Header

UZH-Logo

Maintenance Infos

Test beam performance measurements for the Phase I upgrade of the CMS pixel detector


Amsler, C; Bösiger, K; Caminada, L; Canelli, F; Chiochia, V; De Cosa, A; Galloni, C; Hreus, T; Kilminster, B; Lange, C; Maier, R; Ngadiuba, J; Pinna, D; Robmann, P; Taroni, S; Yang, Y; et al (2017). Test beam performance measurements for the Phase I upgrade of the CMS pixel detector. Journal of Instrumentation, 12(05):P05022.

Abstract

A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase I Upgrade of the LHC . The new CMS pixel detector provides four-hit tracking with a reduced material budget as well as new cooling and powering schemes. A new front-end readout chip mitigates buffering and bandwidth limitations, and allows operation at low comparator thresholds. In this paper, comprehensive test beam studies are presented, which have been conducted to verify the design and to quantify the performance of the new detector assemblies in terms of tracking efficiency and spatial resolution. Under optimal conditions, the tracking efficiency is 99.95 ± 0.05, while the intrinsic spatial resolutions are 4.80 ± 0.25 μm and 7.99 ± 0.21 μm along the 100 μm and 150 μm pixel pitch, respectively. The findings are compared to a detailed Monte Carlo simulation of the pixel detector and good agreement is found.

Abstract

A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase I Upgrade of the LHC . The new CMS pixel detector provides four-hit tracking with a reduced material budget as well as new cooling and powering schemes. A new front-end readout chip mitigates buffering and bandwidth limitations, and allows operation at low comparator thresholds. In this paper, comprehensive test beam studies are presented, which have been conducted to verify the design and to quantify the performance of the new detector assemblies in terms of tracking efficiency and spatial resolution. Under optimal conditions, the tracking efficiency is 99.95 ± 0.05, while the intrinsic spatial resolutions are 4.80 ± 0.25 μm and 7.99 ± 0.21 μm along the 100 μm and 150 μm pixel pitch, respectively. The findings are compared to a detailed Monte Carlo simulation of the pixel detector and good agreement is found.

Statistics

Citations

Altmetrics

Downloads

8 downloads since deposited on 15 Feb 2018
8 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:15 Feb 2018 13:35
Last Modified:20 Feb 2018 14:37
Publisher:IOP Publishing
ISSN:1748-0221
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1088/1748-0221/12/05/P05022

Download

Download PDF  'Test beam performance measurements for the Phase I upgrade of the CMS pixel detector'.
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher
Licence: Creative Commons: Attribution 3.0 Unported (CC BY 3.0)