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arXiv · hep-ph/0607294

Neutrino reconstruction with topological information

S. Dambach·U. Langenegger·A. Starodumov
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Abstract

In general a decay with a missing (not detected) particle can not be fully reconstructed apart from a few exceptions. For example, if the momentum of the decaying particle is known or if the missing energy in an event is measured precisely, then the missing particle 4-momentum can be determined. Here a new method is proposed that utilizes additional information about the topology of a decay: The direction from the primary to the secondary vertex combined with momentum conservation allows the determination of the missing particle momentum up to a twofold ambiguity. The semileptonic decay of the Bs mesons is considered as an example to illustrate this method and to compare its performance against conventional approaches.

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S. Dambach, U. Langenegger, A. Starodumov. 2006-10-30. Neutrino reconstruction with topological information. https://doi.org/10.1016/j.nima.2006.08.144

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