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arXiv · 2312.04971

Characterisation of a low-momentum high-rate muon beam monitor for the FAMU experiment at the CNAO-XPR beam facility

Riccardo Rossini·Roberto Benocci·Roberto Bertoni·Maurizio Bonesini·Stefano Carsi·Massimiliano Clemenza·Antonio de Bari·Marco Donetti·Carlo de Vecchi·Alessandro Menegolli·Alessio Mereghetti·Emiliano Mocchiutti·Christian Petroselli·Marco Cesare Prata·Marco Pullia·Gian Luca Raselli·Massimo Rossella·Simone Savazzi·Ludovico Tortora·Erik Silvio Vallazza
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Abstract

The FAMU experiment aims at an indirect measurement of the Zemach radius of the proton. The measurement is carried out on muonic hydrogen atoms produced through the low-momentum (50-60 MeV/c) muon beam a the RIKEN-RAL negative muon facility. The particle flux plays an important role in this measurement, as it is proportional to the number of muonic hydrogen atoms produced, which is the target of the FAMU experimental method. The beam monitor calibration technique and results, presented here, are meant to extract a reliable estimation of the muon flux during the FAMU data taking. These measurements were carried out at the CNAO synchrotron in Pavia, Italy, using proton beams and supported by Monte Carlo simulation of the detector in Geant4.

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Riccardo Rossini, Roberto Benocci, Roberto Bertoni, Maurizio Bonesini, Stefano Carsi, Massimiliano Clemenza, Antonio de Bari, Marco Donetti, Carlo de Vecchi, Alessandro Menegolli, Alessio Mereghetti, Emiliano Mocchiutti, Christian Petroselli, Marco Cesare Prata, Marco Pullia, Gian Luca Raselli, Massimo Rossella, Simone Savazzi, Ludovico Tortora, Erik Silvio Vallazza. 2023-12-08. Characterisation of a low-momentum high-rate muon beam monitor for the FAMU experiment at the CNAO-XPR beam facility. https://doi.org/10.1088/1748-0221%2F19%2F01%2Fc01024

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