$\psi(3686)$ 至 $J/\psi$ 直接双光子跃迁的证据
高能物理 - 实验
2012-11-02 v3 高能物理 - 唯象学
摘要
本文利用 BESIII 探测器收集的 1.06 亿个 衰变样本，研究了双光子跃迁 。利用 和 衰变，测得其分支比为 ，并在 90% 置信水平下估计其上限为 。本工作代表了对粲偶素态之间双光子跃迁的首次测量。本文还研究了该衰变中 衰变平面的取向以及 的极化。此外，还报告了级联 跃迁 的乘积分支比。
引用
@article{arxiv.1204.0246,
title = {Evidence for the Direct Two-Photon Transition from $\psi(3686)$ to $J/\psi$},
author = {BESIII Collaboration and M. Ablikim and M. N. Achasov and D. J. Ambrose and F. F. An and Q. An and Z. H. An and J. Z. Bai and R. B. Ferroli and Y. Ban and J. Becker and N. Berger and M. B. Bertani and J. M. Bian and E. Boger and O. Bondarenko and I. Boyko and R. A. Briere and V. Bytev and X. Cai and A. C. Calcaterra and G. F. Cao and J. F. Chang and G. Chelkov and G. Chen and H. S. Chen and J. C. Chen and M. L. Chen and S. J. Chen and Y. Chen and Y. B. Chen and H. P. Cheng and Y. P. Chu and D. Cronin-Hennessy and H. L. Dai and J. P. Dai and D. Dedovich and Z. Y. Deng and A. Denig and I. Denysenko and M. Destefanis and W. M. Ding and Y. Ding and L. Y. Dong and M. Y. Dong and S. X. Du and J. Fang and S. S. Fang and L. Fava and F. Feldbauer and C. Q. Feng and C. D. Fu and J. L. Fu and Y. Gao and C. Geng and K. Goetzen and W. X. Gong and W. Gradl and M. Greco and M. H. Gu and Y. T. Gu and Y. H. Guan and A. Q. Guo and L. B. Guo and Y. P. Guo and Y. L. Han and X. Q. Hao and F. A. Harris and K. L. He and M. He and Z. Y. He and T. Held and Y. K. Heng and Z. L. Hou and H. M. Hu and J. F. Hu and T. Hu and B. Huang and G. M. Huang and J. S. Huang and X. T. Huang and Y. P. Huang and T. Hussain and C. S. Ji and Q. Ji and X. B. Ji and X. L. Ji and L. K. Jia and L. L. Jiang and X. S. Jiang and J. B. Jiao and Z. Jiao and D. P. Jin and S. Jin and F. F. Jing and N. Kalantar-Nayestanaki and M. Kavatsyuk and W. Kuehn and W. Lai and J. S. Lange and J. K. C. Leung and C. H. Li and Cheng Li and Cui Li and D. M. Li and F. Li and G. Li and H. B. Li and J. C. Li and K. Li and Lei Li and N. B. Li and Q. J. Li and S. L. Li and W. D. Li and W. G. Li and X. L. Li and X. N. Li and X. Q. Li and X. R. Li and Z. B. Li and H. Liang and Y. F. Liang and Y. T. Liang and G. R. Liao and X. T. Liao and B. J. Liu and B. J. Liu and C. L. Liu and C. X. Liu and C. Y. Liu and F. H. Liu and Fang Liu and Feng Liu and H. Liu and H. B. Liu and H. H. Liu and H. M. Liu and H. W. Liu and J. P. Liu and Kun Liu and Kai Liu and K. Y. Liu and P. L. Liu and S. B. Liu and X. Liu and X. H. Liu and Y. B. Liu and Y. Liu and Z. A. Liu and Zhiqiang Liu and Zhiqing Liu and H. Loehner and G. R. Lu and H. J. Lu and J. G. Lu and Q. W. Lu and X. R. Lu and Y. P. Lu and C. L. Luo and M. X. Luo and T. Luo and X. L. Luo and M. Lv and C. L. Ma and F. C. Ma and H. L. Ma and Q. M. Ma and S. Ma and T. Ma and X. Y. Ma and Y. Ma and F. E. Maas and M. Maggiora and Q. A. Malik and H. Mao and Y. J. Mao and Z. P. Mao and J. G. Messchendorp and J. Min and T. J. Min and R. E. Mitchell and X. H. Mo and C. Morales Morales and C. Motzko and N. Yu. Muchnoi and Y. Nefedov and C. Nicholson and I. B. Nikolaev and Z. Ning and S. L. Olsen and Q. Ouyang and S. P. Pacetti and J. W. Park and M. Pelizaeus and K. Peters and J. L. Ping and R. G. Ping and R. Poling and E. Prencipe and C. S. J. Pun and M. Qi and S. Qian and C. F. Qiao and X. S. Qin and Y. Qin and Z. H. Qin and J. F. Qiu and K. H. Rashid and G. Rong and X. D. Ruan and A. Sarantsev and J. Schulze and M. Shao and C. P. Shen and X. Y. Shen and H. Y. Sheng and M. R. Shepherd and X. Y. Song and S. Spataro and B. Spruck and D. H. Sun and G. X. Sun and J. F. Sun and S. S. Sun and X. D. Sun and Y. J. Sun and Y. Z. Sun and Z. J. Sun and Z. T. Sun and C. J. Tang and X. Tang and E. H. Thorndike and H. L. Tian and D. Toth and M. U. Ulrich and G. S. Varner and B. Wang and B. Q. Wang and K. Wang and L. L. Wang and L. S. Wang and M. Wang and P. Wang and P. L. Wang and Q. Wang and Q. J. Wang and S. G. Wang and X. F. Wang and X. L. Wang and Y. D. Wang and Y. F. Wang and Y. Q. Wang and Z. Wang and Z. G. Wang and Z. Y. Wang and D. H. Wei and P. Weidenkaff and Q. G. Wen and S. P. Wen and M. W. Werner and U. Wiedner and L. H. Wu and N. Wu and S. X. Wu and W. Wu and Z. Wu and L. G. Xia and Z. J. Xiao and Y. G. Xie and Q. L. Xiu and G. F. Xu and G. M. Xu and H. Xu and Q. J. Xu and X. P. Xu and Y. Xu and Z. R. Xu and F. Xue and Z. Xue and L. Yan and W. B. Yan and Y. H. Yan and H. X. Yang and T. Yang and Y. Yang and Y. X. Yang and H. Ye and M. Ye and M. H. Ye and B. X. Yu and C. X. Yu and J. S. Yu and S. P. Yu and C. Z. Yuan and W. L. Yuan and Y. Yuan and A. A. Zafar and A. Z. Zallo and Y. Zeng and B. X. Zhang and B. Y. Zhang and C. C. Zhang and D. H. Zhang and H. H. Zhang and H. Y. Zhang and J. Zhang and J. G. Zhang and J. Q. Zhang and J. W. Zhang and J. Y. Zhang and J. Z. Zhang and L. Zhang and S. H. Zhang and T. R. Zhang and X. J. Zhang and X. Y. Zhang and Y. Zhang and Y. H. Zhang and Y. S. Zhang and Z. P. Zhang and Z. Y. Zhang and G. Zhao and H. S. Zhao and J. W. Zhao and K. X. Zhao and Lei Zhao and Ling Zhao and M. G. Zhao and Q. Zhao and S. J. Zhao and T. C. Zhao and X. H. Zhao and Y. B. Zhao and Z. G. Zhao and A. Zhemchugov and B. Zheng and J. P. Zheng and Y. H. Zheng and Z. P. Zheng and B. Zhong and J. Zhong and L. Zhou and X. K. Zhou and X. R. Zhou and C. Zhu and K. Zhu and K. J. Zhu and S. H. Zhu and X. L. Zhu and X. W. Zhu and Y. M. Zhu and Y. S. Zhu and Z. A. Zhu and J. Zhuang and B. S. Zou and J. H. Zou and J. X. Zuo},
journal= {arXiv preprint arXiv:1204.0246},
year = {2012}
}
备注
6 pages, 3 figures, 2 tables