A new cylindrical drift chamber is currently under construction for the MEG II experiment. The chamber is meant to track low momentum positrons from μ+ decays to search for μ+→e+γ events. The detector is segmented in very small drift cells, placed in stereo configuration and operated in a helium–isobutane gas mixture. The use of thin aluminium wires and light gas mixture set the total radiation length of the chamber to only 1.6×10−3 X0 per track turn allowing for a momentum resolution of ~120 keV/c.
A new cylindrical drift chamber for the MEG II experiment
CHIARELLO, GIANLUIGI;CHIRI, CLAUDIO;PANAREO, Marco;PEPINO, AURORA;PINTO, Carlo;TASSIELLI, GIOVANNI FRANCESCO;
2016-01-01
Abstract
A new cylindrical drift chamber is currently under construction for the MEG II experiment. The chamber is meant to track low momentum positrons from μ+ decays to search for μ+→e+γ events. The detector is segmented in very small drift cells, placed in stereo configuration and operated in a helium–isobutane gas mixture. The use of thin aluminium wires and light gas mixture set the total radiation length of the chamber to only 1.6×10−3 X0 per track turn allowing for a momentum resolution of ~120 keV/c.File in questo prodotto:
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