Observation of Directed Flow of Hypernuclei Λ3H and Λ4H in √sNN=3 GeV Au + Au Collisions at RHIC

被引：20

作者：

Aboona, B. E. ^{[53
]}

Adam, J. ^{[16
]}

Adams, J. R. ^{[39
]}

Agakishiev, G. ^{[29
]}

Aggarwal, I. ^{[40
]}

Aggarwal, M. M. ^{[40
]}

Ahammed, Z. ^{[57
]}

Aitbaev, A. ^{[29
]}

Alekseev, I. ^{[2
,36
]}

Anderson, D. M. ^{[53
]}

Aparin, A. ^{[29
]}

Atchison, J. ^{[1
]}

Averichev, G. S. ^{[29
]}

Bairathi, V. ^{[51
]}

Baker, W. ^{[12
]}

Cap, J. G. Ball ^{[21
]}

Barish, K. ^{[12
]}

Bhagat, P. ^{[28
]}

Bhasin, A. ^{[28
]}

Bhatta, S. ^{[50
]}

Bordyuzhin, I. G. ^{[2
]}

Brandenburg, J. D. ^{[29
,39
]}

Brandin, A. V. ^{[36
]}

Cai, X. Z. ^{[48
]}

Caines, H. ^{[59
]}

Sanchez, M. Calderon de la Barca ^{[10
]}

Cebra, D. ^{[10
]}

Ceska, J. ^{[16
]}

Chakaberia, I. ^{[32
]}

Chan, B. K. ^{[11
]}

Chang, Z. ^{[26
]}

Chen, D. ^{[12
]}

Chen, J. ^{[47
]}

Chen, J. H. ^{[19
]}

Chen, Z. ^{[47
]}

Cheng, J.

Cheng, Y. ^{[11
]}

Choudhury, S. ^{[19
]}

Christie, W. ^{[6
]}

Chu, X. ^{[6
]}

Crawford, H. J. ^{[9
]}

Dale-Gau, G. ^{[14
]}

Das, A. ^{[16
]}

Daugherity, M. ^{[1
]}

Dedovich, T. G. ^{[29
]}

Deppner, I. M. ^{[20
]}

Derevschikov, A. A. ^{[41
]}

Dhamija, A. ^{[40
]}

Di Carlo, L. ^{[58
]}

Didenko, L. ^{[6
]}

机构：

[1] Abilene Christian Univ, Abilene, TX 79699 USA

[2] Alikhanov Inst Theoret & Expt Phys NRC Kurchatov, Moscow 117218, Russia

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Amer Univ Cairo, New Cairo 11835, Egypt

[5] Ball State Univ, Muncie, IN 47306 USA

[6] Brookhaven Natl Lab, Upton, NY 11973 USA

[7] Univ Calabria, Calabria, Italy

[8] INFN Cosenza, Cosenza, Italy

[9] Univ Calif Berkeley, Berkeley, CA 94720 USA

[10] Univ Calif Davis, Davis, CA 95616 USA

[11] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[12] Univ Calif Riverside, Riverside, CA 92521 USA

[13] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China

[14] Univ Illinois, Chicago, IL 60607 USA

[15] Creighton Univ, Omaha, NE 68178 USA

[16] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic

[17] Eotvos Lorand Univ, H-1117 Budapest, Hungary

[18] Frankfurt Inst Adv Studies FIAS, D-60438 Frankfurt, Germany

[19] Fudan Univ, Shanghai, Peoples R China

[20] Heidelberg Univ, D-69120 Heidelberg, Germany

[21] Univ Houston, Houston, TX 77204 USA

[22] Huzhou Univ, Huzhou, Zhejiang 313000, Peoples R China

[23] Indian Inst Sci Educ & Res IISER, Berhampur 760010, India

[24] Indian Inst Sci Educ & Res IISER Tirupati, Tirupati 517507, Andhra Pradesh, India

[25] Indian Inst Technol, Patna 801106, Bihar, India

[26] Indiana Univ, Bloomington, IN 47408 USA

[27] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[28] Univ Jammu, Jammu 180001, India

[29] Joint Inst Nucl Res, Dubna 141980, Russia

[30] Kent State Univ, Kent, OH 44242 USA

[31] Univ Kentucky, Lexington, KY 40506 USA

[32] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[33] Lehigh Univ, Bethlehem, PA 18015 USA

[34] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[35] Michigan State Univ, E Lansing, MI 48824 USA

[36] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[37] HBNI, Natl Inst Sci Educ & Res, Jatni 752050, India

[38] Natl Cheng Kung Univ, Tainan 70101, Taiwan

[39] Ohio State Univ, Columbus, OH 43210 USA

[40] Panjab Univ, Chandigarh 160014, India

[41] Inst High Energy Phys, NRC Kurchatov Inst, Protvino 142281, Russia

[42] Purdue Univ, W Lafayette, IN 47907 USA

[43] Rice Univ, Houston, TX 77251 USA

[44] Rutgers State Univ, Piscataway, NJ 08854 USA

[45] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[46] South China Normal Univ, Guangzhou 510631, Guangdong, Peoples R China

[47] Shandong Univ, Qingdao 266237, Shandong, Peoples R China

[48] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

[49] Southern Connecticut State Univ, New Haven, CT 06515 USA

[50] SUNY Stony Brook, Stony Brook, NY 11794 USA

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 21期

基金：

美国国家科学基金会; 中国国家自然科学基金; 新加坡国家研究基金会; 日本学术振兴会;

关键词：

BEAM-ENERGY DEPENDENCE; AZIMUTHAL ANISOTROPY; COLLISIONS; LAMBDA;

D O I：

10.1103/PhysRevLett.130.212301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report here the first observation of directed flow (v(1)) of the hypernuclei H-3(Lambda) and H-3(Lambda) in mid-central Au + Au collisions at root s(NN) 1/4 3 GeV at RHIC. These data are taken as part of the beam energy sNN scan program carried out by the STAR experiment. From 165 x 10(6) events in 5%-40% centrality, about 8400 H-3(Lambda) and 5200 H-4(Lambda) candidates are reconstructed through two- and three-body decay channels. We observe that these hypernuclei exhibit significant directed flow. Comparing to that of light nuclei, it is found that the midrapidity v(1) slopes of H-3(Lambda) and (4)(Lambda)AH follow baryon number scaling, implying that the coalescence is the dominant mechanism for these hypernuclei production in the 3 GeV Au + Au collisions.

引用

页数：7

共 52 条

[21] Formation of hypermatter and hypernuclei within transport models in relativistic ion collisions [J].