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

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

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

Authors

Bandourin, D. V.

Konoplyanikov, V. F.

Skachkov, N. B.

Description

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.
17 pages, uses cernrep.cls style file