Status of the detector setup for the FAMU experiment at RIKEN-RAL for a precision measurement of the Zemach radius of the proton in muonic hydrogen
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Published:2024-02-01
Issue:02
Volume:19
Page:C02034
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ISSN:1748-0221
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Container-title:Journal of Instrumentation
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language:
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Short-container-title:J. Inst.
Author:
Rossini R.ORCID, Adamczak A., Bakalov D., Baldazzi G., Banfi S., Baruzzo M., Benocci R., Bertoni R., Bonesini M., Bonvicini V., Cabrera H., Carsi S., Cirrincione D., Clemenza M., Colace L., Danailov M.B., Danev P., de Bari A., de Vecchi C., Fasci E., Gadedjisso-Tossou K.S., Gaigher R., Gianfrani L., Hillier A.D., Ishida K., King P.J.C., Maggi V., Menegolli A., Mocchiutti E., Moretti L., Morgante G., Niemela J., Petroselli C., Pirri A., Pizzolotto C., Prata M.C., Pullia A., Pullia M., Ramponi R., Rossella M., Sarkar R., Sbrizzi A., Stoilov M., Suarez-Vargas J.J., Toci G., Tortora L., Vallazza E.S., Yokoyama K., Vacchi A.
Abstract
Abstract
The FAMU experiment at RIKEN-RAL is a muonic atom experiment with the aim to determine the Zemach radius of the proton by measuring the 1s hyperfine splitting in muonic hydrogen. The activity of the FAMU Collaboration in the years 2015–2023 enabled the final optimisation of the detector-target setup as well as the gas working condition in terms of temperature, pressure and gas mixture composition. The experiment has started its data taking in July 2023. The status of the detector setup for the 2023 experimental runs, for the beam characterisation and muonic X-ray detection in the 100–200 keV energy range, is presented and discussed.
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