Upgrade of the ALICE central barrel tracking detectors: ITS and TPC
文献类型：期刊论文
| 作者 | Margutti, J; 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:943—946 |
| ISSN号 | 0375-9474 |
| DOI | 10.1016/j.nuclphysa.2018.08.022 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The ALICE Collaboration will undertake a major upgrade of the detector apparatus during the second LHC Long Shutdown LS2 (2019-2020) in view of the Runs 3 and 4 (2021-2029). The objective of the upgrade is two-fold: i) an improvement of the tracking precision and efficiency, in particular in the low-momentum range; ii) an improvement of the readout capabilities of the experiment, in order to fully exploit the luminosity for heavy ions envisaged after LS2. The first goal will be achieved by replacing the Inner Tracking System with a new tracker, composed of seven layers of silicon pixel detectors. The new tracker will be made up of about 25000 Monolithic Active Pixel Sensors with fast readout, resulting in a material thickness reduced to 0.3% (inner layers) -1% (outer layers) of the radiation length and a granularity of 28 x28 mu m(2). The second goal will be achieved, among other measures, by replacing the readout chambers of the 90 m(3) Time Projection Chamber with Micro Pattern Gaseous Detectors. In particular, the new readout chambers will consist of stacks of 4 Gas Electron Multiplier foils combining different hole pitches. The upgraded detector will operate continuously without the use of a triggered gating grid. It will thus be able to record all Pb-Pb collisions at the LHC interaction rate of 50 kHz. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31895]  |
| 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.Tech Univ Munich, Phys Dept E62, Garching, Germany; 2.Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia; 3.Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine; 4.Bose Inst, Dept Phys, Kolkata, India; 5.CAPSS, Kolkata, India; 6.Budker Inst Nucl Phys, Novosibirsk, Russia; 7.Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA; 8.Cent China Normal Univ, Wuhan, Hubei, Peoples R China; 9.IN2P3, Ctr Calcul, Lyon, France; 10.Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba; |
| 推荐引用方式 GB/T 7714 | Margutti, J,Acharya, S,Acosta, FT,et al. Upgrade of the ALICE central barrel tracking detectors: ITS and TPC[J]. NUCLEAR PHYSICS A,2019,982(-):943—946. |
| APA | Margutti, J.,Acharya, S.,Acosta, FT.,Adamova, D.,Adolfsson, J.,...&Zou, S.(2019).Upgrade of the ALICE central barrel tracking detectors: ITS and TPC.NUCLEAR PHYSICS A,982(-),943—946. |
| MLA | Margutti, J,et al."Upgrade of the ALICE central barrel tracking detectors: ITS and TPC".NUCLEAR PHYSICS A 982.-(2019):943—946. |
入库方式： OAI收割
来源：上海应用物理研究所
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