The Roper resonance N(1440) has been a mysterious state in hadron physics for almost 60 years because of its incompatibility with the conventional quark model. In recent years, the candidates of Roper-like state in heavy baryon sectors, e.g., \(\Lambda _c(2765)\) and \(\Lambda _b(6072)\), have been observed in experiments although their spin and parity are not directly measured. Interestingly, they share not only similar excitation energies but also decay properties, that may provide a new aspect of the Roper resonance. In this work, we focus on investigating the decay properties of Roper-like heavy baryons. In particular, we show how their two-pion emission decay can be helpful to determine their spin and parity. The experimental confirmation is required to further establish the existence of the Roper-like states. Such measurements can be principally done in the current experimental facilities such as LHC and B-factory experiments.

近 60 年来，罗珀共振N（1440）一直是强子物理学中的一个神秘状态，因为它与传统的夸克模型不兼容。近年来，重重子扇区中类Roper态的候选者，例如\(\Lambda _c(2765)\)和\(\Lambda _b(6072)\), 已经在实验中观察到，尽管它们的自旋和奇偶性没有直接测量。有趣的是，它们不仅具有相似的激发能，而且还具有衰变特性，这可能为罗珀共振提供了一个新的方面。在这项工作中，我们专注于研究类似 Roper 的重重子的衰变特性。特别是，我们展示了它们的双介子发射衰减如何有助于确定它们的自旋和奇偶校验。需要实验确认以进一步确定类 Roper 状态的存在。此类测量主要可以在当前的实验设施中完成，例如 LHC 和 B 工厂实验。