标题： 桶摇动停止了质子加速器中的束团振荡 显示英文标题

标题： Bucket Shaking Stops Bunch Oscillations In The Tevatron

摘要： 在质子对撞机中的束团已知会表现出持续无限的纵向振荡。 这些振荡被非正式地称为“舞蹈束团”。 尽管舞蹈束团在注入时不会导致单个束团发射度增长或束流损失，但会导致碰撞时的束团变长。 在运行中，已经建造了一个纵向阻尼器，可以阻止这种舞蹈并阻尼耦合束团模式。 最近的理论工作预测，通过适当改变束团分布也可以停止这种舞蹈。 本文展示了支持该理论的质子对撞机实验。 显示英文摘要

摘要： Bunches in the Tevatron are known to exhibit longitudinal oscillations which persist indefinitely. These oscillations are colloquially called "dancing bunches". Although the dancing bunches do not cause single bunch emittance growth or beam loss at injection, it leads to bunch lengthening at collisions. In operations, a longitudinal damper has been built which stops this dance and damps out coupled bunch modes. Recent theoretical work predicts that the dance can also be stopped by an appropriate change in the bunch distribution. This paper shows the Tevatron experiments which support this theory.