Measurement of the inelastic pPb cross section at 5.02 TeV
Collaboration
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Abstract:
A measurement of the inelastic proton-lead (pPb) cross section at a
nucleon-nucleon centre-of-mass energy of TeV is presented
using the CMS detector at the LHC. Inelastic collisions are tagged
using the forward calorimeters at pseudorapidities . Two
different event selections are used: (i) a coincidence of both sides
of the detector, and (ii) a single-sided event selection. These two
selections have different sensitivity to contributions from photon
induced (p) collisions and hadronic diffractive
interactions. The value of the hadronic inelastic cross section is
measured within the CMS acceptance and extrapolated to its total
value. The photon-induced contribution is subtracted. The final result
is b. The uncertainty is dominated by
the luminosity determination. This measurement of the inelastic cross
section is consistent with the expectation from the Glauber approach.Note:
- Preliminary results
- Data
- cross section: measured
- CMS
- CERN LHC Coll
- diffraction
- rapidity
- model: Glauber
- experimental results
- angular correlation
- p nucleus: inelastic scattering
References(30)
Figures(20)
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