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Results of the new MAPS-based ALICE inner tracker operations in the LHC Run 3
/ Ravasenga, Ivan (CERN)
/ALICE Collaboration
The new ALICE Inner Tracking System (ITS2), installed in ALICE in May 2021 during a major upgrade campaign, significantly enhances the resolution on the determination of the distance of closest approach to the primary vertex, the tracking efficiency at low transverse momenta, and the read-out rate capabilities with respect to the previous tracker. It is equipped with silicon Monolithic Active Pixel Sensors (MAPS) with a pixel size of 27 × 29 μm2, a spatial resolution of 5μm and it features a material budget of 0.36 % X0 (inner layers). [...]
2024 - 3 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169311
In : PSD13: The 13th International Conference on Position Sensitive Detectors, Oxford, United Kingdom, 3 - 9 Sep 2023, pp.169311
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ALICE ITS3: A truly cylindrical vertex detector based on bent, wafer-scale stitched CMOS sensors
/ Liu, Jian (Liverpool U.)
/ALICE Collaboration
The new inner tracking system (ITS2) of the ALICE experiment at the LHC, upgraded during the LHC Long Shutdown 2 (2019–2021) with CMOS monolithic active pixel sensors (ALPIDE), is currently taking data and demonstrating excellent performance in the LHC Run 3. A replacement of the three innermost layers of the ITS2, called ITS3, is foreseen during the LHC Long Shutdown 3 (2026–2028) to further improve its tracking precision and efficiency, particularly at very low transverse momentum down to pT = 0.1 GeV/c. [...]
2024 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169355
Fulltext: PDF;
In : 13th International "Hiroshima" Symposium on the Development and Application of Semiconductor Tracking Detectors, Vancouver, Canada, 3 - 8 Dec 2023, pp.169355
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Alice实验内径迹系统探测器升级
/ Zhang, Biao (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Zhang, Li-ang (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Deng, Wenjing (Hua-Zhong Normal U.) ; Liu, Jun (Hua-Zhong Normal U.) ; Zhang, Wenjing (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Liu, Donghai (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Tan, Yalei (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Wang, Yaping (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Sun, Xiangming (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) ; Yin, Zhongbao (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP) et al.
A Large Ion Collider Experiment(ALICE) at the Large Hadron Collider(LHC) at CERN will undergo a major upgrade during the 2nd LHC Long Shutdown(LS2) scheduled in 2019~2021 that will allow to study in detail of strong interaction matter Quark-Gluon Plasma(QGP) properties. To collecting more Pb-Pb events during the Run 3 and Run 4, the replacement of the existing Inner Tracking System(ITS) with a completely new ultra-light high resolution detector based on Monolithic Active Pixel Sensors(MAPS) technique is one of the cornerstones within this upgrade program. [...]
2020 - 8 p.
- Published in : Nucl. Phys. Rev. 37 (2020) 734-741
Fulltext: PDF;
In : 17th Conference on Nuclear Physics in China, Wuhan, China, 8 - 12 Oct 2019, pp.734-741
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