Measurement of the production cross-sections of $\pi^\pm$ in p-C and $\pi^\pm$-C interactions at 12 GeV/c

The HARP collaboration Catanesi, M.G. ; Radicioni, E. ; Edgecock, R. ; et al.
Astropart.Phys. 29 (2008) 257-281, 2008.
Inspire Record 778842 DOI 10.17182/hepdata.50415

The results of the measurements of the double-differential production cross-sections of pions in p-C and $\pi^\pm$-C interactions using the forward spectrometer of the HARP experiment are presented. The incident particles are 12 GeV/c protons and charged pions directed onto a carbon target with a thickness of 5% of a nuclear interaction length. For p-C interactions the analysis is performed using 100035 reconstructed secondary tracks, while the corresponding numbers of tracks for $\pi^-$-C and $\pi^+$-C analyses are 106534 and 10122 respectively. Cross-section results are presented in the kinematic range 0.5 GeV/c $\leq p_{\pi} <$ 8 GeV/c and 30 mrad $\leq \theta_{\pi} <$ 240 mrad in the laboratory frame. The measured cross-sections have a direct impact on the precise calculation of atmospheric neutrino fluxes and on the improved reliability of extensive air shower simulations by reducing the uncertainties of hadronic interaction models in the low energy range.

19 data tables

Double-differential cross section for 12 GeV proton-carbon interactions with the scattered polar angle 30 to 60 mrad.

Double-differential cross section for 12 GeV proton-carbon interactions with the scattered polar angle 60 to 90 mrad.

Double-differential cross section for 12 GeV proton-carbon interactions with the scattered polar angle 90 to 120 mrad.

More…