First Study of Reaction Ξ0n → Ξ -p Using Ξ0-Nucleus Scattering at an Electron-Positron Collider

被引：12

作者：

Ablikim, M. ^{[1
]}

Achasov, M. N. ^{[13
,91
]}

Adlarson, P. ^{[83
]}

Aliberti, R. ^{[39
]}

Amoroso, A. ^{[79
,80
,82
]}

An, M. R. ^{[43
]}

An, Q. ^{[61
,62
,76
]}

Bai, Y. ^{[60
]}

Bakina, O. ^{[40
]}

Balossino, I. ^{[32
]}

Ban, Y. ^{[50
,99
]}

Batozskaya, V. ^{[1
,48
]}

Begzsuren, K. ^{[36
]}

Berger, N. ^{[39
]}

Berlowski, M. ^{[48
]}

Bertani, M. ^{[29
]}

Bettoni, D. ^{[32
]}

Bianchi, F. ^{[79
,80
,82
]}

Bianco, E. ^{[79
,80
,82
]}

Bloms, J. ^{[73
]}

Bortone, A. ^{[79
,80
,82
]}

Boyko, I. ^{[40
]}

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

Brueggemann, A. ^{[73
]}

Cai, H. ^{[84
]}

Cai, X. ^{[1
,61
,62
]}

Calcaterra, A. ^{[29
]}

Cao, G. F. ^{[1
,68
]}

Cao, N. ^{[1
,68
]}

Cetin, S. A. ^{[66
]}

Chang, J. F. ^{[1
,61
,62
]}

Chang, T. T. ^{[85
]}

Chang, W. L. ^{[1
,68
]}

Che, G. R. ^{[47
]}

Chelkov, G. ^{[40
,90
]}

Chen, C. ^{[47
]}

Chen, Chao ^{[58
]}

Chen, G. ^{[1
]}

Chen, H. S. ^{[1
,68
]}

Chen, M. L. ^{[1
,61
,62
,68
]}

Chen, S. J. ^{[46
]}

Chen, S. M. ^{[65
]}

Chen, T. ^{[1
,68
]}

Chen, X. R. ^{[35
,68
]}

Chen, X. T. ^{[1
,68
]}

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

Chen, Y. Q. ^{[38
]}

Chen, Z. J. ^{[26
,100
]}

Cheng, W. S. ^{[82
]}

Choi, S. K. ^{[10
]}

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] Cent South Univ, Changsha 410083, Peoples R China

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

[9] China Univ Geosci, Wuhan 430074, Peoples R China

[10] Chung Ang Univ, Seoul 06974, South Korea

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

[12] Fudan Univ, Shanghai 200433, Peoples R China

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

[14] GSI Helmholtzcentre Heavy Ion Res GmbH, D-64291 Darmstadt, Germany

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

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

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

[18] Hebei Univ, Baoding 071002, Peoples R China

[19] Helmholtz Inst Mainz, Staudinger Weg 18, D-55099 Mainz, Germany

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

[21] Henan Univ, Kaifeng 475004, Peoples R China

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

[23] Henan Univ Technol, Zhengzhou 450001, Peoples R China

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

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

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

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

[28] Indiana Univ, Bloomington, IN 47405 USA

[29] INFN Lab Nazl Frascati, I-00044 Frascati, Italy

[30] INFN Sez Perugia, I-06100 Perugia, Italy

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

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

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

[34] Inner Mongolia Univ, Hohhot 010021, Peoples R China

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

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

[37] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica, Chile

[38] Univ Tarapaca, Inst Alta Invest, Casilla 7D, Arica, Chile

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

[40] Inst Nucl Res, Dubna 141980, Moscow Region, Russia

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

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

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

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

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

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

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

[48] Natl Ctr Nucl Res, PL-02093 Warsaw, Poland

[49] North China Elect Power Univ, Beijing 102206, Peoples R China

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

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 25期

基金：

瑞典研究理事会; 新加坡国家研究基金会; 中国国家自然科学基金;

关键词：

NUCLEAR-PHYSICS; CROSS-SECTIONS; STRANGENESS S; H-DIBARYON; WEAK DECAY; SEARCH; XI;

D O I：

10.1103/PhysRevLett.130.251902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using (1.0087 & PLUSMN; 0.0044) x 1010 J=iy events collected with the BESIII detector at the BEPCII storage ring, the process E0n & RARR; E-p is studied, where the E0 baryon is produced in the process J=iy & RARR; E0E over bar 0 and the neutron is a component of the 9Be, 12C, and 197Au nuclei in the beam pipe. A clear signal is observed with a statistical significance of 7.1u. The cross section of the reaction E0 + 9Be & RARR; E- + p + 8Be is determined to be u(E0 + 9Be & RARR; E- + p + 8Be) = (22.1 & PLUSMN; 5.3stat & PLUSMN; 4.5sys) mb at the E0 momentum of 0.818 GeV=c, where the first uncertainty is statistical and the second is systematic. No significant H-dibaryon signal is observed in the E-p final state. This is the first study of hyperon-nucleon interactions in electron-positron collisions and opens up a new direction for such research.

引用

页数：9

共 66 条

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