标题： 暗物质是否由新稳定族夸克的重子组成？ 显示英文标题

标题： Does dark matter consist of baryons of new stable family quarks?

摘要： 我们研究了暗物质由重味族夸克和轻子组成的团簇的可能性，这些粒子与轻子族之间没有 Yukawa 耦合。 这种族系被统一自旋和电荷的方法预测为第五族。 我们对这个新族成员的重子性质进行了粗略估算，并通过研究第五族团簇的宇宙学演化，探讨了直接实验证据和宇宙学证据对该族性质可能施加的限制。 显示英文摘要

摘要： We investigate the possibility that the dark matter consists of clusters of the heavy family quarks and leptons with zero Yukawa couplings to the lower families. Such a family is predicted by the approach unifying spins and charges as the fifth family. We make a rough estimation of properties of baryons of this new family members and study possible limitations on the family properties due to the direct experimental and the cosmological evidences, studying the cosmological evolution of the fifth family clusters.