Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies
文献类型：期刊论文
| 作者 | Acharya, S; Acosta, FT; Adam, J; Adamova, D; Adler, A; Adolfsson, J; Aggarwal, MM; Rinella, GA; Agnello, M; Agrawal, N |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2020 |
| 卷号 | 802页码:- |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2020.135227 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The ALICE collaboration at the CERN LHC reports novel measurements of jet substructure in pp collisions at root s = 7 TeV and central Pb-Pb collisions at root s(NN) = 2.76 TeV. Jet substructure of track-based jets is explored via iterative declustering and grooming techniques. We present the measurement of the momentum sharing of two-prong substructure exposed via grooming, the z(g), and its dependence on the opening angle, in both pp and Pb-Pb collisions. We also present the measurement of the distribution of the number of branches obtained in the iterative declustering of the jet, which is interpreted as the number of its hard splittings. In Pb-Pb collisions, we observe a suppression of symmetric splittings at large opening angles and an enhancement of splittings at small opening angles relative to pp collisions, with no significant modification of the number of splittings. The results are compared to predictions from various Monte Carlo event generators to test the role of important concepts in the evolution of the jet in the medium such as colour coherence. (C) 2020 The Author(s). Published by Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/32874]  |
| 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 Bari, Bari, Italy 2.Univ Zagreb, Dept Phys, Fac Sci, Zagreb, Croatia 3.European Org Nucl Res CERN, Geneva, Switzerland 4.Grp Collegato INFN, Salerno, Italy 5.Yerevan Phys Inst, 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.Bose Inst, Ctr Astroparticle Phys & Space Sci, Kolkata, India 9.Budker Inst Nucl Phys, Novosibirsk, Russia 10.Calif Polytechn State Univ, San Luis Obispo, CA USA |
| 推荐引用方式 GB/T 7714 | Acharya, S,Acosta, FT,Adam, J,et al. Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies[J]. PHYSICS LETTERS B,2020,802:-. |
| APA | Acharya, S.,Acosta, FT.,Adam, J.,Adamova, D.,Adler, A.,...&Zmeskal, J.(2020).Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies.PHYSICS LETTERS B,802,-. |
| MLA | Acharya, S,et al."Exploration of jet substructure using iterative declustering in pp and Pb-Pb collisions at LHC energies".PHYSICS LETTERS B 802(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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