Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC
文献类型：期刊论文
| 作者 | Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aparin, A |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2020 |
| 卷号 | 101期号:5页码:- |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.101.052004 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Particle production sensitive to nonfactorizable and nonperturbative processes that contribute to the underlying event associated with a high transverse momentum (p(T)) jet in proton thorn proton collisions at root s = 200 GeV is studied with the STAR detector. Each event is divided into three regions based on the azimuthal angle with respect to the highest-p(T) jet direction: in the leading jet direction ("Toward"), opposite to the leading jet ("Away"), and perpendicular to the leading jet ("Transverse"). In the Transverse region, the average charged particle density is found to be between 0.4 and 0.6 and the mean transverse momentum, < p(T)>, between 0.5 and 0.7 GeV/c for particles with p(T) > 0.2 GeV/c at mid-pseudorapidity (vertical bar eta vertical bar < 1) and jet p(T) > 15 GeV/c. Both average particle density and < p(T)> depend weakly on the leading jet p(T). Closer inspection of the Transverse region hints that contributions to the underlying event from initial- and final-state radiation are significantly smaller in these collisions than at the higher energies, up to 13 TeV, recorded at the LHC. Underlying event measurements associated with a high-p(T) jet will contribute to our understanding of QCD processes at hard and soft scales at RHIC energies, as well as provide constraints to modeling of underlying event dynamics. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33245]  |
| 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.Eotvos Lorand Univ, H-1117 Budapest, Hungary 2.Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany 3.Fudan Univ, Shanghai 200433, Peoples R China 4.Heidelberg Univ, D-69120 Heidelberg, Germany 5.Univ Houston, Houston, TX 77204 USA (2 6.Huzhou Univ, Huzhou 313000, Zhejiang, Peoples R China 7.Indian Inst Sci Educ & Res, Berhampur 760010, India 8.Indian Inst Sci Educ & Res IISER Tirupati, Tirupati 517507, Andhra Pradesh, India 9.Indian Inst Technol, Patna 801106, Bihar, India 10.Indiana Univ, Bloomington, IN 47408 USA |
| 推荐引用方式 GB/T 7714 | Adam, J,Adamczyk, L,Adams, JR,et al. Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC[J]. PHYSICAL REVIEW D,2020,101(5):-. |
| APA | Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,Agakishiev, G.,...&Zyzak, M.(2020).Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC.PHYSICAL REVIEW D,101(5),-. |
| MLA | Adam, J,et al."Underlying event measurements in p plus p collisions at root s=200 GeV at RHIC".PHYSICAL REVIEW D 101.5(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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