罗盘极化目标的未来规划

Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017) Pub Date : 2018-05-31 DOI:10.22323/1.324.0004

G. Reicherz, N. Doshita, M. Finger, T. Iwata, Y. Kiselev, J. Koivuniemi, K. Kondo, G. Nukazuka, J. Matoušek, W. Meyer, M. Pešek

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摘要

COMPASS合作项目在2015年进行了极化Drell-Yan程序来测量TMD(横向动量依赖)和pdf (Parton分布函数)。我们将在2018年再实施一年，以改善统计数据。在Drell-Yan计划中，一个强度为$10^8$ /s的190 GeV/c负介子束将被散射到一个长度为110 cm的横向极化质子靶上。我们还计划在CERN加速器长期关闭后，于2021年将横向极化氘核目标用于具有介子束的SIDIS(半包含深度非弹性散射)计划。我们将为2018年的运行展示改进的COMPASS PT系统，并在2021年提出氘核目标的未来计划。

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Future plannings for the COMPASS polarized target

The COMPASS collaboration performed a polarized Drell-Yan program to measure TMD (Transverse Momentum Dependent) and PDFs (Parton Distribution Functions) in 2015. We will carry out the program for one more year in 2018 to improve the statistics. In the Drell-Yan program a negative pion beam of 190 GeV/c with an intensity of $10^8$ /s will be scattered on a transversely polarized proton target with a length of 110 cm. We also plan to use a transversely polarized deuteron target for SIDIS (Semi-Inclusive-Deep-Inelastic-Scattering) program with muon beam in 2021 just after a long shut down of the CERN accelerators. We will present the improved COMPASS PT system for the 2018 run and present the future plan of the deuteron target in 2021.

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Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017)

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