Production of the rho(770)(0) meson in pp and Pb-Pb collisions at root S-NN=2.76 TeV
文献类型：期刊论文
| 作者 | Acharya, S; Acosta, FT; Adamova, D; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z; Ahn, SU |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2019 |
| 卷号 | 99期号:6页码:— |
| ISSN号 | 2469-9985 |
| 关键词 | BOSE-EINSTEIN CORRELATIONS PROTON-PROTON COLLISIONS DIRECT PHOTON PRODUCTION AU COLLISIONS RESONANCE PRODUCTION CENTRALITY DEPENDENCE INCLUSIVE PRODUCTION ROOT-S(NN)=200 GEV HADRON-PRODUCTION P+P COLLISIONS |
| DOI | 10.1103/PhysRevC.99.064901 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The production of the rho(770)(0) meson has been measured at midrapidity (vertical bar y vertical bar < 0.5) in pp and centrality differential Pb-Pb collisions at root S-NN = 2.76 TeV with the ALICE detector at the Large Hadron Collider. The particles have been reconstructed in the rho(770)(0) -> pi(+)pi(-) decay channel in the transverse-momentum (p(T)) range 0.5-11 GeV/c. A centrality-dependent suppression of the ratio of the integrated yields 2 rho(770)(0)/(pi(+)+pi(-)) is observed. The ratio decreases by similar to 40% from pp to central Pb-Pb collisions. A study of the p(T)-differential 2 rho(770)(0)/(pi(+) + pi(-)) ratio reveals that the suppression occurs at low transverse momenta, P-T < 2 GeV/c. At higher momentum, particle ratios measured in heavy-ion and pp collisions are consistent. The observed suppression is very similar to that previously measured for the K*(892)(0)/K ratio and is consistent with EPOS3 predictions that may imply that rescattering in the hadronic phase is a dominant mechanism for the observed suppression. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31774]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Budker Inst Nucl Phys, Novosibirsk, Russia; 2.Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA; 3.Cent China Normal Univ, Wuhan, Hubei, Peoples R China; 4.IN2P3, Ctr Calcul, Lyon, France; 5.Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba; 6.Ctr Invest & Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico; 7.Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Mexico; 8.Ctr Fermi, Museo Storico Fis, Rome, Italy; 9.Ctr Studi & Ric Enrico Fermi, Rome, Italy; 10.Chicago State Univ, Chicago, IL USA; |
| 推荐引用方式 GB/T 7714 | Acharya, S,Acosta, FT,Adamova, D,et al. Production of the rho(770)(0) meson in pp and Pb-Pb collisions at root S-NN=2.76 TeV[J]. PHYSICAL REVIEW C,2019,99(6):—. |
| APA | Acharya, S.,Acosta, FT.,Adamova, D.,Adolfsson, J.,Aggarwal, MM.,...&Zou, S.(2019).Production of the rho(770)(0) meson in pp and Pb-Pb collisions at root S-NN=2.76 TeV.PHYSICAL REVIEW C,99(6),—. |
| MLA | Acharya, S,et al."Production of the rho(770)(0) meson in pp and Pb-Pb collisions at root S-NN=2.76 TeV".PHYSICAL REVIEW C 99.6(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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