Jenkins Elizabeth, Manohar Aneesh V
Department of Physics, University of California at San Diego, La Jolla, California 92093, USA.
Phys Rev Lett. 2004 Jul 9;93(2):022001. doi: 10.1103/PhysRevLett.93.022001. Epub 2004 Jul 6.
We derive the quantum numbers of baryon exotics in the quark model and the Skyrme model and show that they agree for arbitrary colors and flavors. We define exoticness E, which can be used to classify the states. The exotic baryons include the recently discovered qqqqq pentaquarks (E=1), as well as exotic baryons with additional qq pairs (E>/=1). The mass formula for nonexotic and exotic baryons is given as an expansion in 1/N(c) and allows one to relate the moment of inertia of the Skyrme soliton to the mass of a constituent quark.
我们在夸克模型和斯凯姆模型中推导了重子奇异态的量子数，并表明对于任意颜色和味，它们是一致的。我们定义了奇异度(E)，它可用于对态进行分类。奇异重子包括最近发现的五夸克态(qqqqq)（(E = 1)），以及带有额外(qq)对的奇异重子（(E\geq1)）。非奇异和奇异重子的质量公式以(1/N_c)展开给出，并且能让人们将斯凯姆孤子的转动惯量与一个组分夸克的质量联系起来。
