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arXiv · hep-lat/9702007

Possible evidence for the mass shift of $η$' meson at finite temperature

Shinji Hioki
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Abstract

Topological charge distributions of SU(3) gauge theory at finite temperature are calculated on the lattice with high statistics in a manner of free from the uncertainty of $β$-function. Clear temperature dependence of the topological charge distribution is obtained. Combining the present result with the recent study about the relation between the masses of $η$ meson system and the gauge field topology, we obtain $m_{η'}(T)/m_{η'}(0) = 0.86 \pm 0.02$ and $0.69 \pm 0.01$ for $T=0.75 T_c$ and $T=0.93 T_c$, respectively. The result shows the first clear evidence of the mass shift of $η'$ meson at finite temperature.

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Shinji Hioki. 1997-02-07. Possible evidence for the mass shift of $η$' meson at finite temperature. https://arxiv.org/abs/hep-lat/9702007

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