Study of the decays Ds+ → KS0K+ and KL0K+

被引：2

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
]}

Ferroli, R. Baldini ^{[23
]}

Balossino, I ^{[26
]}

Ban, Y. ^{[38
]}

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
]}

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

[29] Johannes Gutenberg Univ Mainz, Johann Joachim 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] Tsineua Univ, Beijing 100084, Peoples R China

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

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 11期

基金：

中国国家自然科学基金; 瑞典研究理事会; 新加坡国家研究基金会;

关键词：

D O I：

10.1103/PhysRevD.99.112005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using an e(+)e(-) annihilation data sample corresponding to an integrated luminosity of 3.19 fb(-1) and collected at a center-of-mass energy root s = 4.178 GeV with the BESIII detector, we measure the absolute branching fractions B(D-s(+) -> (KSK+)-K-0) = (1.425 +/- 0.038(stat). +/- 0.031(syst).)% and B(D-s(+) -> (KLK+)-K-0) = (1.485 +/- 0.039(stat). +/- 0.046(syst).)%. The branching fraction of D-s(+) -> (KSK+)-K-0 is compatible with the world average and that of D-s(+) -> (KLK+)-K-0 is measured for the first time. We present the first measurement of the K-S(0)-K-L(0) asymmetry in the decays D-s(+) -> (KS,LK+)-K-0, and R((Ds+KS,LK+)-K-0) = B(D-s(+) -> (KSK+)-K-0)-B(D-s(+) -> (KLK+)-K-0)/B(D-s(+) -> (KSK+)-K-0)+B(D-s(+) -> (KLK+)-K-0) = (-2.1 +/- 1.9(stat). +/- 1.6(syst).)%. In addition, we measure the direct CP asymmetries A(CP) (D-s(+/-) -> (KSK +/-)-K-0). (0.6 +/- 2.8(stat). +/- 0.6(syst).)% and A(CP)(D-s(+/-) -> (KLK +/-)-K-0 ) = (-1.1 +/- 2.6(stat). +/- 0.6(syst))%.

引用

页数：12

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P. Alvarez Cartelle
A. A. Alves
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M. Artuso
K. Arzymatov
E. Aslanides
M. Atzeni
S. Bachmann
J. J. Back
S. Baker
V. Balagura
W. Baldini
A. Baranov
R. J. Barlow
S. Barsuk
W. Barter
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