| Observation of the Doubly Cabibbo-Suppressed Decay D+ →k+π+π-π0 and Evidence for D+ →k+ω | |
| 2020-10-01 | |
| Source Publication | Physical Review Letters |
| Volume | 125 |
| Issue | 14 |
| Publisher | American Physical Society |
| Abstract | Using 2.93 fb-1 of e+e-collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the doubly Cabibbo-suppressed decay D+→K+π+π-π0 is reported. After removing decays that contain narrow intermediate resonances, including D+→K+η, D+→K+ω, and D+→K+φ, the branching fraction of the decay D+→K+π+π-π0 is measured to be (1.130.08stat0.03syst)×10-3. The ratio of branching fractions of D+→K+π+π-π0 over D+→K-π+π+π0 is found to be (1.810.15)%, which corresponds to (6.280.52)tan4C, where θC is the Cabibbo mixing angle. This ratio is significantly larger than the corresponding ratios for other doubly Cabibbo-suppressed decays. The asymmetry of the branching fractions of charge-conjugated decays DK0 is also determined, and no evidence for CP violation is found. In addition, the first evidence for the D+→K+ω decay, with a statistical significance of 3.3, is presented and the branching fraction is measured to be B(D+→K+ω)=(5.7-2.1+2.5stat0.2syst)×10-5. © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. |
| Keyword | Germanium compoundsA-center Branching fractions Cabibbo-suppressed decays CP violations Mixing angle Statistical significance |
| DOI | 10.1103/PhysRevLett.125.141802 |
| Indexed By | EI |
| Language | 英语 |
| ISSN | 00319007 |
| EI Accession Number | 20204309395054 |
| EI Keywords | Decay (organic) |
| EI Classification Number | 801.2 Biochemistry |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.lzu.edu.cn/handle/262010/441146 |
| 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.Guangxi University, Nanning; 530004, China; 14.Hangzhou Normal University, Hangzhou; 310036, China; 15.Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, Mainz; D-55099, Germany; 16.Henan Normal University, Xinxiang; 453007, China; 17.Henan University of Science and Technology, Luoyang; 471003, 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, Dubna, Moscow region; 141980, Russia; 33.Justus-Liebig-Universitaet Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, Giessen; D-35392, Germany; 34.KVI-CART, University of Groningen, Groningen; NL-9747 AA, Netherlands; 35.Lanzhou University, Lanzhou; 730000, China; 36.Liaoning Normal University, Dalian; 116029, China; 37.Liaoning University, Shenyang; 110036, China; 38.Nanjing Normal University, Nanjing; 210023, China; 39.Nanjing University, Nanjing; 210093, China; 40.Nankai University, Tianjin; 300071, China; 41.Peking University, Beijing; 100871, China; 42.Qufu Normal University, Qufu; 273165, China; 43.Shandong Normal University, Jinan; 250014, China; 44.Shandong University, Jinan; 250100, China; 45.Shanghai Jiao Tong University, Shanghai; 200240, China; 46.Shanxi Normal University, Linfen; 041004, China; 47.Shanxi University, Taiyuan; 030006, China; 48.Sichuan University, Chengdu; 610064, China; 49.Soochow University, Suzhou; 215006, China; 50.Southeast University, Nanjing; 211100, China; 51.State Key Laboratory of Particle Detection and Electronics, Beijing; 100049, China; 52.Sun Yat-Sen University, Guangzhou; 510275, China; 53.Tsinghua University, Beijing; 100084, China; 54.Ankara University, Tandogan,Ankara; 06100, Turkey; 55.Istanbul Bilgi University, Eyup,Istanbul; 34060, Turkey; 56.Uludag University, Bursa; 16059, Turkey; 57.Near East University, Mersin 10, Nicosia, North Cyprus, Turkey; 58.University of Chinese Academy of Sciences, Beijing; 100049, China; 59.University of Hawaii, Honolulu; HI; 96822, United States; 60.University of Jinan, Jinan; 250022, China; 61.University of Manchester, Oxford Road, Manchester; M13 9PL, United Kingdom; 62.University of Minnesota, Minneapolis, MN; 55455, United States; 63.University of Muenster, Wilhelm-Klemm-Str. 9, Muenster; 48149, Germany; 64.University of Oxford, Keble Road, Oxford; OX13RH, United Kingdom; 65.University of Science and Technology Liaoning, Anshan, 114051, China; 66.University of Science and Technology of China, Hefei; 230026, China; 67.University of South China, Hengyang; 421001, China; 68.University of the Punjab, Lahore; 54590, Pakistan; 69.University of Turin, Turin; I-10125, Italy; 70.University of Eastern Piedmont, Alessandria; I-15121, Italy; 71.Infn, Turin; I-10125, Italy; 72.Uppsala University, Box 516, Uppsala; SE-75120, Sweden; 73.Wuhan University, Wuhan; 430072, China; 74.Xinyang Normal University, Xinyang; 464000, China; 75.Zhejiang University, Hangzhou; 310027, China; 76.Zhengzhou University, Zhengzhou; 450001, China |
| Recommended Citation GB/T 7714 | Ablikim, M.,Achasov, M.N.,Adlarson, P.,et al. Observation of the Doubly Cabibbo-Suppressed Decay D+ →k+π+π-π0 and Evidence for D+ →k+ω[C]:American Physical Society,2020. |
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