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Amoroso, A. A. Zafar, A. Bortone, A. Brueggemann, A. Calcaterra, A. Dbeyssi, A. Denig, A. Gilman, A. Guskov, A. Khoukaz, A. Kupsc, A. Limphirat, A. Marshall, A. N. Zhu, A. Pathak, A. Q. Guo, A. Rivetti, A. Sarantsev, A. Zhemchugov, B. A. Shi, B. C. Ke, BESIII Collaboration: M. Ablikim, B. H. Xiang, Bin Wang, B. J. Liu, B. Kopf, B. L. Zhang, B. Moses, B. M. Zheng, Bo Wang, B. Wang, B. X. Liu, B. X. Yu, B. X. Zhang, B. Zheng, B. Zhong, C. C. Lin, C. D. Fu, C. F. Qiao, C. F. Redmer, C. Geng, Chao Chen, Chao Wang, C. H. Chen, C. Herold, C. H. Heinz, C. H. Li, Ch. Rosner, Chunkai Li, Ch. Y. Shi, C. J. Tang, C. J. Xu, C. K. Li, C. Li, C. Liang, C. Liu, C. L. Luo, C. Normand, Cong Li, Cong Wang, C. P. Shen, C. Q. Deng, C. Q. Feng, C. S. Akondi, C. Wang, C. Xie, C. X. Lin, C. X. Liu, C. X. Yu, C. X. Yue, C. Y. Guan, C. Z. He, C. Zhong, C. Z. Yuan, D. Bettoni, D. B. Xiong, D. Cabiati, D. Dedovich, D. H. Wei, D. H. Zhang, D. Jiang, D. J. Wei, D. M. Li, D. Wei, D. Xiao, D. X. Lin, D. Y. Wang, E. Bianco, E. M. Gersabeck, E. van der Smagt, F. A. Harris, F. Bianchi, F. C. Ma, F. Cossio, F. De Mori, F. E. Maas, Feng Liu, F. Feldbauer, F. Hanisch, F. H. Heinsius, F. H. Liu, F. Li, F. Liu, F. M. Melendi, F. Nerling, F. Rosini, F. R. Zeng, F. Stieler, F. Weidner, F. Yan, F. Z. Qi, G. B. Sun, G. Chen, G. Cibinetto, Gengyuan Zhang, G. F. Cao, G. Felici, G. F. Fan, G. F. Xu, G. Li, G. L. Peng, G. Mezzadri, G. M. Liu, G. R. Che, G. R. Liao, G. Rong, G. S. Huang, G. Wilkinson, G. X. Sun, G. Y. Hou, G. Y. Tang, G. Yu, G. Y. Xiao, G. Y. Zhang, G. Zhao, Han Zhang, H. B. Jiang, H. B. Li, H. B. Liu, H. Cai, H. C. Zhang, Heng Ma, H. F. Shen, H. Gao, H. Guo, H. H. Zhang, H. J. Li, H. J. Lu, H. J. Wang, H. J. Yang, H. K. Sun, H. L. Dai, H. Liang, H. Liu, H. L. Li, H. L. Ma, H. L. Song, H. L. Xia, H. L. Yang, H. M. Hu, H. Miao, H. M. Liu, H. Neuwirth, H. N. Li, H. P. Li, H. P. Peng, H. Q. Zhang, H.-R. Bao, H. R. Qi, H. R. Wang, H. R. Wei, H. R. Wen, H. R. Zhang, H. S. Chen, H. Shi, H. Sun, H. Tabaharizato, Huihui Liu, Hui Li, H. Xiao, H. X. Mao, H. X. Yang, H. Y. Chen, H. Yuan, H. Y. Xu, H. Y. Zhang, H. Zhang, H. Zhou, I. Boyko, I. Denisenko, I. Garzia, I. Mackay, I. Uman, J. B. Gong, J. B. Jiao, J. B. Liu, J. Cheng, J. Cottee-Meldrum, J. D. Gong, J. Dong, J. Fang, J. F. Chang, J. F. Hu, J. F. Qiu, J. F. Shangguan, J. F. Sun, J. F. Wu, J. G. Lu, J. Gollub, J. Gutierrez, J. H. Feng, J. H. Qiao, J. H. Yang, J. H. Zou, Jianyu Zhang, Jie Yuan, Jin Fang, Jin Zhang, Jiyuan Zhang, J. Jackson, J. J. Fan, J. J. Liu, J. J. Qin, J. J. Song, J. J. Tang, J. J. Wang, J. J. Zhang, J. K. Jiao, J. L. Fu, J. Libby, J. L. Ma, J. L. Ping, J. L. Qin, J. L. Shi, J. L. Zhang, J. Muskalla, J. N. Guo, J. N. Li, J. P. Dai, J. P. Wang, J.-P. Zhao, J. P. Zheng, J. Q. Zhang, J. Q. Zhou, J. Rademacker, J. R. Luo, J. S. Li, J. S. Luo, J. S. Yu, J. S. Zhang, J. Tang, Junhao Yin, J. Wang, J. W. Li, J. W. Zhang, J. X. Teng, J. X. Zhang, J. Y. Han, J. Y. Shi, J. Y. Tian, J. Yuan, J. Y. Zhang, J. Y. Zhao, J. Zhang, J. Zhu, J. Zu, J. Z. Zhang, J. Z. Zhao, K. Begzsuren, K. D. Hao, Ke Liu, K. Goetzen, K. J. Xie, K. J. Zhu, K. K. He, K. L. He, K. Li, K. Liu, K. L. Li, K. Peters, K. Petridis, K. Schoenning, K. Sun, K. S. Zhu, Kun Liu, K. Wang, K. X. Huang, K. Y. Liu, K. Zhu, L. B. Guo, L. B. Liao, L. C. Liu, L. C. L. Jin, Lei Li, Lei Zhang, Lei Zhao, L. Fava, L. Feng, L. F. Tang, L. Ge, L. Gong, L. G. Shao, L. H. Wu, Lianjie Wu, Lin Zhu, L. J. Li, L. J. Wu, L. K. Jia, L. Kr\\\"oger, L. Kr\\\"ummel, L. Liu, L. L. Ma, L. L. Wang, L. M. Zhang, L. N. Cheng, L. P\\\"opping, L. Q. Huang, L. Q. Qin, L. R. Ma, L. Sun, Lu Liu, L. W. Wang, L. W. Yu, L. Xia, L. X. Zhu, L. Yan, L. Y. Dong, L. Y. Qin, L. Y. Tao, L. Yuan, L. Zhao, M. B. Bertani, M. Berlowski, M. C. Du, M. Destefanis, M. D. Gu, M. Fritsch, M. Greco, M. G. Zhao, M. H. Cai, M. H. Gu, M. H. Li, M. H. Liao, M. H. Liu, M. H. Shi, M. H. Song, M. H. Ye, Mi Wang, M. J. Guo, M. Kuessner, M. K. Yuan, M. L. Chen, M. Lellmann, M. Maggiora, M. N. 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Zhao, S. Kabana, S. K. Choi, S. L. Hu, S. Li, S. L. Olsen, S. Maity, S. Malde, S. Marcello, S. M. Chen, S. M. Wu, S. Nisar, S. N. Zhang, S. Pacetti, S. Plura, S. P. Wen, S. Qian, S. S. Fang, S. Sosio, S. Spataro, S. S. Rong, S. S Su, S. S. Sun, S. Stansilaus, S. Wang, S. X. Du, S. X. Li, S. Y. Li, S. Y. Shi, S. Zhou, T. Chen, T. D. Xu, T. Hu, T. Hussain, T. J. Min, T. Johansson, T. J. Wang, T. J. Zhu, T. Lenz, T. Li, T. Lin, T. Liu, T. Luo, T. Ma, T. Sun, T. T. Chang, T. T. Han, T. T. Lei, T. Wang, T. Y. Li, T. Yu, T. Y. Xing, T. Z. Song, U. Wiedner, V. Batozskaya, V. Khachatryan, V. Prasad, W. B. Qian, W. B. Yan, W. Chen, W. C. Yan, W. D. Li, W. D. Niu, W. D. Zhu, W. G. Li, W. Gradl, W. H. Shen, W. H. Tian, W. H. Yan, W. Ji, W. J. Zheng, W. J. Zhu, W. K\\\"uhn, W. M. Liu, W. M. Song, W. N. Lan, W. P. Wang, W. P. Yan, W. Q. Zheng, W. Shan, W. T. Liu, W. Wang, W. X. Fang, W. X. Gong, W. Y. Sun, W. Z. Zhu, X. B. Ji, X. Cai, X. C. Ai, X. C. Dai, X. Chu, X. C. Lou, X. Dong, X. D. Yu, X. F. Wang, X. Gao, X. Guo, X. Han, X. H. Li, X. H. Mo, Xin Wang, X. J. Peng, X. K. Li, X. K. Liu, X. Kui, X. K. Zhou, X. L. Bao, X. L. Du, X. Li, X. Liu, X. L. Ji, X. L. Kang, X. L. Li, X. L. Liu, X. L. Lu, X. L. Luo, X. L. Wang, X. M. Jing, X. M. Zhang, X. N. Wang, X. Pan, X. P. Liu, X. P. Qin, X. P. Xu, X. Q. Hao, X. Q. Jia, X. Q. Yan, X. R. Chen, X. R. Lyu, X. R. Zheng, X. R. Zhou, X. Shi, X. S. Jiang, X. S. Kang, X. S. Qin, X. T. Chen, X. T. Hou, X. T. Huang, X. T. Ma, X. W. Wu, X. X. Ding, X. Y. Chai, X. Y. Chen, X. Y. Li, X. Y. Liu, X. Y. Ma, X. Y. Shan, X. Y. Shen, X. Y. Yang, X. Y. Zhang, X. Y. Zhou, X. Y. Zhuang, X. Zeng, X. Zhou, X. Z. Li, Yanning Wang, Yaqian Wang, Y. A. Tang, Y. Bai, Y. Ban, Y. B. Chen, Y. B. Liu, Y. B. Zhao, Y. C. Sun, Y. C. Xu, Y. C. Yu, Y. C. Zhai, Y. C. Zhu, Y. Ding, Y. D. Wang, Y. F. Liang, Y. F. Lyu, Y. F. Wang, Y. Gao, Y. G. Li, Y. G. Xie, Y. H. An, Y. H. Fan, Y. H. Lu, Y. H. Lyu, Y. H. Meng, Y. H. Sun, Y. Hu, Y. H. Wang, Y. H. Xie, Y. H. Yang, Y. H. Zhan, Y. H. Zhang, Y. H. Zheng, Yi. Ding, Yi Liu, Ying Yue, Yi Wang, Y. Jiang, Y. Jin, Y. J. Mao, Y. J. Sun, Y. J. Wang, Y. J. Zeng, Y. K. Heng, Y. Li, Y. Liu, Y. Lu, Y. L. Wang, Y. L. Xiao, Y. L. Zhao, Y. M. Ma, Y. M. Yang, Y. Nefedov, Y. N. Gao, Y. Niu, Y. N. Wang, Yongchao Yu, Youhua Yang, Y. Pan, Y. P. Guo, Y. P. Huang, Y. P. Li, Y. P. Liao, Y. P. Lu, Y. P. Pei, Y. P. Zhang, Y. P. Zhao, Y. Q. Chen, Y. Q. Du, Y. Q. Fang, Y. Q. Yang, Y. R. Hou, Y. Schelhaas, Y. S. Huang, Y. T. Feng, Y. Tian, Y. T. Liang, Y. T. Zhang, Yuan Wang, Yujie Zeng, Yunong Gao, Yu Zhang, Y. Wang, Y. W. Fu, Y. X. Ding, Y. X. Hu, Y. Xie, Y. X. Song, Y. Xu, Y. X. Zhao, Y. X. Zhou, Y. Yang, Y. Y. Duan, Y. Y. Gao, Y. Y. Ji, Y. Y. Kuang, Y. Y. Peng, Y. Yuan, Y. Y. Yan, Y. Z. Che, Y. Zhang, Y. Z. Sun, Y. Z. Yang, Y. Z. Zhou, Z. A. Liu, Z. A. Zhu, Z. D. Liu, Z. D. Zhang, Z. F. Tian, Z. Gao, Z. Guo, Z. G. Zhao, Z. H. Duan, Zhilong Zhang, Zhi Wang, Z. H. Li, Z. H. Lu, Z. H. Qin, Z. H. Qu, Z. H. Zhang, Zh. Zh. Zhang, Zirong Song, Ziyang Zhang, Ziyi Wang, Ziyu Zhang, Z. Jiao, Z. J. Li, Z. J. Shang, Z. J. Xiao, Z. J. Ye, Z. K. Chen, Z. L. Hou, Z. L. Li, Z. L. Liu, Z. L. Wang, Z. L. Zhang, Z. M. Hu, Z. Ning, Z. P. Mao, Z. P. Xie, Z. P. Yao, Z. Q. Liu, Z. Q. Sun, Z. Q. Wang, Z. S. Xu, Z. T. Sun, Z. Wang, Z. W. Ge, Z. Wu, Z. X. Li, Z. X. Liu, Z. X. Meng, Z. X. Zhang, Z. Y. Deng, Z. Y. Li, Z. Y. Liu, Z. Y. Lv, Z. Y. Wang, Z. Y. Yang, Z. Y. You, Z. Y. Zhang, Z. Zhang","submitted_at":"2026-03-25T13:04:40Z","abstract_excerpt":"Based on a novel method for producing antineutrons via $J/\\psi$ decays, we report a study of $\\bar{n}p$ inelastic scattering into final states containing kaons. The analysis uses $(10087\\pm44)\\times 10^6$ $J/\\psi$ events collected at the BESIII detector operating at the BEPCII storage ring. Antineutrons are produced via $J/\\psi \\to p \\pi^{-} \\bar{n}$ decays and tagged by the detected protons and pions, resulting in antineutron momenta ranging from 0 to 1174~MeV/$c$, while target protons are provided by the hydrogen in the beam-pipe material. 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