$\mathbf{B^{0}\rightarrow\rho^{+}\rho^{-}}$衰变研究及其对CKM角$\mathbf{\phi_2}$的启示
高能物理 - 实验
2016-10-04 v2
摘要
我们给出了衰变的分支比和纵向极化分数的测量，以及衰变为纵向极化对的时间依赖破坏参数，所用数据来自Belle在共振处收集的非对称能量对撞机KEKB的最终数据集，包含个对。我们得到, , , 。我们进行同位旋分析以约束CKM角，得到两个解，其中\begin{eqnarray} \phi_{2} = (93.7\pm10.6)^{\circ},\nonumber \end{eqnarray}与基于其他标准模型的数据拟合最为相容。
引用
@article{arxiv.1510.01245,
title = {Study of $\mathbf{B^{0}\rightarrow\rho^{+}\rho^{-}}$ decays and implications for the CKM angle $\mathbf{\phi_2}$},
author = {P. Vanhoefer and J. Dalseno and C. Kiesling and A. Abdesselam and I. Adachi and H. Aihara and S. Al Said and K. Arinstein and D. M. Asner and H. Atmacan and T. Aushev and T. Aziz and V. Babu and I. Badhrees and A. M. Bakich and V. Bansal and E. Barberio and P. Behera and B. Bhuyan and J. Biswal and A. Bobrov and A. Bozek and M. Bracko and T. E. Browder and D. Cervenkov and P. Chang and V. Chekelian and A. Chen and B. G. Cheon and K. Chilikin and R. Chistov and V. Chobanova and S. -K. Choi and Y. Choi and D. Cinabro and M. Danilov and N. Dash and J. Dingfelder and Z. Dolezal and Z. Drasal and D. Dutta and S. Eidelman and H. Farhat and J. E. Fast and T. Ferber and B. G. Fulsom and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and Y. M. Goh and P. Goldenzweig and B. Golob and D. Greenwald and J. Haba and P. Hamer and T. Hara and K. Hayasaka and H. Hayashii and X. H. He and T. Horiguchi and W. -S. Hou and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and Y. Iwasaki and W. W. Jacobs and I. Jaegle and D. Joffe and K. K. Joo and T. Julius and K. H. Kang and E. Kato and P. Katrenko and T. Kawasaki and D. Y. Kim and H. J. Kim and J. B. Kim and J. H. Kim and K. T. Kim and M. J. Kim and S. H. Kim and Y. J. Kim and K. Kinoshita and B. R. Ko and S. Korpar and P. Krizan and P. Krokovny and T. Kuhr and T. Kumita and A. Kuzmin and Y. -J. Kwon and I. S. Lee and L. Li and Y. Li and L. Li Gioi and J. Libby and D. Liventsev and P. Lukin and M. Masuda and D. Matvienko and K. Miyabayashi and H. Miyata and R. Mizuk and G. B. Mohanty and S. Mohanty and A. Moll and H. K. Moon and T. Mori and E. Nakano and M. Nakao and T. Nanut and Z. Natkaniec and . Nayak and N. K. Nisar and S. Nishida and S. Ogawa and S. Okuno and P. Pakhlov and G. Pakhlova and B. Pal and C. W. Park and H. Park and T. K. Pedlar and R. Pestotnik and M. Petric and L. E. Piilonen and C. Pulvermacher and E. Ribezl and M. Ritter and A. Rostomyan and H. Sahoo and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and Y. Sato and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and A. J. Schwartz and Y. Seino and K. Senyo and O. Seon and M. E. Sevior and V. Shebalin and C. P. Shen and T. -A. Shibata and J. -G. Shiu and F. Simon and Y. -S. Sohn and A. Sokolov and E. Solovieva and M. Staric and M. Sumihama and T. Sumiyoshi and U. Tamponi and Y. Teramoto and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and S. Uno and Y. Usov and C. Van Hulse and G. Varner and A. Vinokurova and A. Vossen and M. N. Wagner and C. H. Wang and M. -Z. Wang and P. Wang and M. Watanabe and Y. Watanabe and E. Won and H. Yamamoto and J. Yamaoka and S. Yashchenko and H. Ye and Y. Yook and Y. Yusa and Z. P. Zhang and V. Zhilich and V. Zhulanov and A. Zupanc},
journal= {arXiv preprint arXiv:1510.01245},
year = {2016}
}
备注
26 pages, 7 figures, submitted to PRD