Erratum to: “Performance and results of the RICH detector for kaon physics in Hall A at Jefferson Lab”

A proximity focusing RICH detector has been constructed for the hadron High Resolution Spectrometer (HRS) of Jefferson Lab Experimental Hall-A. This detector is intended to provide excellent hadron identification up to a momentum of 2.5GeV/c. The RICH uses a 15mm thick liquid perfluorohexane radiator in proximity focusing geometry to produce Cherenkov photons traversing a 100mm thick proximity gap filled with pure methane and converted into electrons by a thin film of CsI deposited on the cathode plane of a MWPC.