Measurement of singly Cabibbo-suppressed decays D → ωππ

被引：1

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[10
,77
]}

Adlarson, P. ^{[70
]}

Ahmed, S. ^{[15
]}

Albrecht, M. ^{[4
]}

Amoroso, A. ^{[67
,69
]}

An, Q. ^{[51
,64
]}

Anita ^{[21
]}

Bai, Y. ^{[50
]}

Bakina, O. ^{[32
]}

Ferroli, R. Baldini ^{[23
]}

Balossino, I ^{[26
]}

Ban, Y. ^{[41
,87
]}

Begzsuren, K. ^{[29
]}

Bennett, J., V ^{[5
]}

Berger, N. ^{[31
]}

Bertani, M. ^{[23
]}

Bettoni, D. ^{[26
]}

Bianchi, F. ^{[67
,69
]}

Biernat, J. ^{[70
]}

Bloms, J. ^{[61
]}

Bortone, A. ^{[67
,69
]}

Boyko, I ^{[32
]}

Briere, R. A. ^{[5
]}

Cai, H. ^{[71
]}

Cai, X. ^{[1
,51
]}

Calcaterra, A. ^{[23
]}

Cao, G. F. ^{[1
,56
]}

Cao, N. ^{[1
,56
]}

Cetin, S. A. ^{[54
]}

Chang, J. F. ^{[1
,51
]}

Chang, W. L. ^{[1
,56
]}

Chelkov, G. ^{[32
,76
]}

Chen, D. Y. ^{[6
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,56
]}

Chen, M. L. ^{[1
,51
]}

Chen, S. J. ^{[39
]}

Chen, X. R. ^{[28
]}

Chen, Y. B. ^{[1
,51
]}

Cheng, W. ^{[69
]}

Cibinetto, G. ^{[26
]}

Cossio, F. ^{[69
]}

Cui, X. F. ^{[40
]}

Dai, H. L. ^{[1
,51
]}

Dai, J. P. ^{[45
,81
,82
,83
]}

Dai, X. C. ^{[1
,56
]}

Dbeyssi, A. ^{[15
]}

de Boer, R. B. ^{[4
]}

Dedovich, D. ^{[32
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Beihang Univ, Beijing 100191, Peoples R China

[3] Beijing Inst Petrochem Technol, Beijing 102617, Peoples R China

[4] Bochum Ruhr Univ, D-44780 Bochum, Germany

[5] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[6] Cent China Normal Univ, Wuhan 430079, Peoples R China

[7] China Ctr Adv Sci & Technol, Beijing 100190, Peoples R China

[8] COMSATS Univ Islamabad, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore 54000, Pakistan

[9] Fudan Univ, Shanghai 200443, Peoples R China

[10] GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia

[11] GSI Helmholtzctr Heavy Ion Res GmbH, D-64291 Darmstadt, Germany

[12] Guangxi Normal Univ, Guilin 541004, Peoples R China

[13] Guangxi Univ, Nanning 530004, Peoples R China

[14] Hangzhou Normal Univ, Hangzhou 310036, Peoples R China

[15] Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany

[16] Henan Normal Univ, Xinxiang 453007, Henan, Peoples R China

[17] Henan Univ Sci & Technol, Luoyang 471003, Peoples R China

[18] Huangshan Coll, Huangshan 245000, Peoples R China

[19] Hunan Normal Univ, Changsha 410081, Peoples R China

[20] Hunan Univ, Changsha 410082, Hunan, Peoples R China

[21] Indian Inst Technol Madras, Chennai 600036, Tamil Nadu, India

[22] Indiana Univ, Bloomington, IN 47405 USA

[23] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[24] Ist Nazl Fis Nucl, I-06100 Perugia, Italy

[25] Univ Perugia, I-06100 Perugia, Italy

[26] Ist Nazl Fis Nucl, Sez Ferrara, I-44122 Ferrara, Italy

[27] Univ Ferrara, I-44122 Ferrara, Italy

[28] Inst Modern Phys, Lanzhou 730000, Peoples R China

[29] Inst Phys & Technol, Peace Ave 54B, Ulaanbaatar 13330, Mongolia

[30] Jilin Univ, Changchun 130012, Peoples R China

[31] Johannes Gutenberg Univ Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany

[32] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[33] Justus Liebig Univ Giessen, Phys Inst 2, Heinrich Buff Ring 16, D-35392 Giessen, Germany

[34] Univ Groningen, KVI CART, NL-9747 AA Groningen, Netherlands

[35] Lanzhou Univ, Lanzhou 730000, Peoples R China

[36] Liaoning Normal Univ, Dalian 116029, Peoples R China

[37] Liaoning Univ, Shenyang 110036, Peoples R China

[38] Nanjing Normal Univ, Nanjing 210023, Peoples R China

[39] Nanjing Univ, Nanjing 210093, Peoples R China

[40] Nankai Univ, Tianjin 300071, Peoples R China

[41] Peking Univ, Beijing 100871, Peoples R China

[42] Qufu Normal Univ, Qufu 273165, Shandong, Peoples R China

[43] Shandong Normal Univ, Jinan 250014, Peoples R China

[44] Shandong Univ, Jinan 250100, Peoples R China

[45] Shanghai Jiao Tong Univ, Shanghai 200240, Peoples R China

[46] Shanxi Normal Univ, Linfen 041004, Shanxi, Peoples R China

[47] Shanxi Univ, Taiyuan 030006, Peoples R China

[48] Sichuan Univ, Chengdu 610064, Peoples R China

[49] Soochow Univ, Suzhou 215006, Peoples R China

[50] Southeast Univ, Nanjing 211100, Peoples R China

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 05期

基金：

瑞典研究理事会; 中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevD.102.052003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using 2.93 fb(-1) of e(+) e(-) collision data taken at a center-of-mass energy of 3.773 GeV by the BESIII detector at the BEPCII, we measure the branching fractions of the singly Cabibbo-suppressed decays D -> omega pi pi to be B(D-0 -> omega pi(+) pi(-)) = (1.33 +/- 0.16 +/- 0.12) x 10(-3) and B(D+ -> omega pi(+)pi(0)) = (3.87 +/- 0.83 +/- 0.25) x 10(-3), where the first uncertainties are statistical and the second ones systematic. The statistical significances are 12.9 sigma and 7.7 sigma, respectively. The precision of B(D-0 -> omega pi(+) pi(-)) is improved by a factor of 2.1 over prior measurements, and B(D+ -> omega pi(+) pi(0)) is measured for the first time. No significant signal for D-0 -> omega pi(0)pi(0) is observed, and the upper limit on the branching fraction is B(D-0 -> omega pi(0)pi(0)) < 1.10 x 10(-3) at the 90% confidence level. The branching fractions of D -> eta pi pi are also measured and consistent with existing results.

引用

页数：12

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