4.3 Article

Performance of the CMS Zero Degree Calorimeters in pPb collisions at the LHC

Journal

JOURNAL OF INSTRUMENTATION
Volume 16, Issue 5, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/16/05/P05008

Keywords

Calorimeters; Cherenkov detectors; Heavy-ion detectors

Funding

  1. Office of Science, US Department of Energy
  2. New National Excellence Program of the Ministry for Innovation and Technology [UNKP-19-3]
  3. National Research, Development and Innovation Office of Hungary [K 124845, K 128713, K 128786, FK 123842]
  4. Hungarian Academy of Sciences Lendulet (Momentum) Program [LP 2015-7/2015]

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This paper investigates the performance of the CMS experiment's ZDC in the 2016 pPb run, studying the detectors' response to ultrarelativistic neutrons using in-depth Monte Carlo simulations. It presents a method of signal extraction based on template fits and a dedicated calibration procedure, as well as discusses a deconvolution technique for correcting overlapping collision events.
The two Zero Degree Calorimeters (ZDCs) of the CMS experiment are located at +/- 140m from the collision point and detect neutral particles in the |eta | > 8 .3 pseudorapidity region. This paper presents a study on the performance of the ZDC in the 2016 pPb run. The response of the detectors to ultrarelativistic neutrons is studied using in-depth Monte Carlo simulations. A method of signal extraction based on template fits is presented, along with a dedicated calibration procedure. A deconvolution technique for the correction of overlapping collision events is discussed.

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