Open Access

Medina Ablikim, Mikhail N. Achasov, Patrik Adlarson, Samer Ahmed, Malte Albrecht, M. Alekseev, Antonio Amoroso, Fenfen An, Qi An, Yu Bai, Olga Bakina, Rinaldo Baldini Ferroli, Yong Ban, Khurelbaatar Begzsuren, Jake V. Bennett, Niklaus Berger, Monica Bertani, Diego Bettoni, Fabrizio Bianchi, Jacek Biernat, Johannes Bloms, Igor R. Boyko, Roy A. Briere, H. Cai, Xiao Cai, Alessandro Calcaterra, Guofu Cao, Ning Cao, Serkant Ali Çetin, J. Chai, Jinfan Chang, W. L. Chang, Gueorgui A. Chelkov, Chen, G. Chen, Hesheng Chen, J. C. Chen, M. L. Chen, S. J. Chen, Yuanbo Chen, W. Cheng, Gianluigi Cibinetto, Fabio Cossio, X. F. Cui, Hongliang Dai, J. P. Dai, Xinchen Dai, Alaa Dbeyssi, Dmitri V. Dedovich, Ziyan Deng, Achim Denig, Igor Denysenko, Marco Giovanni Maria Destefanis, Francesca De Mori, Y. Ding, C. Dong, J. Dong, Liaoyuan Dong, Mingyi Dong, Z. L. Dou, Shuxian Du, J. Z. Fan, J. Fang, Shuangshi Fang, Y. Fang, Riccardo Farinelli, Luciano Fava, Florian Feldbauer, Giulietto Felici, C. Q. Feng, Miriam Fritsch, Chengdong Fu, Ying Fu, Q. Gao, X. L. Gao, Y. Gao, Y. Gao, Yonggui Gao, Z. Gao, B. Garillon, Isabella Garzia, Alexander Gilman, Klaus Goetzen, L. Gong, Wenxuan Gong, Wolfgang Gradl, Michela Greco, L. M. Gu, Minhao Gu, Y. T. Gu, Aiqiang Guo, L. B. Guo, Rupan Guo, Yuping Guo, Alexey Guskov, S. Han, Xiqing Hao, Frederick Allan Harris, K. L. He, Fritz-Herbert Heinsius, T. Held, Yuekun Heng, Y. R. Hou, Zhilong Hou, Haiming Hu, J. F. Hu, Tao Hu, Y. Hu, G. S. Huang, J. S. Huang, Xingtao Huang, X. Z. Huang, Z. L. Huang, Nils Huesken, Tahir Hussain, Walter Ikegami Andersson, William Imoehl, Muzaffar Irshad, Quan Ji, Qingping Ji, X. B. Ji, X. L. Ji, H. L. Jiang, Xiaoshan Jiang, X. Y. Jiang, J. B. Jiao, Zheng Jiao, D. P. Jin, Shan Jin, Y. Jin, Tord Johansson, Nasser Kalantar-Nayestanaki, Xiaolin Kang, Rosa Kappert, Myroslav O. Kavatsyuk, Bai-Cian Ke, Iman Keshk, T. Khan, Alfons Khoukaz, Patric Kiese, Ryuta Kiuchi, Ralf Kliemt, Leonard Koch, Onur Bugra Kolcu, Bertram Kopf, Miriam Kümmel, Meike Küßner, Andrzej Kupsc, Matthew Glenn Kurth, Matthew Glenn Kurth, Wolfgang Kühn, Jens Sören Lange, Paul Larin, Lia Lavezzi, Hans Heinrich Leithoff, Thomas Lenz, C. Li, Cheng Li, D. M. Li, F. Li, F. Y. Li, G. Li, Haibo Li, Huijing Li, J. C. Li, J. W. Li, Ke Li, L. K. Li, Lei Li, P. L. Li, Peirong Li, Q. Y. Li, Weidong Li, Weiguo Li, X. L. Li, X. N. Li, X. Q. Li, X. H. Li, Z. B. Li, H. Liang, H. Liang, Y. F. Liang, Y. T. Liang, Guangrui Liao, L. Z. Liao, James Libby, C. X. Lin, D. X. Lin, Y. J. Lin, B. Liu, B. J. Liu, C. X. Liu, D. Liu, D. Y. Liu, Fu-Hu Liu, Fang Liu, Feng Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. Y. Liu, K. Y. Liu, Ke Liu, Q. Liu, S. B. Liu, Tong Liu, X. Liu, X. Y. Liu, Y. B. Liu, Zhen-An Liu, Zhiqing Liu, Y. F. Long, Xinchou Lou, H. J. Lu, J. D. Lu, Junguang Lu, Y. Lu, Yunpeng Lu, Chenglin Luo, M. X. Luo, P. W. Luo, Tao Luo, X. L. Luo, Stefano Lusso, Xiao-Rui Lyu, Fengcai Ma, Hailong Ma, Lianliang Ma, M. M. Ma, Qiumei Ma, X. N. Ma, X. X. Ma, Xiaoyan Ma, Y. M. Ma, Frank E. Maas, Marco Maggiora, Stephan Maldaner, Qadeer Afzal Malik, Alessio Mangoni, Yajun Mao, Zepu Mao, Simonetta Marcello, Z. X. Meng, Johannes Gerhardus Messchendorp, Giulio Mezzadri, J. Min, T. J. Min, Ryan Edward Mitchell, Xiaohu Mo, Y. J. Mo, C. Morales Morales, Nikolai Yu. Muchnoi, Hajime Muramatsu, A. Mustafa, Simon Nakhoul, Yury Nefedov, Frank Nerling, Ivan Borisovich Nikolaev, Z. Ning, Shabana Nisar, S. L. Niu, Stephen L. Olsen, Qun Ouyang, Simone Pacetti, Y. Pan, Michael Papenbrock, Piero Patteri, Marc Pelizäus, H. P. Peng, Klaus Peters, J. Pettersson, J. L. Ping, Ronggang Ping, A. Pitka, Ronald Poling, Vindhyawasini Prasad, Ming Qi, Tianyu Qi, S. Qian, Congfeng Qiao, N. Qin, Xiaoping Qin, X. S. Qin, Zhonghua Qin, Jinfa Qiu, S. Q. Qu, K. H. Rashid, Christoph Florian Redmer, M. Richter, M. Ripka, Angelo Rivetti, Viktor Rodin, Manuel Dionisio Da Rocha Rolo, Gang Rong, Christoph Rosner, Marcel Andre Rump, Andrei V. Sarantsev, M. Savrié, Karin Schönning, Wei Shan, Xinyu Shan, M. Shao, Chengping Shen, P. X. Shen, X. Y. Shen, H. Y. Sheng, X. Shi, Xiaodong Shi, J. J. Song, Q. Q. Song, X. Y. Song, Stefano Sosio, C. Sowa, Stefano Spataro, Fengfei Sui, Gongxing Sun, J. F. Sun, Liang Sun, S. S. Sun, X. H. Sun, Y. J. Sun, Y. K. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, Y. T. Tan, C. J. Tang, G. Y. Tang, X. Tang, Viktor Thoren, Banzragch Tsednee, Ismail Uman, B. Wang, B. L. Wang, Chengwei Wang, D. Y. Wang, H. H. Wang, K. Wang, Liangliang Wang, L. S. Wang, M. Wang, M. Z. Wang, Meng Wang, P. L. Wang, R. M. Wang, Weiping Wang, X. Wang, Xiongfei Wang, X. L. Wang, Y. Wang, Y. F. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, Zongyuan Wang, T. Weber, D. H. Wei, P. Weidenkaff, H. W. Wen, Shuopin Wen, Ulrich Wiedner, Magnus Wolke, Linghui Wu, Lianjin Wu, Z. Wu, L. Xia, Y. Xia, S. Y. Xiao, Y. J. Xiao, Zhenjun Xiao, Y. G. Xie, Y. H. Xie, T. Y. Xing, X. A. Xiong, Q. L. Xiu, Guofa Xu, J. J. Xu, L. Xu, Q. J. Xu, Wei Xu, Xinping Xu, F. Yan, Liang Yan, W. B. Yan, Wencheng Yan, Y. H. Yan, H. J. Yang, Hongxun Yang, L. Yang, R. X. Yang, S. L. Yang, Youhua Yang, Yongxu Yang, Yifan Yang, Z. Q. Yang, M. Ye, Minghan Ye, J. H. Yin, Z. Y. You, Boxiang Yu, Chunxu Yu, J. S. Yu, Chang-Zheng Yuan, X. Q. Yuan, Ye Yuan, A. Yuncu, A. A. Zafar, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, Hongyu Zhang, J. Zhang, Jielei Zhang, Jingqing Zhang, Jiawei Zhang, Jianyong Zhang, J. Z. Zhang, K. Zhang, L. Zhang, Sifan Zhang, T. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Yateng Zhang, Yang Zhang, Yao Zhang, Yi Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, Jingyi Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, Ming-Gang Zhao, Q. Zhao, Shujun Zhao, T. C. Zhao, Yubin Zhao, Zhengguo Zhao, Alexey Zhemchugov, Bo Zheng, Jianping Zheng, Y. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, L. P. Zhou, Q. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, Xiaoyu Zhou, Xu Zhou, Aonan Zhu, J. Zhu, J. Zhu, K. Zhu, Kejun Zhu, S. H. Zhu, W. J. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Zian Zhu, J. Zhuang, B. S. Zou, Jiaheng Zou

• Using a sample of 1.31×109 J/ψ events collected by the BESIII detector at BEPCII during 2009 and 2012, we study the J/ψ→ωη′π+π− hadronic process. For the first time, we measure the branching ratio B(J/ψ→ωη′π+π−)=(1.12±0.02±0.13)×10−3. We search for the X(1835) state in the η′π+π− invariant mass spectra. No evidence is found and we estimate the upper limit on the branching fraction at 90% confidence level to be B(J/ψ→ωX(1835),X(1835)→η′π+π−)<6.2×10−5.