Speaker
Alessia Rita Tricomi
(CT)
Description
The LHCf experiment is aimed to provide precise measurements of the spectra of
neutral particles produced in the very forward region at LHC. These measurements
provide a calibration tool to tune the hadronic interaction models used by groundbased
cosmic rays experiments up to the highest energy currently available at
accelerator facilities and are hence of fundamental importance to interpret the EAS
results in terms of primary cosmic ray properties.
In order to achieve this goal, LHCf makes use of two small sampling calorimeters
installed at ±140m from LHC IP1, so that it can detect neutral particles produced by
p-p collisions having pseudo-rapidity η > 8.4.
LHCf has taken data in p-p collisions at different energies (√s = 0.9 TeV, 2.76 TeV, 7
TeV and 13 TeV) and in p-Pb collisions (√sNN = 5.02 TeV). In this talk, a summary of
the main results achieved by the Collaboration will be given showing the comparison
with Monte Carlo model predictions with particular emphasis to the π0
spectra which offer the possibility to study pT and pz spectra, to test Feynman scaling hypothesis and
to estimate the nuclear modification factor.
Primary author
Alessia Rita Tricomi
(CT)
