用 SND 探测器测量中子类时电磁形状因子
高能物理 - 实验
2023-09-12 v1
摘要
本文给出 截面与有效中子类时形状因子的测量结果。数据采集于 2020—2021 年在 VEPP-2000 对撞机上完成，质心能量范围为 1891 至 2007 MeV。采用通用型非磁探测器 SND 来探测中子-反中子事件。事件筛选通过飞行时间技术实现。测得截面为 0.4—0.6 nb。所研究能量范围内的中子形状因子由 0.3 变至 0.2。
引用
@article{arxiv.2309.05241,
title = {Measurement of the neutron timelike electromagnetic form factor with the SND detector},
author = {SND Collaboration and M. N. Achasov and A. Yu. Barnyakov and E. V. Bedarev and K. I. Beloborodov and A. V. Berdyugin and D. E. Berkaev and A. G. Bogdanchikov and A. A. Botov and T. V. Dimova and V. P. Druzhinin and V. N. Zhabin and Yu. M. Zharinov and E. V. Kardapoltsev and A. S. Kasaev and D. P. Kovrizhin and I. A. Koop and A. A. Korol and A. S. Kupich and A. P. Kryukov and A. P. Lysenko and N. A. Melnikova and N. Yu. Muchnoy and A. E. Obrazovsky and E. V. Pakhtusova and K. V. Pugachev and S. A. Rastigeev and Yu. A. Rogovsky and S. I. Serednyakov and Z. K. Silagadze and I. K. Surin and Yu. V. Usov and A. G. Kharlamov and Yu. M. Shatunov and D. A. Shtol},
journal= {arXiv preprint arXiv:2309.05241},
year = {2023}
}
备注
13 pages, 8 figures