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arXiv · hep-ph/0101084

In-event background and signal reconstruction for two-photon invariant-mass analyses

Nick van Eijndhoven·Wouter Wetzels
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Abstract

A method is presented for the reconstruction of both the background and signal in invariant-mass analyses for two-photon decays. The procedure does not make use of event mixing techniques and as such is based exclusively on an event-by-event analysis. Consequently, topological correlations of the event (e.g. jet structures) are automatically taken into account. By means of the decay process $π^{0} \to γγ$ it will be demonstrated how the procedure allows for determination of the $π^{0}$ yield from the observed decay photons.

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Nick van Eijndhoven, Wouter Wetzels. 2001-01-09. In-event background and signal reconstruction for two-photon invariant-mass analyses. https://doi.org/10.1016/s0168-9002(01)01558-3

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