Abstract

Possible approaches to experimentally detecting P-parity violation in polarized proton or deuteron interactions with an unpolarized target are discussed. Within the first approach, a polarized proton or deuteron beam is scattered on a thick internal target deployed in one of rings of the NICA collider, and the spin state of the circulating beam is transformed to the mode of precession in the horizontal plane using an RF spin flipper. In this case, parity-violating effects can be probed by measuring the correlation between the interaction cross section and the particle spin direction. In an alternative experimental approach, beam-particle spins are rotated into the horizontal plane using a spin flipper, and then the beam is extracted to a beamline at a definite stage of spin precession. In this experimental scheme, which can be viewed as more traditional, one then collides the extracted beam with a dense external target and compares the measured cross sections for particles with opposite helicities passing through the target.

中文翻译：

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在NICA加速器设施中探测核碰撞中的P-奇偶校验违规的策略

摘要

实验检测P的可能方法讨论了极化质子或氘核与非极化目标相互作用中的奇偶校验违规。在第一种方法中，极化的质子或氘核束散射在NICA对撞机的一个环中部署的厚内部目标上，并且使用RF将循环束的自旋状态转换为水平面的进动模式旋转鳍状肢。在这种情况下，可以通过测量相互作用截面和粒子自旋方向之间的相关性来探究奇偶校验效应。在另一种实验方法中，使用自旋翻转器将束粒子自旋旋转到水平面，然后在自旋进动的确定阶段将光束提取到束线。在这个实验方案中，可以将其视为更传统的方案，