Observation of the Semileptonic Decay D0 → a0(980)-e+νe and Evidence for D+ → a0(980)0e+νe

被引：29

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[10
,71
]}

Ahmed, S. ^{[15
]}

Albrecht, M. ^{[4
]}

Alekseev, M. ^{[60
,62
]}

Amoroso, A. ^{[60
,62
]}

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

An, Q. ^{[45
,46
,57
]}

Bai, Y. ^{[44
]}

Bakina, O. ^{[30
]}

Ferroli, R. Baldini ^{[23
]}

Ban, Y. ^{[38
]}

Begzsuren, K. ^{[28
]}

Bennett, D. W. ^{[22
]}

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

Berger, N. ^{[29
]}

Bertani, M. ^{[23
]}

Bettoni, D. ^{[26
]}

Bianchi, F. ^{[60
,62
]}

Boger, E. ^{[30
,69
]}

Boyko, I. ^{[30
]}

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

Cai, H. ^{[64
]}

Cai, X. ^{[1
,45
,46
]}

Calcaterra, A. ^{[23
]}

Cao, G. F. ^{[1
,51
]}

Cetin, S. A. ^{[49
]}

Chai, J. ^{[62
]}

Chang, J. F. ^{[1
,45
,46
]}

Chang, W. L. ^{[1
,51
]}

Chelkov, G. ^{[30
,69
,70
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,51
]}

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

Chen, M. L. ^{[1
,45
,46
]}

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

Chen, X. R. ^{[33
]}

Chen, Y. B. ^{[1
,45
,46
]}

Cheng, W. ^{[62
]}

Chu, X. K. ^{[38
]}

Cibinetto, G. ^{[26
]}

Cossio, F. ^{[62
]}

Dai, H. L. ^{[1
,45
,46
]}

Dai, J. P. ^{[40
,75
,76
,77
]}

Dbeyssi, A. ^{[15
]}

Dedovich, D. ^{[30
]}

Deng, Z. Y. ^{[1
]}

Denig, A. ^{[29
]}

Denysenko, I. ^{[30
]}

Destefanis, M. ^{[60
,62
]}

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 Inst Informat Technol, Def Rd,Raiwind Rd, Lahore 54000, Pakistan

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

[10] RAS, SB, GI Budker Inst Nucl Phys, 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, 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, Madras 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 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 Univ, Jinan 250100, Shandong, Peoples R China

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

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

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

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

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

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

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

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

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

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

[50] Near East Univ, Nicosia 10, North Cyprus, Turkey

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 08期

基金：

瑞典研究理事会; 中国国家自然科学基金;

关键词：

E(+)E(-);

D O I：

10.1103/PhysRevLett.121.081802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using an e(+)e(-) collision data sample of 2.93 fb(-1) collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of D-0 -> a(0)(980)(-)e(+)nu(e) and evidence for D+ -> a(0)(980)(0)e(+)nu(e) with significances of 6.4 sigma and 2.9 sigma, respectively. The absolute branching fractions are determined to be B(D-0 -> a(0)(980)(-)e(+)nu(e)) x B(a(0)(980)(-) -> eta pi(-)) = [1.33(-0.29)(+0.33)(stat) +/- 0.09(syst)] x 10(-4) and B(D+ -> a(0)(980)(0)e(+)nu(e)) x B(a(0)(980)(0) -> eta pi(0)) = [1.66(-0.66)(+0.81)(stat) +/- 0.11(syst) x 10(-4). This is the first time the a(0)(980) meson has been measured in a D-0 semileptonic decay, which would open one more interesting page in the investigation of the nature of the puzzling a(0)(980) states.

引用

页数：8

共 50 条

[1] Semileptonic decays D → ηπe+ νe in the a0 (980) region
Achasov, N. N.
Kiselev, A., V
Shestakov, G. N.
PHYSICAL REVIEW D, 2021, 104 (01)
[2] The D+s → a0(980)e+νe reaction and the a0(980) - f0(980) mixing
Lin, Jia-Xin
Li, Jia-Ting
Jiang, Sheng-Juan
Liang, Wei-Hong
Oset, E.
EUROPEAN PHYSICAL JOURNAL C, 2021, 81 (11):
[3] Search for the decay Ds+ → a0(980)0e+νe
Ablikim, M.
Achasov, M. N.
Adlarson, P.
Ahmed, S.
Albrecht, M.
Aliberti, R.
Amoroso, A.
An, M. R.
An, Q.
Bai, X. H.
Bai, Y.
Bakina, O.
Ferroli, R. Baldini
Balossino, I
Ban, Y.
Begzsuren, K.
Berger, N.
Bertani, M.
Bettoni, D.
Bianchi, F.
Bloms, J.
Bortone, A.
Boyko, I
Briere, R. A.
Cai, H.
Cai, X.
Calcaterra, A.
Cao, G. F.
Cao, N.
Cetin, S. A.
Chang, J. F.
Chang, W. L.
Chelkov, G.
Chen, D. Y.
Chen, G.
Chen, H. S.
Chen, M. L.
Chen, S. J.
Chen, X. R.
Chen, Y. B.
Chen, Z. J.
Cheng, W. S.
Cibinetto, G.
Cossio, F.
Cui, X. F.
Dai, H. L.
Dai, X. C.
Dbeyssi, A.
de Boer, R. E.
Dedovich, D.
PHYSICAL REVIEW D, 2021, 103 (09)
[4] a0(980) physics in semileptonic D0 and D+ decays
Achasov, N. N.
Kiselev, A. V.
PHYSICAL REVIEW D, 2018, 98 (09)
[5] Study of the semileptonic charm decays D0→π-e+νe, D+→π0e+νe, D0→K-e+νe, and D+→(K)over-bar0e+νe
Dobbs, S.
Metreveli, Z.
Seth, K. K.
Tomaradze, A.
Ernst, J.
Severini, H.
Dytman, S. A.
Love, W.
Savinov, V.
Aquines, O.
Li, Z.
Lopez, A.
Mehrabyan, S.
Mendez, H.
Ramirez, J.
Huang, G. S.
Miller, D. H.
Pavlunin, V.
Sanghi, B.
Shipsey, I. P. J.
Xin, B.
Adams, G. S.
Anderson, M.
Cummings, J. P.
Danko, I.
Napolitano, J.
He, Q.
Insler, J.
Muramatsu, H.
Park, C. S.
Thorndike, E. H.
Yang, F.
Coan, T. E.
Gao, Y. S.
Liu, F.
Artuso, M.
Blusk, S.
Butt, J.
Li, J.
Menaa, N.
Mountain, R.
Nisar, S.
Randrianarivony, K.
Redjimi, R.
Sia, R.
Skwarnicki, T.
Stone, S.
Wang, J. C.
Zhang, K.
Csorna, S. E.
PHYSICAL REVIEW D, 2008, 77 (11):
[6] Qualitative explanation of the data on the decays D0 → a0 (980)±π∓ and D+ → a0 (980)+(0)π0(+) in the four-quark model of the a0(980) resonance
Achasov, N. N.
Shestakov, G. N.
PHYSICAL REVIEW D, 2024, 110 (01)
[7] Study of the decays D0 → π-e+νe, D0 → K-e+νe, D+ → π0e+νe, and D+ → (K)over-bar0e+νe
Cronin-Hennessy, D.
Gao, K. Y.
Gong, D. T.
Hietala, J.
Kubota, Y.
Klein, T.
Lang, B. W.
Poling, R.
Scott, A. W.
Smith, A.
Zweber, P.
Dobbs, S.
Metreveli, Z.
Seth, K. K.
Tomaradze, A.
Ernst, J.
Severini, H.
Dytman, S. A.
Love, W.
Savinov, V.
Aquines, O.
Li, Z.
Lopez, A.
Mehrabyan, S.
Mendez, H.
Ramirez, J.
Huang, G. S.
Miller, D. H.
Pavlunin, V.
Sanghi, B.
Shipsey, I. P. J.
Xin, B.
Adams, G. S.
Anderson, M.
Cummings, J. P.
Danko, I.
Napolitano, J.
He, Q.
Insler, J.
Muramatsu, H.
Park, C. S.
Thorndike, E. H.
Yang, F.
Coan, T. E.
Gao, Y. S.
Liu, F.
Artuso, M.
Blusk, S.
Butt, J.
Li, J.
PHYSICAL REVIEW LETTERS, 2008, 100 (25)
[8] First Measurement of the Form Factors in the Decays D0 → ρ-e+νe and D+ → ρ0e+νe
Dobbs, S.
Metreveli, Z.
Seth, K. K.
Tomaradze, A.
Xiao, T.
Martin, L.
Powell, A.
Wilkinson, G.
Mendez, H.
Asner, D. M.
Tatishvili, G.
Ge, J. Y.
Huang, G. S.
Miller, D. H.
Pavlunin, V.
Shipsey, I. P. J.
Xin, B.
Adams, G. S.
Hu, D.
Moziak, B.
Napolitano, J.
Ecklund, K. M.
Insler, J.
Muramatsu, H.
Park, C. S.
Pearson, L. J.
Thorndike, E. H.
Ricciardi, S.
Thomas, C.
Artuso, M.
Blusk, S.
Mountain, R.
Skwarnicki, T.
Stone, S.
Zhang, L. M.
Bonvicini, G.
Cinabro, D.
Lincoln, A.
Smith, M. J.
Zhou, P.
Zhu, J.
Naik, P.
Rademacker, J.
Edwards, K. W.
Randrianarivony, K.
Briere, R. A.
Vogel, H.
Onyisi, P. U. E.
Rosner, J. L.
Alexander, J. P.
PHYSICAL REVIEW LETTERS, 2013, 110 (13)
[9] Study of D → a0 (980)e+νe decay in the light-cone sum rules approach
Cheng, Xiao-Dong
Li, Hai-Bo
Wei, Bin
Xu, Yu-Guo
Yang, Mao-Zhi
PHYSICAL REVIEW D, 2017, 96 (03)
[10] Search for the decay modes D0 → e+ e-, D0 → μ+ μ-, and D0 → e± μ∓
Lees, J. P.
Poireau, V.
Tisserand, V.
Garra Tico, J.
Grauges, E.
Palano, A.
Eigen, G.
Stugu, B.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu G.
Lynch, G.
Koch, H.
Schroeder, T.
Asgeirsson, D. J.
Hearty, C.
Mattison, T. S.
McKenna, J. A.
So, R. Y.
Khan, A.
Blinov, V. E.
Buzykaev, A. R.
Druzhinin, V. P.
Golubev, V. B.
Kravchenko, E. A.
Onuchin, A. P.
Serednyakov, S. I.
Skovpen, Yu. I.
Solodov, E. P.
Todyshev, K. Yu.
Yushkov, A. N.
Bondioli, M.
Kirkby, D.
Lankford, A. J.
Mandelkern, M.
Atmacan, H.
Gary, J. W.
Liu, F.
Long, O.
Mullin, E.
Vitug, G. M.
Campagnari, C.
Hong, T. M.
Kovalskyi, D.
Richman, J. D.
West, C. A.
Eisner, A. M.
Kroseberg, J.
Lockman, W. S.
Martinez, A. J.
PHYSICAL REVIEW D, 2012, 86 (03):

← 1 2 3 4 5 →