On the possibility of discrimination between $π^0, η, ω, K^0_s$ mesons and a photon based on the calorimeter information in the CMS detector

D. V. Bandourin; V. F. Konoplyanikov; N. B. Skachkov

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On the possibility of discrimination between $π^0, η, ω, K^0_s$ mesons and a photon based on the calorimeter information in the CMS detector

D. V. Bandourin·V. F. Konoplyanikov·N. B. Skachkov

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Abstract

The possibility of separating the $π^0, η, ω$ and $K^0_s$ meson background from the signal photons produced directly in $pp$ collisions is analyzed. The rejection factors for two pseudorapidity regions 0.4<η<1.0$ and 1.6<η<2.0$ and six Et values, 20, 40, 60, 80, 100 and 200 GeV, are calculated for a case when only the calorimeter information is used. The cases of $η, ω$ and $K^0_s$ mesons decaying through the neutral and charged channels are considered separately.

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D. V. Bandourin, V. F. Konoplyanikov, N. B. Skachkov. 2001-12-23. On the possibility of discrimination between $π^0, η, ω, K^0_s$ mesons and a photon based on the calorimeter information in the CMS detector. https://arxiv.org/abs/hep-ex/0108050

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