Speaker
Marco Grassi
(PI)
Description
A new cylindrical drift chamber for the MEG-II experiment is currently under construction.
The chamber is used to track low momentum positrons from the $\mu^+$ decays to search for $\mu^+ \rightarrow e^+ \gamma$ events.
The chamber is made of very small drift cells, placed in stereo configuration for longitudinal hit localisation and operated in a helium-isobutane gas mixtures. The use of thin aluminium wires and the light gas mixture set the total radiation length of the chamber to only $1.6 \times 10^{-3} X_0$ allowing for a momentum resolution of
$\approx 120$ keV/c .
Primary author
Marco Venturini
(PI)
Co-authors
Alessandro Massimo Baldini
(PI)
Cecilia Voena
(ROMA1)
Donato Nicolò
(PI)
Fabrizio Cei
(PI)
Francesco Grancagnolo
(LE)
Francesco Renga
(ROMA1)
Giovanni Signorelli
(PI)
Luca Galli
(PI)
Marco Grassi
(PI)
Marco Panareo
(LE)
