Measurement of branching fractions for D meson decaying into φ meson and a pseudoscalar meson

被引：5

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[10
,74
]}

Adlarson, P. ^{[66
]}

Ahmed, S. ^{[15
]}

Albrecht, M. ^{[4
]}

Alekseev, M. ^{[63
,65
]}

Amoroso, A. ^{[63
,65
]}

An, F. F. ^{[1
]}

An, Q. ^{[46
,47
,60
]}

Bai, Y. ^{[45
]}

Bakina, O. ^{[30
]}

Baldini Ferroli, R. ^{[23
]}

Balossino, I ^{[26
]}

Ban, Y. ^{[38
,85
]}

Begzsuren, K. ^{[28
]}

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

Berger, N. ^{[29
]}

Bertani, M. ^{[23
]}

Bettoni, D. ^{[26
]}

Bianchi, F. ^{[63
,65
]}

Biernat, J. ^{[66
]}

Bloms, J. ^{[57
]}

Boyko, I ^{[30
]}

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

Cai, H. ^{[67
]}

Cai, X. ^{[1
,46
,47
]}

Calcaterra, A. ^{[23
]}

Cao, G. F. ^{[1
,52
]}

Cao, N. ^{[1
,52
]}

Cetin, S. A. ^{[50
]}

Chai, J. ^{[65
]}

Chang, J. F. ^{[1
,46
,47
]}

Chang, W. L. ^{[1
,52
]}

Chelkov, G. ^{[30
,72
,73
]}

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

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,52
]}

Chen, J. C. ^{[1
]}

Chen, M. L. ^{[1
,46
,47
]}

Chen, S. J. ^{[36
]}

Chen, Y. B. ^{[1
,46
,47
]}

Cheng, W. ^{[65
]}

Cibinetto, G. ^{[26
]}

Cossio, F. ^{[65
]}

Cui, X. F. ^{[37
]}

Dai, H. L. ^{[1
,46
,47
]}

Dai, J. P. ^{[41
,78
,79
,80
]}

Dai, X. C. ^{[1
,52
]}

Dbeyssi, A. ^{[15
]}

Dedovich, D. ^{[30
]}

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, Hubei, 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, Zhejiang, Peoples R China

[15] Helmholtz Inst Mainz, Johann Joach 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, Hunan, 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] INFN, Lab Nazl Frascati, I-00044 Frascati, Italy

[24] INFN, I-06100 Perugia, Italy

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

[26] INFN, Sez Ferrara, I-44122 Ferrara, Italy

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

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

[29] Johannes Gutenberg Univ Mainz, Johann Joach Becher Weg 45, D-55099 Mainz, Germany

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

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

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

[33] Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China

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

[35] Nanjing Normal Univ, Nanjing 210023, Jiangsu, Peoples R China

[36] Nanjing Univ, Nanjing 210093, Jiangsu, Peoples R China

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

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

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

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

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

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

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

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

[45] Southeast Univ, Nanjing 211100, Jiangsu, Peoples R China

[46] State Key Lab Particle Detect & Elect, Beijing 100049, Peoples R China

[47] State Key Lab Particle Detect & Elect, Hefei 230026, Anhui, Peoples R China

[48] Sun Yat Sen Univ, Guangzhou 510275, Guangdong, Peoples R China

[49] Tsinghua Univ, Beijing 100084, Peoples R China

[50] Istanbul Bilgi Univ, TR-34060 Istanbul, Turkey

来源：

PHYSICS LETTERS B | 2019年 / 798卷

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

BESIII; D meson; Hadronic decays; Branching fractions; MONTE-CARLO; E(+)E(-);

D O I：

10.1016/j.physletb.2019.135017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The four decay modes D-0 -> phi pi(0), D-0 -> phi eta, D+ -> phi pi(+), and D+ up arrow phi K+ are studied by using a data sample taken at the centre-of-mass energy root s = 3.773 GeVwith the BESIII detector, corresponding to an integrated luminosity of 2.93 fb(-1). The branching fractions of the first three decay modes are measured to be B(D-0 -> phi pi(0)) = (1.168 +/- 0.028 +/- 0.028) x 10(-3), B(D-0 -> phi eta) = (1.81 +/- 0.46 +/- 0.06) x 10(-4), and B(D+ -> phi pi(+)) = (5.70 +/- 0.05 +/- 0.13) x 10(-3), respectively, where the first uncertainties are statistical and the second are systematic. In addition, the upper limit of the branching fraction for D+ -> phi K+ is given to be 2.1 x 10(-5) at the 90% confidence level. The ratio of B(D-0 -> phi pi(0)) to B(D+ -> phi pi(+)) is calculated to be (20.49 +/- 0.50 +/- 0.45)%, which is consistent with the theoretical prediction based on isospin symmetry between these two decay modes. (C) 2019 The Author(s). Published by Elsevier B.V.

引用

页数：8

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