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arXiv · 1111.5768

The NA62 LAV front-end electronics

A. Antonelli·G. Corradi·M. Moulson·C. Paglia·M. Raggi·T. Spadaro·D. Tagnani·F. Ambrosino·D. Di Filippo·P. Massarotti·M. Napolitano·G. Saracino·B. Angelucci·F. Costantini·R. Fantechi·S. Gallorini·S. Giudici·I. Mannelli·F. Raffaelli·S. Venditti·G. D'Agostini·E. Leonardi·V. Palladino·M. Serra·P. Valente
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Abstract

The branching ratio for the decay $K^+ \to \pi^+\nu\bar{\nu}$ is sensitive to new physics; the NA62 experiment will measure it to within about 10%. To reject the dominant background from channels with final state photons, the large-angle vetoes (LAVs) must detect particles with better than 1 ns time resolution and 10% energy resolution over a very large energy range. Our custom readout board uses a time-over-threshold discriminator coupled to a TDC as a straightforward solution to satisfy these requirements. A prototype of the readout system was extensively tested together with the ANTI-A2 large angle veto module at CERN in summer 2010.

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A. Antonelli, G. Corradi, M. Moulson, C. Paglia, M. Raggi, T. Spadaro, D. Tagnani, F. Ambrosino, D. Di Filippo, P. Massarotti, M. Napolitano, G. Saracino, B. Angelucci, F. Costantini, R. Fantechi, S. Gallorini, S. Giudici, I. Mannelli, F. Raffaelli, S. Venditti, G. D'Agostini, E. Leonardi, V. Palladino, M. Serra, P. Valente. 2011-11-24. The NA62 LAV front-end electronics. https://doi.org/10.1088/1748-0221/7/01/c01097

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