resolves an apparent conflict with the results from a static quark-potential analysis, and suggests that conformal invariance and modular invariance are indeed reflected in the hadronic spectrum. We also find that the D(perpendicular-to) = 2 scalar string is in excellent agreement with data.
引用
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页码:187 / 190
页数:4
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