利用CMD-3探测器研究质心能量920–1060 MeV范围内过程$e^+e^-\to \pi^+\pi^-\pi^+\pi^-$
高能物理 - 实验
2017-03-22 v2
摘要
利用CMD-3探测器在质心能量920–1060 MeV范围内收集的积分亮度为9.8 pb的数据样本中679893个信号事例，测量了过程的截面。测得的截面显示出衰变与非共振过程的干涉图样，由此我们得到了双重压低衰变（由G宇称和OZI规则压低）的分支比：。
引用
@article{arxiv.1612.04483,
title = {Study of the Process $e^+e^-\to \pi^+\pi^-\pi^+\pi^-$ IN THE C.M. Energy Range 920--1060 MeV with the CMD-3 Detector},
author = {R. R. Akhmetshin and A. N. Amirkhanov and A. V. Anisenkov and V. M. Aulchenko and V. Sh. Banzarov and N. S. Bashtovoy and D. E. Berkaev and A. E. Bondar and A. V. Bragin and S. I. Eidelman and D. A. Epifanov and L. B. Epshteyn and A. L. Erofeev and G. V. Fedotovich and S. E. Gayazov and A. A. Grebenuk and S. S. Gribanov and D. N. Grigoriev and F. V. Ignatov and V. L. Ivanov and S. V. Karpov and A. S. Kasaev and V. F. Kazanin and I. A. Koop and O. A. Kovalenko and A. A. Korobov and A. N. Kozyrev and E. A. Kozyrev and P. P. Krokovny and A. E. Kuzmenko and A. S. Kuzmin and I. B. Logashenko and A. P. Lysenko and P. A. Lukin and K. Yu. Mikhailov and V. S. Okhapkin and Yu. N. Pestov and E. A. Perevedentsev and A. S. Popov and G. P. Razuvaev and Yu. A. Rogovsky and A. A. Ruban and N. M. Ryskulov and A. E. Ryzhenenkov and V. E. Shebalin and D. N. Shemyakin and B. A. Shwartz and D. B. Shwartz and A. L. Sibidanov and Yu. M. Shatunov and E. P. Solodov and V. M. Titov and A. A. Talyshev and A. I. Vorobiov and Yu. V. Yudin},
journal= {arXiv preprint arXiv:1612.04483},
year = {2017}
}
备注
16 pages, 6 figures