Design of the TEPX luminometer for the CMS experiment at the HL-LHC

Authors

  • Jose Feliciano Benitez
  • Hedwin Aaron Encinas Acosta Universidad de Sonora
  • Ashish Sehrawat University of Sonora
  • Cristina Oropeza Barrera Iberoamerican University

DOI:

https://doi.org/10.31349/SuplRevMexFis.3.020722

Keywords:

Tracker endcap pixel, high-luminosity, van der Meer

Abstract

The design and expected performance for precision luminosity measurement of the Tracker Endcap Pixel (TEPX) detector for the CMS experiment at the upcoming High-Luminosity LHC (HL-LHC) is described. The TEPX detector is composed of 4 double-sided double disks at each end of CMS covering the range of | z | from 175 to 265 cm, each disk made of 5 rings composed of silicon sensors, with a total of 800 million pixels distributed across the 8 disks. Disk 4 Ring 1 (TEPXD4R1) will be dedicated to luminosity and beam-induced background measurements, utilising the same method as that of the rest of TEPX, namely pixel cluster counting. For the HL-LHC, the goal is to achieve a final uncertainty of 1% for offline luminosity measurements. The expected performance of the TEPX and TEPXD4R1 luminometers in terms of statistical precision for van der Meer scan calibration and for physics conditions, as well as the linearity performance of each disk are presented.

 

References

CMS Collaboration, CMS luminosity measurement for the 2015 data-taking period, CMS-PAS-LUM-15-001, 2017 URL https://cds.cern.ch/record/2138682?ln=es.

CMS Collaboration, Precision luminosity measurement in proton-proton collisions at √ s = 13 TeV in 2015 and 2016 at CMS, CMS-LUM-17-003; CERN-EP-2021-033 ; CMSLUM-17-003-003, 2021. URL https://cds.cern.ch/record/2759951?ln=es.

CMS collaboration, CMS luminosity measurement for the 2017 data-taking period at √ s = 13 TeV, CMS-PAS-LUM17-004, 2018. URL https://cds.cern.ch/record/2621960?ln=es.

CMS Collaboration, CMS luminosity measurement for the 2018 data-taking period at √ s = 13 TeV, CMS-PAS-LUM18-002, 2019. URL https://cds.cern.ch/record/2676164

S. van der Meer, Calibration of the effective beam height in the ISR. Technical report, CERN, Geneva, 1968. URL https://cds.cern.ch/record/296752.

CMS collaboration, The Phase-2 Upgrade of the CMS Tracker, CERN-LHCC-2017-009; CMS-TDR-014, 2017. URL https://cds.cern.ch/record/2272264?ln=es.

CMS collaboration, The Phase-2 Upgrade of the CMS Beam Radiation Instrumentation and Luminosity Detectors, CERNLHCC-2021-008; CMS-TDR-023, 2021. URL https://cds.cern.ch/record/2759074.

Downloads

Published

2022-06-23

How to Cite

1.
Benitez JF, Encinas Acosta HA, Sehrawat A, Oropeza Barrera C. Design of the TEPX luminometer for the CMS experiment at the HL-LHC. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 23 [cited 2024 Apr. 24];3(2):020722 1-4. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6310

Issue

Vol. 3 No. 2 (2022): Suplemento de la Revista Mexicana de Física. Joint Proceedings of the XXXV Annual Meeting of the DPyC-SMF & XIX Mexican School on Particles and Fields

Section

07 Joint Proc. XXXV Annual Meeting DPyC-SMF & XIX Mexican School on Particles an

License

Copyright (c) 2022 Jose Feliciano Benitez, Hedwin Aaron Encinas Acosta, Ashish Sehrawat, Cristina Oropeza Barrera (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the Suplemento de la Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.