$ e^+ e^ - $在Belle的两个参考坐标中与HADRONE的最终状态相撞的两个粒子角相关性

论文标题

$ e^+ e^ - $在Belle的两个参考坐标中与HADRONE的最终状态相撞的两个粒子角相关性

Two-particle angular correlations in $e^+ e^-$ collisions to hadronic final states in two reference coordinates at Belle

论文作者

Belle Collaboration, Chen, Y. -C., Lee, Y. -J., Chang, P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bračko, M., Branchini, P., Budano, A., Campajola, M., Červenkov, D., Chang, M. -C., Chekelian, V., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S. -J., Choi, S. -K., Choi, Y., Choudhury, S., Cinabro, D., Das, S., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Hadjivasiliou, C., Hayasaka, K., Hayashii, H., Hedges, M. T., Herrmann, D., Hou, W. -S., Hsu, C. -L., Inami, K., Ipsita, N., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jang, E. -J., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K. -H., Kim, Y. -K., Kodyš, P., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y. -J., Lam, T., Lange, J. S., Lee, S. C., Li, J., Li, L. K., Li, Y., Li, Y. B., Gioi, L. Li, Libby, J., Lin, C. -W., Lieret, K., Liventsev, D., Masuda, M., Matsuda, T., Maurya, S. K., Meier, F., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlova, G., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Rout, N., Russo, G., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schwanda, C., Seidl, R., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J. -G., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., van Tonder, R., Varner, G., Vinokurova, A., Vossen, A., Waheed, E., Wang, E., Wang, M. -Z., Wang, X. L., Watanabe, M., Watanuki, S., Won, E., Yan, W., Yang, S. B., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., Zhukova, V.

论文摘要

我们使用使用常规梁轴和事件推力轴定义的坐标系对两粒子角相关的分析，并提出后者是$ e^+ e^ - $ collision System中相关结构解释的有用表示。 $ e^+ e^ - $ $碰撞在$ \ sqrt {s} = 10.52 $ gev和$ 10.58 $ GEV的质量最终状态下，kekb的贝尔检测器记录了$ 10.58 $ GEV。在本文中，第一个数据集的结果是上一本Belle出版物ARXIV的补充：2201.01694，而后者是$υ（4S）$共振的第一个两粒子相关测量，并且对其衰减产品敏感。报告测量是带电粒子多重性的函数。最后，使用蒙特卡洛模拟和实验数据的组合讨论了对相关结构的定性理解。

We present the analysis of two-particle angular correlations using coordinate systems defined with the conventional beam axis and the event thrust axis, and propose the latter to be a useful representation for the correlation structure interpretation in the $e^+ e^-$ collision system. The $e^+ e^-$ collisions to hadronic final states at center-of-mass energies of $\sqrt{s} = 10.52$ GeV and $10.58$ GeV are recorded by the Belle detector at KEKB. In this paper, results on the first dataset are supplementary to the previous Belle publication arXiv:2201.01694 while the latter one is the first two-particle correlation measurement at a collision energy on the $Υ(4S)$ resonance and sensitive to its decay products. Measurements are reported as a function of the charged-particle multiplicity. Finally, a qualitative understanding of the correlation structure is discussed using a combination of Monte Carlo simulations and experimental data.

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