Spin alignment measurements using vector mesons with ALICE detector at the LHC
文献类型：期刊论文
| 作者 | Singh, R; Acharya, S; Acosta, FT; Adamova, D; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N; Ahammed, Z |
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 2019 |
| 卷号 | 982期号:-页码:515—518 |
| ISSN号 | 0375-9474 |
| DOI | 10.1016/j.nuclphysa.2018.12.004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We present new measurements related to spin alignment of K*(0) vector mesons at mid-rapidity for Pb-Pb collisions at root s(NN) = 2.76 and 5.02 TeV. The spin alignment measurements are carried out with respect to production plane and 2nd order event plane. At low p(T) the spin density matrix element rho(00) for K*(0) is found to have values slightly below 1/3, while it is consistent with 1/3, i.e. no spin alignment, at high p(T). Similar values of rho(00) are observed with respect to both production plane and event plane. Within statistical and systematic uncertainties, rho(00) values are also found to be independent of root s(NN). rho(00) also shows centrality dependence with maximum deviation from 1/3 for mid-central collisions with respect to both the kinematic planes. The measurements for K*(0) in pp collisions at root s = 13 TeV and for K-s(0) (a spin 0 hadron) in 20-40% central Pb-Pb collisions at root s(NN) = 2.76 TeV are consistent with no spin alignment. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31823]  |
| 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.INFN, Sez Torino, Alessandria, Italy; 2.Dipartimento Interateneo Fis M Merlin, Bari, Italy; 3.Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl Phys, Moscow, Russia; 4.Wayne State Univ, 666 W Hancock St, Detroit, MI 48201 USA; 5.Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia; 6.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine; 7.Bose Inst, Dept Phys, Kolkata, India; 8.CAPSS, Kolkata, India; 9.Budker Inst Nucl Phys, Novosibirsk, Russia; 10.Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA; |
| 推荐引用方式 GB/T 7714 | Singh, R,Acharya, S,Acosta, FT,et al. Spin alignment measurements using vector mesons with ALICE detector at the LHC[J]. NUCLEAR PHYSICS A,2019,982(-):515—518. |
| APA | Singh, R.,Acharya, S.,Acosta, FT.,Adamova, D.,Adolfsson, J.,...&Zou, S.(2019).Spin alignment measurements using vector mesons with ALICE detector at the LHC.NUCLEAR PHYSICS A,982(-),515—518. |
| MLA | Singh, R,et al."Spin alignment measurements using vector mesons with ALICE detector at the LHC".NUCLEAR PHYSICS A 982.-(2019):515—518. |
入库方式： OAI收割
来源：上海应用物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。