弦模型图像下的重味强子谱:短程束缚

Heavy flavor hadron spectrum in string model picture: short-range binding

对单重味强子质量中短程束缚的起源进行了研究.结果表明,在单重味强子Regge公式中加入与约化质量成正比的束缚能之后,可以对实验上已有的单重强子质量进行普适的描述,且可以预言实验上没有探测到的单重强子质量.此外,本文证实单重强子(包括奇异味强子)束缚能与夸克间短程色库仑吸引力有关.

This paper explores the origin of extra heavy flavor binding in heavy flavor hadron spectrum.The results show that in the Regge formula of singly heavy hadron adding of one extra heavy flavor binding that is proportional to the reduced mass enables one to unifiedly describe to masses of the existing single heavy hadrons,and the formula can predicts some of singly heavy baryons that were not established experimentally.In addition,this work quantitatively confirm that such an extra binding energy between heavy flavors(including strange flavor) is related to the short-range colour Coulomb attraction between quarks.