在 $\Upsilon(5S)$ 共振态下使用新标记法测量 CP 破坏参数 $\sin 2\phi_1$
高能物理 - 实验
2015-06-03 v3
摘要
我们报告了在 共振态下使用一种称为“- 标记”的新标记法对 CP 破坏参数 的测量。在包含一个中性 介子、一个带电 介子和一个带电 介子的 衰变中，中性 介子通过 CP 本征态衰变道重建。在 衰变时刻，中性 介子的初态味与带电 介子相反，因此无需重建带电 介子即可从 介子的电荷推断出来。通过 - 和 - 标记的 产额之间的不对称性，我们确定 。该结果基于 KEKB 对撞机上 Belle 探测器记录的 121 fb 数据。
引用
@article{arxiv.1201.3502,
title = {Measurement of the CP-violation Parameter sin2$\phi_1$ with a New Tagging Method at the $\Upsilon(5S)$ Resonance},
author = {Belle Collaboration and Y. Sato and H. Yamamoto and H. Aihara and D. M. Asner and V. Aulchenko and T. Aushev and T. Aziz and A. M. Bakich and V. Bhardwaj and B. Bhuyan and M. Bischofberger and A. Bondar and A. Bozek and M. Bračko and T. E. Browder and P. Chang and P. Chen and B. G. Cheon and K. Chilikin and R. Chistov and I. -S. Cho and K. Cho and S. -K. Choi and Y. Choi and J. Dalseno and Z. Doležal and Z. Drásal and S. Eidelman and D. Epifanov and J. E. Fast and V. Gaur and N. Gabyshev and Y. M. Goh and B. Golob and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and W. -S. Hou and H. J. Hyun and A. Ishikawa and R. Itoh and M. Iwabuchi and Y. Iwasaki and T. Iwashita and T. Julius and P. Kapusta and T. Kawasaki and H. Kichimi and C. Kiesling and H. J. Kim and H. O. Kim and J. B. Kim and J. H. Kim and K. T. Kim and M. J. Kim and S. K. Kim and Y. J. Kim and K. Kinoshita and B. R. Ko and N. Kobayashi and P. Kodyš and S. Korpar and P. Križan and P. Krokovny and T. Kuhr and R. Kumar and T. Kumita and A. Kuzmin and Y. -J. Kwon and J. S. Lange and S. -H. Lee and J. Li and Y. Li and C. Liu and Z. Q. Liu and R. Louvot and S. McOnie and K. Miyabayashi and H. Miyata and R. Mizuk and G. B. Mohanty and A. Moll and N. Muramatsu and E. Nakano and M. Nakao and H. Nakazawa and Z. Natkaniec and S. Nishida and K. Nishimura and O. Nitoh and S. Ogawa and T. Ohshima and S. Okuno and S. L. Olsen and Y. Onuki and W. Ostrowicz and P. Pakhlov and G. Pakhlova and C. W. Park and H. Park and H. K. Park and T. K. Pedlar and M. Petrič and L. E. Piilonen and A. Poluektov and M. Röhrken and S. Ryu and H. Sahoo and Y. Sakai and T. Sanuki and O. Schneider and C. Schwanda and A. J. Schwartz and R. Seidl and K. Senyo and O. Seon and M. E. Sevior and M. Shapkin and C. P. Shen and T. -A. Shibata and J. -G. Shiu and B. Shwartz and A. Sibidanov and F. Simon and P. Smerkol and Y. -S. Sohn and A. Sokolov and E. Solovieva and S. Stanič and M. Starič and J. Stypula and M. Sumihama and T. Sumiyoshi and S. Tanaka and G. Tatishvili and Y. Teramoto and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and S. Uno and P. Urquijo and G. Varner and K. E. Varvell and C. H. Wang and M. -Z. Wang and P. Wang and X. L. Wang and M. Watanabe and Y. Watanabe and J. Wicht and E. Won and B. D. Yabsley and Y. Yamashita and Y. Yusa and Z. P. Zhang and V. Zhilich and V. Zhulanov and A. Zupanc},
journal= {arXiv preprint arXiv:1201.3502},
year = {2015}
}
备注
6 pages, 3 figures (submitted to PRL)