Evidence for the decays of Λ⁺c → Σ⁺η and Σ⁺η′

Medina Ablikim, Mikhail N. Achasov, Samer Ahmed, Malte Albrecht, M. Alekseev, Antonio Amoroso, Fenfen An, Qi An, Y. Bai, Olga Bakina, Rinaldo Baldini Ferroli, Yong Ban, Khurelbaatar Begzsuren, D. W. Bennett, Jake V. Bennett, Niklaus Berger, Monica Bertani, Diego Bettoni, Fabrizio Bianchi, Igor R. Boyko, Roy A. Briere, H. Cai, Xiao Cai, O. Cakir, Alessandro Calcaterra, G. F. Cao, Serkant Ali Çetin, J. Chai, Jinfan Chang, W. L. Chang, Gueorgui A. Chelkov, G. Chen, Hesheng Chen, J. C. Chen, M. L. Chen, P. L. Chen, S. J. Chen, Yuanbo Chen, W. Cheng, Gianluigi Cibinetto, Fabio Cossio, Hongliang Dai, J. P. Dai, Alaa Dbeyssi, Dmitri V. Dedovich, Ziyan Deng, Achim Denig, Igor Denysenko, Marco Giovanni Maria Destefanis, F. De Mori, Y. Ding, C. Dong, J. Dong, Liaoyuan Dong, Mingyi Dong, Z. L. Dou, Shuxian Du, P. F. Duan, J. Z. Fan, J. Fang, Shuangshi Fang, Y. Fang, Riccardo Farinelli, Luciano Fava, S. Fegan, Florian Feldbauer, Giulietto Felici, C. Q. Feng, Miriam Fritsch, Chengdong Fu, Ying Fu, Q. Gao, X. L. Gao, Y. Gao, Y. G. Gao, Z. Gao, B. Garillon, I. Garzia, Alexander Gilman, Klaus Goetzen, L. Gong, Wenxuan Gong, Wolfgang Gradl, M. Greco, L. M. Gu, Minhao Gu, Y. T. Gu, Aiqiang Guo, L. B. Guo, R. P. Guo, Yuping Guo, Alexey Guskov, Z. Haddadi, S. Han, Xiqing Hao, F. A. Harris, K. L. He, Fritz-Herbert Heinsius, T. Held, Yuekun Heng, Zhilong Hou, Haiming Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, J. S. Huang, X. T. Huang, X. Z. Huang, Z. L. Huang, Tahir Hussain, N. Hü sken, Walter Ikegami Andersson, M Irshad, Quan Ji, Qingping Ji, X. B. Ji, X. L. Ji, Xiaoshan Jiang, X. Y. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, Shan Jin, Y. Jin, Tord Johansson, A. Julin, Nasser Kalantar-Nayestanaki, Xiaolin Kang, Myroslav O. Kavatsyuk, Bai-Cian Ke, Iman Keshk, T. Khan, Alfons Khoukaz, P. Kiese, Ryuta Kiuchi, Ralf Kliemt, Leonard Koch, Onur Bugra Kolcu, Bertram Kopf, M. Kornicer, M. Kuemmel, Meike Küßner, Andrzej Kupsc, M. Kurth, Wolfgang Kühn, Jens Sören Lange, Paul Larin, Lia Lavezzi, S. Leiber, H. Leithoff, 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, Lei Li, P. L. Li, Peirong Li, Q. Y. Li, T. Li, Weidong Li, Weiguo Li, X. L. Li, X. N. Li, X. Q. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, Guangrui Liao, L. Z. Liao, J. Libby, C. X. Lin, D. X. 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. L Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, Q. Liu, S. B. Liu, X. 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, Tao Luo, X. L. Luo, S. 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, H. 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, M. Papenbrock, P. Patteri, Marc Pelizäus, J. Pellegrino, H. P. Peng, Klaus Peters, J. Pettersson, J. L. Ping, R. G. Ping, A. Pitka, Ronald Poling, Vindhyawasini Prasad, H. R. Qi, Ming Qi, Tianyu Qi, S. Qian, Congfeng Qiao, N. Qin, X. S. Qin, Zhonghua Qin, Jinfa Qiu, S. Q. Qu, K. H. Rashid, Christoph Florian Redmer, M. Richter, M. Ripka, Angelo Rivetti, 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, J. J. Song, Weimin Song, X. Y. Song, Stefano Sosio, C. Sowa, Stefano Spataro, 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, I. Tapan, M. Tiemens, B. Tsednee, Ismail Uman, B. Wang, B. L. Wang, C. W. Wang, D. Y. Wang, Dan Wang, K. Wang, Liangliang Wang, L. S. Wang, M. Wang, Meng Wang, P. Wang, P. L. Wang, Weiping Wang, Xiongfei Wang, Y. Wang, Y. F. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, Zongyuan Wang, T. Weber, D. H. Wei, P. Weidenkaff, Shuopin Wen, Ulrich Wiedner, Magnus Wolke, Linghui Wu, Lianjin Wu, Z. Wu, L. Xia, X. Xia, Y. Xia, D. Xiao, Y. J. Xiao, Zhenjun Xiao, Y. G. Xie, Y. H. Xie, X. A. Xiong, Q. L. Xiu, Guofa Xu, J. J. Xu, L. Xu, Q. J. Xu, Q. N. Xu, Xinping Xu, F. Yan, Liang Yan, W. B. Yan, W. C. Yan, Y. H. Yan, H. J. Yang, Hongxun Yang, L. Yang, R. X. Yang, S. L. Yang, Y. H. Yang, Yongxu Yang, Yifan Yang, Z. Q. Yang, M. Ye, Minghan Ye, J. H. Yin, Z. Y. You, Boxiang Yu, C. X. Yu, J. S. Yu, Chang-Zheng Yuan, Y. 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, J. L. Zhang, J. Q. Zhang, J. W. Zhang, Jianyong Zhang, J. Z. Zhang, K. Zhang, L. Zhang, S. F. Zhang, T. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Yateng Zhang, Yang Zhang, Yao Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, J. Y. 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, W. J. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, Q. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Xiaoyu Zhou, Xu Zhou, A. N. Zhu, J. Zhu, J. Zhu, K. Zhu, Kejun Zhu, S. Zhu, S. H. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Zian Zhu, J. Zhuang, B. S. Zou, Jiaheng Zou

  • We study the hadronic decays of Λ+c to the final states Σ+η and Σ+η′, using an e+e− annihilation data sample of 567 pb−1 taken at a center-of-mass energy of 4.6 GeV with the BESIII detector at the BEPCII collider. We find evidence for the decays Λ+c→Σ+η and Σ+η′ with statistical significance of 2.5σ and 3.2σ, respectively. Normalizing to the reference decays Λ+c→Σ+π0 and Σ+ω, we obtain the ratios of the branching fractions B(Λ+c→Σ+η)B(Λ+c→Σ+π0) and B(Λ+c→Σ+η′)B(Λ+c→Σ+ω) to be 0.35±0.16±0.03 and 0.86±0.34±0.07, respectively. The upper limits at the 90\% confidence level are set to be B(Λ+c→Σ+η)B(Λ+c→Σ+π0)<0.58 and B(Λ+c→Σ+η′)B(Λ+c→Σ+ω)<1.2. Using BESIII measurements of the branching fractions of the reference decays, we determine B(Λ+c→Σ+η)=(0.41±0.19±0.05)% (<0.68%) and B(Λ+c→Σ+η′)=(1.34±0.53±0.21)% (<1.9%). Here, the first uncertainties are statistical and the second systematic. The obtained branching fraction of Λ+c→Σ+η is consistent with the previous measurement, and the branching fraction of Λ+c→Σ+η′ is measured for the first time.

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Author:Medina AblikimORCiD, Mikhail N. AchasovORCiD, Samer AhmedGND, Malte AlbrechtORCiDGND, M. Alekseev, Antonio AmorosoORCiD, Fenfen AnORCiD, Qi An, Y. Bai, Olga Bakina, Rinaldo Baldini Ferroli, Yong BanORCiD, Khurelbaatar Begzsuren, D. W. Bennett, Jake V. BennettORCiD, Niklaus BergerORCiDGND, Monica BertaniORCiD, Diego BettoniORCiD, Fabrizio BianchiORCiD, Igor R. BoykoORCiD, Roy A. BriereORCiD, H. Cai, Xiao CaiORCiD, O. Cakir, Alessandro CalcaterraORCiD, G. F. Cao, Serkant Ali ÇetinORCiD, J. Chai, Jinfan ChangORCiD, W. L. Chang, Gueorgui A. ChelkovORCiD, G. Chen, Hesheng ChenORCiD, J. C. Chen, M. L. Chen, P. L. Chen, S. J. Chen, Yuanbo ChenORCiD, W. Cheng, Gianluigi CibinettoORCiD, Fabio CossioORCiD, Hongliang DaiORCiD, J. P. Dai, Alaa DbeyssiORCiD, Dmitri V. Dedovich, Ziyan DengORCiD, Achim DenigORCiD, Igor Denysenko, Marco Giovanni Maria DestefanisORCiDGND, F. De Mori, Y. Ding, C. Dong, J. Dong, Liaoyuan DongORCiD, Mingyi DongORCiD, Z. L. Dou, Shuxian Du, P. F. Duan, J. Z. Fan, J. Fang, Shuangshi FangORCiD, Y. Fang, Riccardo FarinelliORCiD, Luciano FavaORCiD, S. Fegan, Florian FeldbauerGND, Giulietto FeliciORCiD, C. Q. Feng, Miriam FritschORCiDGND, Chengdong FuORCiD, Ying Fu, Q. Gao, X. L. Gao, Y. Gao, Y. G. Gao, Z. Gao, B. Garillon, I. Garzia, Alexander GilmanORCiD, Klaus GoetzenORCiDGND, L. Gong, Wenxuan GongORCiD, Wolfgang GradlORCiDGND, M. Greco, L. M. Gu, Minhao GuORCiD, Y. T. Gu, Aiqiang GuoORCiD, L. B. Guo, R. P. Guo, Yuping GuoORCiD, Alexey GuskovORCiD, Z. Haddadi, S. Han, Xiqing Hao, F. A. Harris, K. L. He, Fritz-Herbert HeinsiusORCiDGND, T. Held, Yuekun HengORCiD, Zhilong HouORCiD, Haiming HuORCiD, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, J. S. Huang, X. T. Huang, X. Z. Huang, Z. L. Huang, Tahir HussainORCiD, N. Hü sken, Walter Ikegami AnderssonORCiD, M Irshad, Quan JiORCiD, Qingping JiORCiD, X. B. Ji, X. L. Ji, Xiaoshan JiangORCiD, X. Y. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, Shan JinORCiD, Y. Jin, Tord JohanssonORCiD, A. Julin, Nasser Kalantar-NayestanakiORCiD, Xiaolin KangORCiD, Myroslav O. Kavatsyuk, Bai-Cian KeORCiD, Iman KeshkGND, T. Khan, Alfons KhoukazORCiDGND, P. Kiese, Ryuta Kiuchi, Ralf KliemtORCiD, Leonard KochGND, Onur Bugra KolcuORCiD, Bertram KopfGND, M. Kornicer, M. Kuemmel, Meike KüßnerORCiDGND, Andrzej KupscORCiD, M. Kurth, Wolfgang KühnORCiD, Jens Sören LangeORCiDGND, Paul LarinGND, Lia LavezziORCiD, S. Leiber, H. Leithoff, C. Li, Cheng Li, D. M. Li, F. Li, F. Y. Li, G. Li, Haibo LiORCiD, Huijing LiORCiD, J. C. Li, J. W. Li, Ke Li, Lei LiORCiD, P. L. Li, Peirong LiORCiD, Q. Y. Li, T. Li, Weidong LiORCiD, Weiguo LiORCiD, X. L. Li, X. N. Li, X. Q. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, Guangrui LiaoORCiD, L. Z. Liao, J. Libby, C. X. Lin, D. X. Lin, B. Liu, B. J. Liu, C. X. Liu, D. Liu, D. Y. Liu, Fu-Hu LiuORCiD, Fang Liu, Feng Liu, H. B. Liu, H. L Liu, H. M. Liu, Huanhuan LiuORCiD, Huihui Liu, J. B. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke LiuORCiD, Q. Liu, S. B. Liu, X. Liu, Y. B. Liu, Zhen-An LiuORCiDGND, Zhiqing LiuORCiD, Y. F. Long, Xinchou LouORCiD, H. J. Lu, J. D. Lu, Junguang LuORCiD, Y. Lu, Yunpeng LuORCiD, Chenglin LuoORCiD, M. X. Luo, Tao LuoORCiD, X. L. Luo, S. Lusso, Xiao-Rui LyuORCiD, Fengcai Ma, Hailong MaORCiD, Lianliang MaORCiD, M. M. Ma, Qiumei MaORCiD, X. N. Ma, X. X. Ma, Xiaoyan MaORCiD, Y. M. Ma, Frank E. MaasORCiDGND, Marco MaggioraORCiD, Stephan MaldanerGND, Qadeer Afzal Malik, Alessio MangoniORCiD, Yajun Mao, Zepu Mao, Simonetta MarcelloORCiD, Z. X. Meng, Johannes Gerhardus MesschendorpORCiDGND, Giulio MezzadriORCiD, J. Min, T. J. Min, Ryan Edward Mitchell, Xiaohu MoORCiD, Y. J. Mo, C. Morales Morales, Nikolai Yu. MuchnoiORCiDGND, H. Muramatsu, A. Mustafa, Simon NakhoulGND, Yury NefedovORCiD, Frank NerlingORCiD, Ivan Borisovich NikolaevORCiD, Z. Ning, Shabana Nisar, S. L. Niu, Stephen L. OlsenORCiD, Qun OuyangORCiD, Simone PacettiORCiD, Y. Pan, M. Papenbrock, P. Patteri, Marc PelizäusGND, J. Pellegrino, H. P. Peng, Klaus PetersORCiDGND, J. Pettersson, J. L. Ping, R. G. Ping, A. Pitka, Ronald PolingORCiD, Vindhyawasini PrasadORCiD, H. R. Qi, Ming QiORCiD, Tianyu QiORCiD, S. Qian, Congfeng Qiao, N. Qin, X. S. Qin, Zhonghua QinORCiD, Jinfa QiuORCiD, S. Q. Qu, K. H. Rashid, Christoph Florian RedmerORCiDGND, M. Richter, M. Ripka, Angelo RivettiORCiD, Manuel Dionisio Da Rocha RoloORCiD, Gang RongORCiD, Christoph RosnerORCiDGND, Marcel Andre RumpGND, Andrei V. SarantsevGND, M. Savrié, Karin SchönningORCiD, Wei ShanORCiD, Xinyu ShanORCiD, M. Shao, Chengping ShenORCiD, P. X. Shen, X. Y. Shen, H. Y. Sheng, X. Shi, J. J. Song, Weimin SongORCiD, X. Y. Song, Stefano SosioORCiD, C. Sowa, Stefano SpataroORCiD, Gongxing SunORCiD, J. F. Sun, Liang SunORCiD, 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, I. Tapan, M. Tiemens, B. Tsednee, Ismail UmanORCiDGND, B. Wang, B. L. Wang, C. W. Wang, D. Y. Wang, Dan Wang, K. Wang, Liangliang WangORCiD, L. S. Wang, M. Wang, Meng WangORCiD, P. Wang, P. L. Wang, Weiping WangORCiD, Xiongfei WangORCiD, Y. Wang, Y. F. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, Zongyuan WangORCiD, T. Weber, D. H. Wei, P. Weidenkaff, Shuopin WenORCiD, Ulrich WiednerORCiDGND, Magnus WolkeGND, Linghui WuORCiD, Lianjin WuORCiD, Z. Wu, L. Xia, X. Xia, Y. Xia, D. Xiao, Y. J. Xiao, Zhenjun XiaoORCiD, Y. G. Xie, Y. H. Xie, X. A. Xiong, Q. L. Xiu, Guofa XuORCiD, J. J. Xu, L. Xu, Q. J. Xu, Q. N. Xu, Xinping XuORCiD, F. Yan, Liang YanORCiD, W. B. Yan, W. C. Yan, Y. H. Yan, H. J. Yang, Hongxun YangORCiD, L. Yang, R. X. Yang, S. L. Yang, Y. H. Yang, Yongxu Yang, Yifan YangORCiD, Z. Q. Yang, M. Ye, Minghan Ye, J. H. Yin, Z. Y. You, Boxiang YuORCiD, C. X. Yu, J. S. Yu, Chang-Zheng YuanORCiD, Y. Yuan, A. Yuncu, A. A. Zafar, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, Hongyu ZhangORCiD, J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, Jianyong ZhangORCiD, J. Z. Zhang, K. Zhang, L. Zhang, S. F. Zhang, T. J. Zhang, X. Y. Zhang, Y. Zhang, Y. H. Zhang, Yateng ZhangORCiD, Yang Zhang, Yao Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, J. Y. Zhao, J. Z. Zhao, Lei ZhaoORCiD, Ling Zhao, Ming-Gang ZhaoORCiD, Q. Zhao, Shujun Zhao, T. C. Zhao, Yubin ZhaoORCiD, Zhengguo ZhaoORCiD, Alexey ZhemchugovORCiD, Bo ZhengORCiD, Jianping ZhengORCiD, W. J. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, Q. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Xiaoyu Zhou, Xu Zhou, A. N. Zhu, J. Zhu, J. Zhu, K. Zhu, Kejun ZhuORCiD, S. Zhu, S. H. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Zian ZhuORCiD, J. Zhuang, B. S. Zou, Jiaheng ZouORCiD
URN:urn:nbn:de:hebis:30:3-848420
DOI:https://doi.org/10.1088/1674-1137/43/8/083002
ISSN:2058-6132
ArXiv Id:http://arxiv.org/abs/1811.08028
Parent Title (English):Chinese physics. C, High energy physics and nuclear physics
Publisher:IOP Publishing
Place of publication:Bristol [u.a.]
Document Type:Article
Language:English
Date of Publication (online):2019/07/03
Date of first Publication:2019/07/03
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:BESIII Collaboration
Release Date:2024/07/19
Tag:branching fractions; charmed baryon; decays
Volume:43
Issue:8, 083002
Article Number:083002
Page Number:9
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International