The NA62 experiment aims to measure the(+→+̄)with a 10% precision. One of the main backgroundscomes from the decay+→+, therefore a highly powerful pion/muon separation is needed. The NA62 RICH,together with the calorimeter system, provides an accurate particle identification which has been essential toobtain the first results of the NA62+→+̄analysis, based on 2016 data. Two different algorithms have beenexploited which, used in combination, allowed to get a pion reconstruction and identification efficiency of 75%,with a muon suppression factor of about 500, in the momentum range 15–35 GeV/c.
The role of the NA62 RICH in the BR(K + →π + νν̄) measurement
Volpe R.;Anzivino G.;Aisa D.;Barbanera M.;Bizzarri M.;Brizioli F.;Campeggi C.;Imbergamo E.;Lollini R.;Piandani R.;Piccini M.;Piluso A.;Scolieri G.
2020
Abstract
The NA62 experiment aims to measure the(+→+̄)with a 10% precision. One of the main backgroundscomes from the decay+→+, therefore a highly powerful pion/muon separation is needed. The NA62 RICH,together with the calorimeter system, provides an accurate particle identification which has been essential toobtain the first results of the NA62+→+̄analysis, based on 2016 data. Two different algorithms have beenexploited which, used in combination, allowed to get a pion reconstruction and identification efficiency of 75%,with a muon suppression factor of about 500, in the momentum range 15–35 GeV/c.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.
