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Search for a dark baryon in the Ξ⁻ → π⁻ + invisible decay

Title: Search for a dark baryon in the Ξ⁻ → π⁻ + invisible decay
Authors: Ablikim, Medina; Achasov, Mikhail N.; Adlarson, Patrik; Ai, Xiaocong; Aliberti, Riccardo; Amoroso, Antonio; An, Qi; Bai, Yu; Bakina, Olga; Ban, Yong; R Bao, H.; Batozskaya, Varvara; Begzsuren, Khurelbaatar; Berger, Niklaus; Berlowski, Marcin; Bertani, Monica; Bettoni, Diego; Bianchi, Fabrizio; Bianco, E.; Bortone, Alberto; Boyko, Igor R.; Briere, Roy A.; Brüggemann, Anja; Cai, Hao; Cai, Minghang; Cai, Xiao; Calcaterra, Alessandro; Cao, Guofu; Cao, Ning; Çetin, Serkant Ali; Chai, Xin-Yu; Chang, Jinfan; Che, Guorong; Che, Yuzhi; Chen, Chunhui; Chen, Chao; Chen, Gang; Chen, Hesheng; Chen, Hongyang; Chen, Mali; Chen, Shenjian; Chen, Silu; Chen, Shaomin; Chen, Tong; Chen, Xurong; Chen, Xiaoting; Chen, X.Y.; Chen, Yuanbo; Chen, Y.Q.; Chen, Z.; Chen, Z.J.; Chen, Z.K.; Choi, S.K.; Chu, X.; Cibinetto, Gianluigi; Cossio, Fabio; Cottee-Meldrum, Jozie; Cui, Jia Jia; Dai, Hongliang; Dai, Jianping; Dbeyssi, Alaa; Boer, Remco E. de; Dedovich, Dmitri V.; Deng, Chuangqi; Deng, Ziyan; Denig, Achim; Denysenko, Igor; Destefanis, Marco Giovanni Maria; De Mori, Francesca; Ding, Biao; Ding, Xiaoxuan; Ding, Y.; Ding, Y.X.; Dong, J.; Dong, Liaoyuan; Dong, Mingyi; Dong, X.; Du, Mengchuan; Du, S.X.; Duan, Y.Y.; Egorov, Prokhor; Fan, G.F.; Fan, J.J.; Fan, Y.H.; Fang, J.; Fang, Shuangshi; Fang, Wenxing; Fang, Y.Q.; Farinelli, Riccardo; Fava, Luciano; Feldbauer, Florian; Felici, Giulietto; Feng, Changqing; Feng, Junhua; Feng, L.; Feng, Q.X.; Feng, Y.T.; Fritsch, Miriam; Fu, Chengdong; Fu, J.L.; Fu, Y.W.; Gao, H.; Gao, X.B.; Gao, Y.; Gao, Y.N.; Gao, Y.Y.; Garbolino, Sara; Garzia, Isabella; Ge, Panting; Ge, Zhenwu; Geng, Cong; Gersabeck, Evelina; Gilman, Alexander; Goetzen, Klaus; Gong, J.D.; Gong, Li; Gong, Wenxuan; Gradl, Wolfgang; Gramigna, Stefano; Greco, Michela; Gu, Minhao; Gu, Yunting; Guan, Chunyi; Guo, Aiqiang; Guo, Libo; Guo, Mengjiao; Guo, Rupan; Guo, Yuping; Guskov, Alexey; Gutierrez, J.; Han, K.L.; Han, Tingting; Hanisch, Frederike; Hao, K.D.; Hao, Xiqing; Harris, Frederick Allan; He, Kaikai; He, Kanglin; Heinsius, Fritz-Herbert; Heinz, Christopher H.; Heng, Yuekun; Herold, Christoph; Hong, PengCheng; Hou, Guoyi; Hou, Xiantao; Hou, Y.R.; Hou, Zhilong; Hu, Haiming; Hu, J.F.; Hu, Q.P.; Hu, S.L.; Hu, Tao; Hu, Y.; Hu, Z.M.; Huang, G.S.; Huang, Kaixuan; Huang, Linqin; Huang, P.; Huang, Xingtao; Huang, Y.P.; Huang, Yongsheng; Hussain, Tahir; Hüsken, Nils; Wiesche, Nikolai in der; Jackson, Joshua; Ji, Quan; Ji, Qingping; Ji, W.; Ji, X.B.; Ji, X.L.; Ji, Yuyao; Jia, Zekun; Jiang, D.; Jiang, Houbing; Jiang, Peicheng; Jiang, S.J.; Jiang, T.J.; Jiang, Xiaoshan; Jiang, Y.; Jiao, J.B.; Jiao, J.K.; Jiao, Zheng; Jin, Shan; Jin, Y.; Jing, Maoqiang; Jing, X.M.; Johansson, Tord; Kabana, Sonia; Kalantar-Nayestanaki, Nasser; Kang, Xiaolin; Kavatsyuk, Myroslav O.; Ke, Bai-Cian; Khachatryan, Vladimir; Khoukaz, Alfons; Kiuchi, Ryuta; Kolcu, Onur Bugra; Kopf, Bertram; Küßner, Meike; Kui, X.; Kumar, Neeraj; Kupsc, Andrzej; Kühn, Wolfgang; Lan, Q.; Lan, W.N.; Lei, T.T.; Lellmann, Max; Lenz, Thomas; Li, C.; Li, Chunhua; Li, C.K.; Li, D.M.; Li, F.; Li, G.; Li, Haibo; Li, Huijing; Li, H.N.; Li, Hui; Li, J.R.; Li, J.S.; Li, Kai; Li, K.L.; Li, Linjian; Li, Lei; Li, M.H.; Li, M.R.; Li, P.L.; Li, Peirong; Li, Q.M.; Li, Q.X.; Li, R.; Li, S.X.; Li, T.; Li, T.Y.; Li, Weidong; Li, Weiguo; Li, X.; Li, X.H.; Li, X.L.; Li, X.Y.; Li, X.Z.; Li, Y.; Li, Yangu; Li, Y.P.; Li, Zhijun; Li, Z.Y.; Liang, H.; Liang, Y.F.; Liang, Y.T.; Liao, Guangrui; Liao, L.B.; Liao, M.H.; Liao, Yipu; Libby, James; Limphirat, Ayut; Lin, C.C.; Lin, D.X.; Lin, L.Q.; Lin, T.; Liu, B.J.; Liu, B.X.; Liu, Cheng; Liu, C.X.; Liu, F.; Liu, Fu-Hu; Liu, Feng; Liu, G.M.; Liu, H.; Liu, H.B.; Liu, H.H.; Liu, H.M.; Liu, Huihui; Liu, J.B.; Liu, J.J.; Liu, K.; Liu, K.Y.; Liu, Ke; Liu, Liangchen; Liu, Lu; Liu, Meihong; Liu, P.L.; Liu, Q.; Liu, S.B.; Liu, Tong; Liu, W.K.; Liu, Weimin; Liu, W.T.; Liu, X.; Liu, X.K.; Liu, X.Y.; Liu, Y.; Liu, Yuan; Liu, Y.B.; Liu, Zhen-An; Liu, Z.D.; Liu, Zhiqing; Lou, Xinchou; Lu, F.X.; Lu, H.J.; Lu, Junguang; Lu, X.L.; Lu, Y.; Lu, Y.H.; Lu, Yunpeng; Lu, Z.H.; Luo, Chenglin; Luo, J.R.; Luo, J.S.; Luo, M.X.; Luo, Tao; Luo, X.L.; Lyu, Z.Y.; Lyu, Xiao-Rui; Lyu, Y.F.; Lyu, Y.H.; Ma, Fengcai; Ma, Hailong; Ma, Jun-Li; Ma, Lianliang; Ma, L.R.; Ma, Qiumei; Ma, Runqiu; Ma, R.Y.; Ma, T.; Ma, X.T.; Ma, Xiaoyan; Ma, Y.M.; Maas, Frank E.; Mackay, Innes; Maggiora, Marco; Malde, Sneha; Malik, Q.A.; Mao, H.X.; Mao, Yajun; Mao, Zepu; Marcello, Simonetta; Marshall, A.; Melendi, Federico Matias; Meng, Y.H.; Meng, Z.X.; Mezzadri, Giulio; Miao, H.; Min, T.J.; Mitchell, Ryan Edward; Mo, Xiaohu; Moses, Benjamin'Benjamin; Yu Muchnoi, N.; Muskalla, Jan; Nefedov, Yury; Nerling, Frank; Nie, L.S.; Nikolaev, Ivan Borisovich; Ning, Z.; Nisar, Shabana; Niu, Q.L.; Niu, W.D.; Normand, C.; Olsen, Stephen L.; Ouyang, Qun; Pacetti, Simone; Pan, Xiang; Pan, Y.; Pathak, Amit; Pei, Y.P.; Pelizäus, Marc; Peng, H.P.; Peng, X.J.; Peng, Y.Y.; Peters, Klaus; Petridis, Konstantinos; Ping, J.L.; Ping, Ronggang; Plura, Saskia; Prasad, Vindhyawasini; Qi, F.Z.; Qi, Hongrong; Qi, Ming; Qian, S.; Qian, Wenbin; Qiao, Congfeng; Qiao, J.H.; Qin, Jiajia; Qin, J.L.; Qin, L.Q.; Qin, L.Y.; Qin, P.B.; Qin, Xiaoping; Qin, X.S.; Qin, Zhonghua; Qiu, Jinfa; Qu, Z.H.; Rademacker, Jonas; Redmer, Christoph Florian; Rivetti, Angelo; Da Rocha Rolo, Manuel Dionisio; Rong, Gang; Rong, S.S.; Rosini, Francesco; Rosner, Ch; Ruan, M.Q.; Salone, Nora; Sarantsev, Andrei V.; Schelhaas, Yasemin; Schönning, Karin; Scodeggio, Marco; Shan, Keyu; Shan, Wei; Shan, Xinyu; Shang, Z.J.; Shangguan, Jianfeng; Shao, Ligang; Shao, Ming; Shen, Chengping; Shen, Hong-Fei; Shen, Wenhan; Shen, Xiaoyan; Shi, B.A.; Shi, H.; Shi, J.L.; Shi, J.Y.; Shi, S.Y.; Shi, X.; Song, H.L.; Song, Jiaojiao; Song, T.Z.; Song, Weimin; Song, Y.J.; Song, Yunxuan; Sosio, Stefano; Spataro, Stefano; Stieler, Frederic; Su, S.S.; Su, Y.J.; Sun, G.B.; Sun, Gongxing; Sun, H.; Sun, H.K.; Sun, J.F.; Sun, K.; Sun, Liang; Sun, S.S.; Sun, T.; Sun, Y.C.; Sun, Y.H.; Sun, Y.J.; Sun, Y.Z.; Sun, Z.Q.; Sun, Zhentian; Tang, C.J.; Tang, G.Y.; Tang, J.; Tang, J.J.; Tang, L.F.; Tang, YingAo; Tao, L.Y.; Tat, Martin; Teng, Jiaxiu; Tian, J.Y.; Tian, W.H.; Tian, Y.; Tian, Z.F.; Uman, Ismail; Wang, Bo; Wang, C.; Wang, Cong; Wang, D.Y.; Wang, H.J.; Wang, J.J.; Wang, K.; Wang, Liangliang; Wang, L.W.; Wang, M.; Wang, N.Y.; Wang, S.; Wang, T.; Wang, T.J.; Wang, W.; Wang, Wei; Wang, Weiping; Wang, X.; Wang, Xiongfei; Wang, X.J.; Wang, X.L.; Wang, X.N.; Wang, Y.; Wang, Y.D.; Wang, Y.F.; Wang, Yinghao; Wang, Y.J.; Wang, Y.L.; Wang, Y.N.; Wang, Y.Q.; Wang, Yaqian; Wang, Yi; Wang, Yuan; Wang, Z.; Wang, Z.L.; Wang, Z.Q.; Wang, Z.Y.; Wei, D.H.; Wei, H.R.; Weidner, Frederik; Wen, Shuopin; Wen, Y.R.; Wiedner, Ulrich; Wilkinson, Guy; Wu, C.; Wu, Jinfei; Wu, Linghui; Wu, Lianjin; Wu, Lianjie; Wu, S.G.; Wu, S.M.; Wu, Xiao; Wu, X.H.; Wu, Y.J.; Wu, Z.; Xia, L.; Xian, X.M.; Xiang, Benhou; Xiao, D.; Xiao, G.Y.; Xiao, Hao; Xiao, Y.L.; Xiao, Zhenjun; Xie, Cheng; Xie, K.J.; Xie, X.H.; Xie, Y.; Xie, Y.G.; Xie, Y.H.; Xie, Z.P.; Xing, T.Y.; Xu, C.J.; Xu, Guofa; Xu, H.Y.; Xu, M.; Xu, Q.J.; Xu, Q.N.; Xu, T.D.; Xu, Wei; Xu, W.L.; Xu, Xinping; Xu, Y.; Xu, Yingchao; Xu, Z.S.; Yan, F.; Yan, H.Y.; Yan, Liang; Yan, W.B.; Yan, Wencheng; Yan, W.H.; Yan, W.P.; Yan, Xueqing; Yang, H.J.; Yang, Haolin; Yang, Hongxun; Yang, J.H.; Yang, R.J.; Yang, T.; Yang, Y.; Yang, Y.F.; Yang, Youhua; Yang, Y.Q.; Yang, Yongxu; Yang, Y.Z.; Ye, M.; Ye, Minghan; Ye, Z.J.; Yin, Junhao; You, Z.Y.; Yu, Boxiang; Yu, Chunxu; Yu, G.; Yu, J.S.; Yu, L.Q.; Yu, M.C.; Yu, T.; Yu, Xudong; Yu, Y.C.; Yuan, Chang-Zheng; Yuan, H.; Yuan, J.; Yuan, L.; Yuan, S.C.; Yuan, X.Q.; Yuan, Ye; Yuan, Zhaoyang; Yue, C.X.; Yue, Ying; Zafar, A.A.; Zeng, S.H.; Zeng, X.; Zeng, Y.; Zeng, Yujie; Zeng, Y.J.; Zhai, X.Y.; Zhan, Y.H.; Zhang, A.Q.; Zhang, Bolun; Zhang, Bingxin; Zhang, D.H.; Zhang, G.Y.; Zhang, H.; Zhang, H.C.; Zhang, H.H.; Zhang, H.Q.; Zhang, H.R.; Zhang, Hongyu; Zhang, Jin; Zhang, J.; Zhang, J.J.; Zhang, Jielei; Zhang, Jingqing; Zhang, Jiasheng; Zhang, J.W.; Zhang, J.X.; Zhang, Jianyong; Zhang, J.Z.; Zhang, Jianyu; Zhang, L.M.; Zhang, Lei; Zhang, N.; Zhang, Peng; Zhang, Q.; Zhang, Q.Y.; Zhang, R.Y.; Zhang, S.H.; Zhang, Shulei; Zhang, X.M.; Zhang, X.Y.; Zhang, Y.; Zhang, Yateng; Zhang, Y.H.; Zhang, Y.M.; Zhang, Y.P.; Zhang, Z.D.; Zhang, Z.H.; Zhang, Z.L.; Zhang, Z.X.; Zhang, Z.Y.; Zhang, Z.Z.; Zhao, G.; Zhao, Jingyi; Zhao, J.Z.; Zhao, L.; Zhao, Ming-Gang; Zhao, N.; Zhao, Ruoping; Zhao, Shujun; Zhao, Yubin; Zhao, Y.L.; Zhao, Y.X.; Zhao, Zhengguo; Zhemchugov, Alexey; Zheng, Bo; Zheng, B.M.; Zheng, Jianping; Zheng, Wenjing; Zheng, X.R.; Zheng, Y.H.; Zhong, B.; Zhong, C.; Zhou, H.; Zhou, J.Q.; Zhou, J.Y.; Zhou, S.; Zhou, X.; Zhou, X.K.; Zhou, X.R.; Zhou, X.Y.; Zhou, Y.X.; Zhou, Yizhuo; Zhu, Aonan; Zhu, J.; Zhu, K.; Zhu, Kejun; Zhu, K.S.; Zhu, L.; Zhu, L.X.; Zhu, S.H.; Zhu, T.J.; Zhu, W.D.; Zhu, W.J.; Zhu, W.Z.; Zhu, Y.C.; Zhu, Zian; Zhuang, Xinyu; Zou, Jiaheng; Zu, Jian
Publication Year: 2025
Collection: Publication Server of Goethe University Frankfurt am Main
Subject Terms: ddc:530
Description: A search for a dark baryon is performed for the first time in the two-body decay Ξ − → 𝜋 − + invisible using (10.087 ± 0.044) × 109 𝐽∕𝜓 events collected at a center-of-mass energy of √ 𝑠 = 3.097GeV with the BESIII detector at the BEPCII collider. No significant signal is observed, and the 90% (95%) confidence level upper limits on the branching fraction (Ξ− → 𝜋 − + invisible) are determined to be 4.2 × 10−5 (5.2 × 10−5), 6.9 × 10−5 (8.4 × 10−5), 6.5 × 10−4 (7.6 × 10−4), 1.1 × 10−4 (1.3 × 10−4) and 4.5 × 10−5 (5.5 × 10−5), under the dark baryon mass hypotheses of 1.07GeV∕𝑐 2 , 1.10GeV∕𝑐 2 , 𝑚Λ (1.116GeV∕𝑐 2 ), 1.13GeV∕𝑐 2 , and 1.16GeV∕𝑐 2 , respectively. The constraints obtained on the Wilson coefficients 𝐶 𝐿 𝑢𝑠,𝑠 and 𝐶 𝑅 𝑢𝑠,𝑠 are more stringent than the previous limits derived from the LHC searches for the colored mediators.
Document Type: article in journal/newspaper
File Description: application/pdf
Language: English
Relation: https://doi.org/10.1016/j.physletb.2025.140099
DOI: 10.1016/j.physletb.2025.140099
Availability: http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/95696; https://nbn-resolving.org/urn:nbn:de:hebis:30:3-956968; https://doi.org/10.1016/j.physletb.2025.140099; http://publikationen.ub.uni-frankfurt.de/files/95696/1-s2.0-S037026932500855X-main.pdf
Rights: https://creativecommons.org/licenses/by/4.0/deed.de ; info:eu-repo/semantics/openAccess
Accession Number: edsbas.B1351604
Database: BASE