The NA62 experiment at CERN, aimed to measure K(+) -> pi + v (v) over bar branching fraction (O(10(-10))), relies on a Neon based RICH detector for pi/mu separation, time measurement and level 0 trigger. The experimental requirements for this detector are: a muon contamination in pion samples lower than 5 x 10(-3) in the momentum range 15-35 GeV/c and a time resolution on the charged track better than 100 ps. A prototype of such a detector was built and tested in 2009: it consists of a full length (approximate to 18 m) Ne filled vessel equipped with a spherical mirror and pi/mu PMs on its focal plane, located about 17 m upstream of the mirror. This prototype was tested at CERN SPS on a positive hadron beam, in the required momentum range, to measure the nip separation and to confirm the time resolution obtained with a previous prototype; the p misidentification probability is about 0.7% and the time resolution is better than 100 ps in the whole momentum range. (C) 2010 Elsevier B.V. All rights reserved.

Pion-Muon separation with a RICH prototype for the NA62 experiment RID F-3326-2011

Giudic S;LAMANNA, GIANLUCA;SOZZI, MARCO STANISLAO;
2010-01-01

Abstract

The NA62 experiment at CERN, aimed to measure K(+) -> pi + v (v) over bar branching fraction (O(10(-10))), relies on a Neon based RICH detector for pi/mu separation, time measurement and level 0 trigger. The experimental requirements for this detector are: a muon contamination in pion samples lower than 5 x 10(-3) in the momentum range 15-35 GeV/c and a time resolution on the charged track better than 100 ps. A prototype of such a detector was built and tested in 2009: it consists of a full length (approximate to 18 m) Ne filled vessel equipped with a spherical mirror and pi/mu PMs on its focal plane, located about 17 m upstream of the mirror. This prototype was tested at CERN SPS on a positive hadron beam, in the required momentum range, to measure the nip separation and to confirm the time resolution obtained with a previous prototype; the p misidentification probability is about 0.7% and the time resolution is better than 100 ps in the whole momentum range. (C) 2010 Elsevier B.V. All rights reserved.
2010
Angelucci, B; Anzivino, G; Avanzini, C; Biino, C; Bizzeti, A; Bucci, F; Cassese, A; Cenci, P; Ciaranfi, R; Collazuol, G; Falaleev, V; Galeotti, S; Giu...espandi
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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: https://hdl.handle.net/11568/142133
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 56
  • ???jsp.display-item.citation.isi??? 49
social impact