高激发态介子的宇称加倍
Parity doubling of highly excited mesons
摘要：
格洛兹曼提出，高激发态的介子和重子会落入宇称二重态，并且在领先的雷奇轨道上的f4（2050）应该有一个接近简并的J^{PC} = 4^{-+}伙伴。对Crystal Barrel数据的重新分析并不支持这一观点。一个可能的解释是，领先轨道上的离心势垒允许形成L=J-1态，但太强而不允许L=J态。两个新的极化实验有可能在介子光谱学方面取得重大进展。
英文摘要：
Glozman has proposed that highly excited mesons and baryons fall into parity doublets, and that the f4(2050) on the leading Regge trajectory should have a nearly degenerate J^{PC} = 4^{-+} partner. A re-analysis of Crystal Barrel data does not support this idea. A likely explanation is that centrifugal barriers on the leading trajectory allow formation of the L=J-1 states, but are too strong to allow L=J states. Two new polarisation experiments have the potential for major progress in meson spectroscopy.
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