Measurement of the inclusive energy spectrum in the very forward direction in proton-proton collisions at sqrt(s) = 13 TeV

Understand

The differential cross section for inclusive particle production as a function of energy in proton-proton collisions at a center-of-mass energy of 13 TeV is measured in the very forward region of the CMS detector.

• The measurement is based on data collected with the CMS apparatus at the LHC, and corresponds to an integrated luminosity of 0.35 inverse microbarns.
• The energy is measured in the CASTOR calorimeter, which covers the pseudorapidity region -6.6 < eta < -5.2.
• The results are given as a function of the total energy deposited in CASTOR, as well as of its electromagnetic and hadronic components.