兰州大学机构库
Observation of the Doubly Cabibbo-Suppressed Decay D+ →k+π+π-π0 and Evidence for D+ →k+ω
2020-10-01
Source PublicationPhysical Review Letters
Volume125
Issue14
PublisherAmerican Physical Society
AbstractUsing 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.
KeywordGermanium compoundsA-center Branching fractions Cabibbo-suppressed decays CP violations Mixing angle Statistical significance
DOI10.1103/PhysRevLett.125.141802
Indexed ByEI
Language英语
ISSN00319007
EI Accession Number20204309395054
EI KeywordsDecay (organic)
EI Classification Number801.2 Biochemistry
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/441146
Collection兰州大学
Affiliation1.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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