A Method of π 0 Energy Reconstruction
We present a method of π 0 energy reconstruction by measuring two decay photon energies from a π 0 meson and their opening angle. Although most high-energy photon detectors display an energy dependence on the energy resolution (FWHM) which is proportional to 1/√E, the resolution is poor for low-ener...
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Veröffentlicht in: | Japanese Journal of Applied Physics 1985-04, Vol.24 (4R), p.506 |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | We present a method of π
0
energy reconstruction by measuring two decay photon energies from a π
0
meson and their opening angle. Although most high-energy photon detectors display an energy dependence on the energy resolution (FWHM) which is proportional to 1/√E, the resolution is poor for low-energy photons, this method improves there constructed π
0
energy resolution. The method gives a simple analytic formula by taking into account the energy dependence of the photon-energy resolution of detectors such as lead-glass Cherenkov counters. It is verified by a Monte Carlo calculation that the method is more accurate and more reliable than other methods. The method is applicable to a particle which decays into two photons, such as an η meson. |
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ISSN: | 0021-4922 1347-4065 |
DOI: | 10.1143/JJAP.24.506 |