NA62 spectrometer: a low mass straw tracker

11 Jun 2011, 11:20
20m
Superior B (Sheraton Hotel)

Superior B

Sheraton Hotel

Oral Presentation Gaseous Detectors Gaseous Detectors

Speaker

Antonino Sergi (CERN)

Description

The NA62 experiment at CERN, aiming at a precision measurement of the ultra-rare decay K+ -> pi+ nu nubar, relies on kinematical rejection up to 10^5 (~10^10 is needed in total). One of the limiting factors to achieve this goal is the multiple scattering in the magnetic spectrometer for kaon decay products; therefore an almost massless (~1.5% X0) straw tracker has been designed to operate in vacuum, to be able to install it inside the decay volume. A vacuum tight prototype was built and tested in 2010: efficiency (~99%), rate capability and single straw resolution (~200um) were verified. The construction of the first chamber started in 2011.

Author

Presentation materials