| Observation of the Singly Cabibbo Suppressed Decay ?c+ ?np+ | |
| 2022-04-08 | |
| Source Publication | Physical Review Letters
 |
| ISSN | 0031-9007 |
| Volume | 128Issue:14 |
| Abstract | The singly Cabibbo-suppressed decay ?c+?np+ is observed for the first time with a statistical significance of 7.3s by using 3.9 fb-1 of e+e-collision data collected at center-of-mass energies between 4.612 and 4.699 GeV with the BESIII detector at BEPCII. The branching fraction of ?c+?np+ is measured to be (6.6±1.2stat±0.4syst)×10-4. By taking the upper limit of branching fractions of ?c+?pp0 from the Belle experiment, the ratio of branching fractions between ?c+?np+ and ?c+?pp0 is calculated to be larger than 7.2 at the 90% confidence level, which disagrees with most predictions of the available phenomenological models. In addition, the branching fractions of the Cabibbo-favored decays ?c+?p+ and ?c+?0p+ are measured to be (1.31±0.08stat±0.05syst)×10-2 and (1.22±0.08stat±0.07syst)×10-2, respectively, which are consistent with previous results. © 2022 authors. Published by the American Physical Society. |
| Keyword | Atomic physics Germanium compounds Belle experiments Branching fractions Cabibbo-suppressed decays Center-of-mass energies Centre-of-mass energies Confidence levels Phenomenological models Statistical significance Upper limits |
| Publisher | American Physical Society |
| DOI | 10.1103/PhysRevLett.128.142001 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | 20222012103174 |
| EI Keywords | Germanium alloys |
| EI Classification Number | 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals ; 931.3 Atomic and Molecular Physics |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.lzu.edu.cn/handle/262010/481916 |
| Collection | 兰州大学 |
| Affiliation | 1.Institute Of High Energy Physics, Beijing; 100049, China; 2.Beihang University, Beijing; 100191, China; 3.Beijing Institute Of Petrochemical Technology, Beijing; 102617, China; 4.Bochum Ruhr-University, Bochum; D-44780, Germany; 5.Carnegie Mellon University, Pittsburgh; PA; 15213, United States; 6.Central China Normal University, Wuhan; 430079, China; 7.China Center Of Advanced Science And Technology, Beijing; 100190, China; 8.Comsats University Islamabad, Lahore Campus, Defence Road, Off Raiwind Road, Lahore; 54000, Pakistan; 9.Fudan University, Shanghai; 200443, China; 10.G. I. Budker Institute Of Nuclear Physics Sb Ras (BINP), Novosibirsk; 630090, Russia; 11.Gsi Helmholtzcentre For Heavy Ion Research GmbH, Darmstadt; D-64291, Germany; 12.Guangxi Normal University, Guilin; 541004, China; 13.Hangzhou Normal University, Hangzhou; 310036, China; 14.Helmholtz Institute Mainz, Staudinger Weg 18, Mainz; D-55099, Germany; 15.Henan Normal University, Xinxiang; 453007, China; 16.Henan University Of Science And Technology, Luoyang; 471003, China; 17.Henan University Of Technology, Zhengzhou; 450001, China; 18.Huangshan College, Huangshan; 245000, China; 19.Hunan Normal University, Changsha; 410081, China; 20.Hunan University, Changsha; 410082, China; 21.Indian Institute Of Technology Madras, Chennai; 600036, India; 22.Indiana University, Bloomington; IN; 47405, United States; 23.Infn Laboratori Nazionali Di Frascati, Frascati; I-00044, Italy; 24.Infn Sezione Di Perugia, Perugia; I-06100, Italy; 25.University Of Perugia, Perugia; I-06100, Italy; 26.Infn Sezione Di Ferrara, Ferrara; I-44122, Italy; 27.University Of Ferrara, Ferrara; I-44122, Italy; 28.Institute Of Modern Physics, Lanzhou; 730000, China; 29.Institute Of Physics And Technology, Peace Avenue 54b, Ulaanbaatar; 13330, Mongolia; 30.Jilin University, Changchun; 130012, China; 31.Johannes Gutenberg University Of Mainz, Johann-Joachim-Becher-Weg 45, Mainz; D-55099, Germany; 32.Joint Institute For Nuclear Research, Moscow Region, Dubna; 141980, Russia; 33.Justus-Liebig-Universitaet Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen; D-35392, Germany; 34.Lanzhou University, Lanzhou; 730000, China; 35.Liaoning Normal University, Dalian; 116029, China; 36.Liaoning University, Shenyang; 110036, China; 37.Nanjing Normal University, Nanjing; 210023, China; 38.Nanjing University, Nanjing; 210093, China; 39.Nankai University, Tianjin; 300071, China; 40.National Centre For Nuclear Research, Warsaw; 02-093, Poland; 41.North China Electric Power University, Beijing; 102206, China; 42.Peking University, Beijing; 100871, China; 43.Qufu Normal University, Qufu; 273165, China; 44.Shandong Normal University, Jinan; 250014, China; 45.Shandong University, Jinan; 250100, China; 46.Shanghai Jiao Tong University, Shanghai; 200240, China; 47.Shanxi Normal University, Linfen; 041004, China; 48.Shanxi University, Taiyuan; 030006, China; 49.Sichuan University, Chengdu; 610064, China; 50.Soochow University, Suzhou; 215006, China; 51.South China Normal University, Guangzhou; 510006, China; 52.Southeast University, Nanjing; 211100, China; 53.State Key Laboratory Of Particle Detection And Electronics, Beijing; 100049, China; 54.Sun Yat-Sen University, Guangzhou; 510275, China; 55.Suranaree University Of Technology, University Avenue 111, Nakhon Ratchasima; 30000, Thailand; 56.Tsinghua University, Beijing; 100084, China; 57.Turkish Accelerator Center Particle Factory Group, Istinye University, Istanbul; 34010, Turkey; 58.Near East University, Nicosia, North Cyprus, Mersin; 10, Turkey; 59.University Of Chinese Academy Of Sciences, Beijing; 100049, China; 60.University Of Groningen, Groningen; NL-9747 AA, Netherlands; 61.University Of Hawaii, Honolulu; HI; 96822, United States; 62.University Of Jinan, Jinan; 250022, China; 63.University Of Manchester, Oxford Road, Manchester; M13 9PL, United Kingdom; 64.University Of Minnesota, Minneapolis; MN; 55455, United States; 65.University Of Muenster, Wilhelm-Klemm-Street 9, Muenster; 48149, Germany; 66.University Of Oxford, Keble Rd, Oxford; OX13RH, United Kingdom; 67.University Of Science And Technology Liaoning, Anshan; 114051, China; 68.University Of Science And Technology Of China, Hefei; 230026, China; 69.University Of South China, Hengyang; 421001, China; 70.University Of The Punjab, Lahore; 54590, Pakistan; 71.University Of Turin, Turin; I-10125, Italy; 72.University Of Eastern Piedmont, Alessandria; I-15121, Italy; 73.Infn, Turin; I-10125, Italy; 74.Uppsala University, Box 516, Uppsala; SE-75120, Sweden; 75.Wuhan University, Wuhan; 430072, China; 76.Xinyang Normal University, Xinyang; 464000, China; 77.Yunnan University, Kunming; 650500, China; 78.Zhejiang University, Hangzhou; 310027, China; 79.Zhengzhou University, Zhengzhou; 450001, China; 80.The Moscow Institute Of Physics And Technology, Moscow; 141700, Russia; 81.The Novosibirsk State University, Novosibirsk; 630090, Russia; 82.The Nrc Kurchatov Institute, Pnpi, Gatchina; 188300, Russia; 83.Goethe University Frankfurt, Frankfurt am Main; 60323, Germany; 84.Key Laboratory For Particle Physics, Astrophysics And Cosmology, Ministry Of Education, Shanghai Key Laboratory For Particle Physics And Cosmology, Institute Of Nuclear And Particle Physics, Shanghai; 200240, China; 85.Key Laboratory Of Nuclear Physics And Ion-beam Application (MOE), Institute Of Modern Physics, Fudan University, Shanghai; 200443, China; 86.Harvard University, Department Of Physics, Cambridge; MA; 02138, United States; 87.State Key Laboratory Of Nuclear Physics And Technology, Peking University, Beijing; 100871, China |
| Recommended Citation GB/T 7714 | Ablikim, M.,Achasov, M.N.,Adlarson, P.,et al. Observation of the Singly Cabibbo Suppressed Decay ?c+ ?np+[J]. Physical Review Letters,2022,128(14). |
| APA | Ablikim, M..,Achasov, M.N..,Adlarson, P..,Ahmed, S..,Albrecht, M..,...&Larin, P..(2022).Observation of the Singly Cabibbo Suppressed Decay ?c+ ?np+.Physical Review Letters,128(14). |
| MLA | Ablikim, M.,et al."Observation of the Singly Cabibbo Suppressed Decay ?c+ ?np+".Physical Review Letters 128.14(2022). |
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