Simulation of π⁰-γ separation study for proposed CMS forward electromagnetic calorimeter

Journal Article · Fri Nov 11 00:00:00 EST 2016 · Journal of Physics. Conference Series

DOI:https://doi.org/10.1088/1742-6596/759/1/012074· OSTI ID:1333135

Roy, Ashim ^[1]; Jain, Shilpi ^[2]; Banerjee, Sunanda ^[3]; Bhattacharya, Satyaki ^[1]; Majumder, Gobinda ^[4]

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1. Saha Institute of Nuclear Physics, Kolkata (India)
2. National Central Univ. (Taiwan)
3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
4. Tata Institute of Fundamental Research (India)

The Forward Electromagnetic Calorimeter of the CMS detector is going to be upgraded in the high luminosity running as the energy of the present Electromagnetic Calorimeter (PbWO4) will degrade in the high luminosity (luminosity 10³⁴ cm^-2 s^-1) running due to extensive radiation (hadron flux 10¹³ neutrons cm,^-2). Shashlik Electromagnetic Calorimeter which consists of alternate layers of 1.5 mm LYSO(Ce) crystal plates and 2.5 mm Tungsten absorbers, was a proposal for high luminosity running. One of the performance points for any electromagnetic calorimeter is the ability to separate π⁰ s from true photons, since final states with photons are a clean and one of the most important final states in proton-proton collisions at the LHC. As a result, the objective of this project is to study the possibility of π⁰ and γ separation in the Shashlik detector using Multivariate Analysis (MVA) technique.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1333135
• Report Number(s): FERMILAB-CONF-16-539-E; 1497662
• Journal Information: Journal of Physics. Conference Series, Vol. 759, Issue 1; ISSN 1742-6588
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

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