The FAMU experiment aims to accurately measure the hyperfine splitting of the ground state of the muonic hydrogen atom. A measurement of the transfer rate of muons from hydrogen to heavier gases is necessary for this purpose. In June 2014, within a preliminary experiment, a pressurized gas-target was exposed to the pulsed low-energy muon beam at the RIKEN RAL muon facility (Rutherford Appleton Laboratory, UK). The main goal of the test was the characterization of both the noise induced by the pulsed beam and the X-ray detectors. The apparatus, to some extent rudimental, has served admirably to this task. Technical results have been published that prove the validity of the choices made and pave the way for the next steps. This paper presents the results of physical relevance of measurements of the muon transfer rate to carbon dioxide, oxygen, and argon from non-thermalized excited µp atoms. The analysis methodology and the approach to the systematics errors are useful for the subsequent study of the transfer rate as function of the kinetic energy of the µp currently under way.

Mocchiutti, E., Bonvicini, V., Carbone, R., Danailov, M., Furlanetto, E., Gadedjisso-Tossou, K., et al. (2017). First FAMU observation of muon transfer from µp atoms to higher-Z elements [Altro].

First FAMU observation of muon transfer from µp atoms to higher-Z elements

Guffanti D.;Baccolo G.;Benocci R.;Bonesini M.;Clemenza M.;Maggi V.;Nastasi M.;Previtali E.;Meneghini S.;
2017

Abstract

The FAMU experiment aims to accurately measure the hyperfine splitting of the ground state of the muonic hydrogen atom. A measurement of the transfer rate of muons from hydrogen to heavier gases is necessary for this purpose. In June 2014, within a preliminary experiment, a pressurized gas-target was exposed to the pulsed low-energy muon beam at the RIKEN RAL muon facility (Rutherford Appleton Laboratory, UK). The main goal of the test was the characterization of both the noise induced by the pulsed beam and the X-ray detectors. The apparatus, to some extent rudimental, has served admirably to this task. Technical results have been published that prove the validity of the choices made and pave the way for the next steps. This paper presents the results of physical relevance of measurements of the muon transfer rate to carbon dioxide, oxygen, and argon from non-thermalized excited µp atoms. The analysis methodology and the approach to the systematics errors are useful for the subsequent study of the transfer rate as function of the kinetic energy of the µp currently under way.
Altro
Si
Scientifica
Muonic hydrogen; Oxygen; Tranfer rate
English
Scopus ID 2-s2.0-85094374735 - Document Type: Preprint
Mocchiutti, E., Bonvicini, V., Carbone, R., Danailov, M., Furlanetto, E., Gadedjisso-Tossou, K., et al. (2017). First FAMU observation of muon transfer from µp atoms to higher-Z elements [Altro].
Mocchiutti, E; Bonvicini, V; Carbone, R; Danailov, M; Furlanetto, E; Gadedjisso-Tossou, K; Guffanti, D; Pizzolotto, C; Rachevski, A; Stoychev, L; Vallazza, E; Zampa, G; Niemela, J; Ishida, K; Adamczak, A; Baccolo, G; Benocci, R; Bertoni, R; Bonesini, M; Chignoli, F; Clemenza, M; Curioni, A; Maggi, V; Mazza, R; Moretti, M; Nastasi, M; Previtali, E; Bakalov, D; Danev, P; Stoilov, M; Baldazzi, G; Campana, G; D'Antone, I; Furini, M; Fuschino, F; Labanti, C; Margotti, A; Meneghini, S; Morgante, G; Rignanese, L; Rossi, P; Zuffa, M; Cervi, T; De Bari, A; Menegolli, A; De Vecchi, C; Nardo, R; Rossella, M; Tomaselli, A; Colace, L; De Vincenzi, M; Iaciofano, A; Somma, F; Tortora, L; Ramponi, R; Vacchi, A
File in questo prodotto:
File Dimensione Formato  
1708.03172.pdf

accesso aperto

Tipologia di allegato: Submitted Version (Pre-print)
Dimensione 191.93 kB
Formato Adobe PDF
191.93 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/292332
Citazioni
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
Social impact