Speaker
Patrawan Pasuwan
(Stockholm University)
Description
One of the important physics quantities for a collider experiment is luminosity — a
measurement of a number of collisions. By knowing the luminosity, the cross-section
of a process can be obtained. The ATLAS detector has a subdetector dedicated for
luminosity measurement called LUCID. Another complementary approach for
luminosity determination is by measuring the number of tracks from charged particles
inside the inner detector. The average number of tracks per event is linearly
proportional to the average number of inelastic collisions per bunch crossing and can
be used to calculate luminosity. The luminosity results in 2016 data, as well as
preliminary results in 2017 data, from track counting are presented and compared
with results from LUCID.
Primary author
Patrawan Pasuwan
(Stockholm University)
