A study of photon production in hadronic e + e − annihilation

Bartel, W. and Finch, Alexander (1985) A study of photon production in hadronic e + e − annihilation. Zeitschrift für Physik C Particles and Fields, 28 (3). pp. 343-356. ISSN 0170-9739

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The production of photons ine + e −→γ+hadrons is investigated at three centre of mass energies around 14, 22 and 34 GeV. On average, photons carry 25% of the total available energy, with a multiplicity similar to the charged multiplicity. The inclusive photon spectra are found to scale with the centre of mass energy as a function of the Feynman variablex. π0 and η mesons are reconstructed from their decay photons. The slopes of the spectra are similar to that for charged pions and approximate scaling is observed for π0 production. The mean π0 and η multiplicities are given. The observed photon yield can be fully accounted for by hadron decays and initial state radiation. However, up to one extra photon per event from other sources cannot be excluded.

Item Type: Journal Article
Journal or Publication Title: Zeitschrift für Physik C Particles and Fields
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3101
Departments: Faculty of Science and Technology > Physics
ID Code: 63854
Deposited By: ep_importer_pure
Deposited On: 01 May 2013 15:39
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2019 23:43
URI: https://eprints.lancs.ac.uk/id/eprint/63854

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