| Title | Evidence for the decays of Lambda(+)(C) -> Sigma(+) eta and Sigma(+) eta ' |
| Authors | Ablikim, M. Achasov, M. N. Ahmed, S. Albrecht, M. Alekseev, M. Amoroso, A. An, F. F. An, Q. Bai, Y. Bakina, O. Ferroli, R. Baldini Ban, Y. Begzsuren, K. Bennett, D. W. Bennett, J., V Berger, N. Bertani, M. Bettoni, D. Bianchi, F. Boyko, I Briere, R. A. Cai, H. Cai, X. Cakir, O. Calcaterra, A. Cao, G. F. Cetin, S. A. Chai, J. Chang, J. F. Chang, W. L. Chelkov, G. Chen, G. Chen, H. S. Chen, J. C. Chen, M. L. Chen, P. L. Chen, S. J. Chen, Y. B. Cheng, W. Cibinetto, G. Cossio, F. Dai, H. L. Dai, J. P. Dbeyssi, A. Dedovich, D. Deng, Z. Y. Denig, A. Denysenko, I Destefanis, M. De Mori, F. Ding, Y. Dong, C. Dong, J. Dong, L. Y. Dong, M. Y. Dou, Z. L. Du, S. X. Duan, P. F. Fan, J. Z. Fang, J. Fang, S. S. Fang, Y. Farinelli, R. Fava, L. Fegan, S. Feldbauer, F. Felici, G. Feng, C. Q. Fritsch, M. Fu, C. D. Fu, Y. Gao, Q. Gao, X. L. Gao, Y. Gao, Y. G. Gao, Z. Garillon, B. Garzia, I Gilman, A. Goetzen, K. Gong, L. Gong, W. X. Gradl, W. Greco, M. Gu, L. M. Gu, M. H. Gu, Y. T. Guo, A. Q. Guo, L. B. Guo, R. P. Guo, Y. P. Guskov, A. Haddadi, Z. Han, S. Hao, X. Q. Harris, F. A. He, K. L. Heinsius, F. H. Held, T. Heng, Y. K. Hou, Z. L. Hu, H. M. Hu, J. F. Hu, T. Hu, Y. Huang, G. S. Huang, J. S. Huang, X. T. Huang, X. Z. Huang, Z. L. Hussain, T. Huesken, N. Andersson, W. Ikegami Irshad, M. Ji, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Jiang, X. S. Jiang, X. Y. Jiao, J. B. Jiao, Z. Jin, D. P. Jin, S. Jin, Y. Johansson, T. Julin, A. Kalantar-Nayestanaki, N. Kang, X. S. Kavatsyuk, M. Ke, B. C. Keshk, I. K. Khan, T. Khoukaz, A. Kiese, P. Kiuchi, R. Kliemt, R. Koch, L. Kolcu, O. B. Kopf, B. Kornicer, M. Kuemmel, M. Kuessner, M. Kupsc, A. Kurth, M. Kuehn, W. Lange, J. S. Larin, P. Lavezzi, L. Leiber, S. Leithoff, H. Li, C. Li, Cheng Li, D. M. Li, F. Li, F. Y. Li, G. Li, H. B. Li, H. J. Li, J. C. Li, J. W. Li, Ke Li, Lei Li, P. L. Li, P. R. Li, Q. Y. Li, T. Li, W. D. Li, W. G. Li, X. L. Li, X. N. Li, X. Q. Li, Z. B. Liang, H. Liang, Y. F. Liang, Y. T. Liao, G. R. Liao, L. Z. Libby, J. Lin, C. X. Lin, D. X. Liu, B. Liu, B. J. Liu, C. X. Liu, D. Liu, D. Y. Liu, F. H. 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, Z. A. Liu, Zhiqing Long, Y. F. Lou, X. C. Lu, H. J. Lu, J. D. Lu, J. G. Lu, Y. Lu, Y. P. Luo, C. L. Luo, M. X. Luo, T. Luo, X. L. Lusso, S. Lyu, X. R. Ma, F. C. Ma, H. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, X. N. Ma, X. X. Ma, X. Y. Ma, Y. M. Maas, F. E. Maggiora, M. Maldaner, S. Malik, Q. A. Mangoni, A. Mao, Y. J. Mao, Z. P. Marcello, S. Meng, Z. X. Messchendorp, J. G. Mezzadri, G. Min, J. Min, T. J. Mitchell, R. E. Mo, X. H. Mo, Y. J. Morales, C. Morales Muchnoi, N. Yu Muramatsu, H. Mustafa, A. Nakhoul, S. Nefedov, Y. Nerling, F. Nikolaev, I. B. Ning, Z. Nisar, S. Niu, S. L. Olsen, S. L. Ouyang, Q. Pacetti, S. Pan, Y. Papenbrock, M. Patteri, P. Pelizaeus, M. Pellegrino, J. Peng, H. P. Peters, K. Pettersson, J. Ping, J. L. Ping, R. G. Pitka, A. Poling, R. Prasad, V Qi, H. R. Qi, M. Qi, T. Y. Qian, S. Qiao, C. F. Qin, N. Qin, X. S. Qin, Z. H. Qiu, J. F. Qu, S. Q. Rashid, K. H. Redmer, C. F. Richter, M. Ripka, M. Rivetti, A. Rolo, M. Rong, G. Rosner, Ch Rump, M. Sarantsev, A. Savrie, M. Schoenning, K. Shan, W. Shan, X. Y. Shao, M. Shen, C. P. Shen, P. X. Shen, X. Y. Sheng, H. Y. Shi, X. Song, J. J. Song, W. M. Song, X. Y. Sosio, S. Sowa, C. Spataro, S. Sun, G. X. Sun, J. F. Sun, L. Sun, S. S. Sun, X. H. Sun, Y. J. Sun, Y. K. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Tan, Y. T. Tang, C. J. Tang, G. Y. Tang, X. Tapan, I Tiemens, M. Tsednee, B. Uman, I Wang, B. Wang, B. L. Wang, C. W. Wang, D. Y. Wang, Dan Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, Meng Wang, P. Wang, P. L. Wang, W. P. Wang, X. F. Wang, Y. Wang, Y. F. Wang, Z. Wang, Z. G. Wang, Z. Y. Wang, Zongyuan Weber, T. Wei, D. H. Weidenkaff, P. Wen, S. P. Wiedner, U. Wolke, M. Wu, L. H. Wu, L. J. Wu, Z. Xia, L. Xia, X. Xia, Y. Xiao, D. Xiao, Y. J. Xiao, Z. J. Xie, Y. 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| Affiliation | Inst High Energy Phys, Beijing 100049, Peoples R China Beihang Univ, Beijing 100191, Peoples R China Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China Bochum Ruhr Univ, D-44780 Bochum, Germany Carnegie Mellon Univ, Pittsburgh, PA 15213 USA Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China COMSATS Inst Informat Technol, Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan Fudan Univ, Shanghai 200443, Peoples R China GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany Guangxi Normal Univ, Guilin 541004, Peoples R China Guangxi Univ, Nanning 530004, Peoples R China Hangzhou Normal Univ, Hangzhou 310036, Zhejiang, Peoples R China Helmholtz Inst Mainz, Johann Joach Becher Weg 45, D-55099 Mainz, Germany Henan Normal Univ, Xinxiang 453007, Henan, Peoples R China Henan Univ Sci & Technol, Luoyang 471003, Peoples R China Huangshan Coll, Huangshan 245000, Peoples R China Hunan Normal Univ, Changsha 410081, Hunan, Peoples R China Hunan Univ, Changsha 410082, Hunan, Peoples R China Indian Inst Technol Madras, Chennai 600036, Tamil Nadu, India Indiana Univ, Bloomington, IN 47405 USA Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy Ist Nazl Fis Nucl, I-06100 Perugia, Italy Univ Perugia, I-06100 Perugia, Italy Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy Univ Ferrara, I-44122 Ferrara, Italy Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongolia Johannes Gutenberg Univ Mainz, Johann Joach Becher Weg 45, D-55099 Mainz, Germany Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China Liaoning Univ, Shenyang 110036, Liaoning, Peoples R China Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China Nankai Univ, Tianjin 300071, Peoples R China Peking Univ, Beijing 100871, Peoples R China Seoul Natl Univ, Seoul 151747, South Korea Shandong Univ, Jinan 250100, Shandong, Peoples R China Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China Shanxi Univ, Taiyuan 030006, Shanxi, Peoples R China Sichuan Univ, Chengdu 610064, Sichuan, Peoples R China Soochow Univ, Suzhou 215006, Peoples R China Southeast Univ, Nanjing 211100, Jiangsu, Peoples R China State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China Tsinghua Univ, Beijing 100084, Peoples R China Ankara Univ, TR-06100 Ankara, Turkey Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey Uludag Univ, TR-16059 Bursa, Turkey Near East Univ, Mersin 10, Nicosia, North Cyprus, Turkey Univ Chinese Acad Sci, Beijing 100049, Peoples R China Univ Hawaii, Honolulu, HI 96822 USA Univ Jinan, Jinan 250022, Shandong, Peoples R China Univ Minnesota, Minneapolis, MN 55455 USA Univ Munster, Wilhelm Klemm Str 9, D-48149 Munster, Germany Univ Sci & Technol Liaoning, Anshan 114051, Peoples R China Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China Univ South China, Hengyang 421001, Peoples R China Univ Punjab, Lahore 54590, Pakistan Univ Turin, I-110125 Turin, Italy Univ Piemonte Orientale, I-115121 Alessandria, Italy Ist Nazl Fis Nucl, I-10125 Turin, Italy Uppsala Univ, Box 516, SE-75120 Uppsala, Sweden Wuhan Univ, Wuhan 430072, Hubei, Peoples R China Xinyang Normal Univ, Xinyang 464000, Peoples R China Zhejiang Univ, Hangzhou 310027, Zhejiang, Peoples R China Zhengzhou Univ, Zhengzhou 450001, Henan, Peoples R China Bogazici Univ, TR-34342 Istanbul, Turkey Moscow Inst Phys & Technol, Moscow 141700, Russia Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia Novosibirsk State Univ, Novosibirsk 630090, Russia NRC Kurchatov Inst, PNPI, Gatchina 188300, Russia Istanbul Arel Univ, TR-34295 Istanbul, Turkey Goethe Univ Frankfurt, D-60323 Frankfurt, Germany Minist Educ, Key Lab Particle Phys Astrophys & Cosmol, Shanghai 200240, Peoples R China Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China Inst Nucl & Particle Phys, Shanghai 200240, Peoples R China Govt Coll Women Univ, Sialkot 51310, Punjab, Pakistan Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200443, Peoples R China Fudan Univ, Inst Modern Phys, Shanghai 200443, Peoples R China Ctr Underground Phys, Inst Basic Sci, Daejeon 34126, South Korea Harvard Univ, Dept Phys, Cambridge, MA 02138 USA |
| Keywords | charmed baryon Lambda(+)(C) decays branching fractions |
| Issue Date | 2019 |
| Publisher | CHINESE PHYSICS C |
| Abstract | We study the hadronic decays of Lambda(+)(C) to the final states Sigma(+) eta and Sigma(+) eta', 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 Lambda(+)(C) -> Sigma(+) eta and Sigma(+) eta' with statistical significance of and, respectively. Normalizing to the reference decays Lambda(+)(C) -> Sigma(+) pi(0) and Sigma(+) omega, we obtain the ratios of the branching fractions B(Lambda(+)(C) -> Sigma(+) eta)/B(Lambda(+)(C) -> Sigma(+) pi(0)) and B(Lambda(+)(C) -> Sigma(+) eta')/B(Lambda(+)(C) -> Sigma(+) omega) to be 0.35 +/- 0.16 +/- 0.02 and 0.86 +/- 0.34 +/- 0.04, respectively. The upper limits at the 90% confidence level are set to be B(Lambda(+)(C) -> Sigma(+) eta)/B(Lambda(+)(C) -> Sigma(+) pi(0)) < 0.58 and B(Lambda(+)(C) -> Sigma(+) eta')/B(Lambda(+)(C) -> Sigma(+) omega) < 1.2. Using BESIII measurements of the branching fractions of the reference decays, we determine B(Lambda(+)(C) -> Sigma(+) eta) = (0.41 +/- 0.19 +/- 0.05)% (<0.68%) and B(Lambda(+)(C) -> Sigma(+) eta') = (1.34 +/- 0.53 +/- 0.19)% (<1.9%). Here, the first uncertainties are statistical and the second systematic. The obtained branching fraction of Lambda(+)(C) -> Sigma(+) eta is consistent with the previous measurement, and the branching fraction of Lambda(+)(C) -> Sigma(+) eta' is measured for the first time. |
| URI | http://hdl.handle.net/20.500.11897/546333 |
| ISSN | 1674-1137 |
| DOI | 10.1088/1674-1137/43/8/083002 |
| Indexed | SCI(E) EI |
| Appears in Collections: | 待认领 |
