Forward production of charged pions with incident π± on nuclear targets measured at the CERN PS

Abstract

Measurements of the double-differential π ± production cross-section in the range of momentum 0.5 GeV/c ≤ p ≤ 8.0 GeV/c and angle 0.025 rad ≤ θ ≤ 0.25 rad in interactions of charged pions on beryllium, carbon, aluminium, copper, tin, tantalum and lead are presented. These data represent the first experimental campaign to systematically measure forward pion hadroproduction.The data were taken with the large acceptance HARP detector in the T9 beam line of the CERN PS. Incident particles, impinging on a 5% nuclear interaction length target, were identified by an elaborate system of beam detectors. The tracking and identification of the produced particles was performed using the forward spectrometer of the HARP detector. Results are obtained for the doubledifferential cross-sections d 2 σ/dpdΩ mainly at four incident pion beam momenta (3 GeV/c,

Measurements of forward proton production with incident protons and charged pions on nuclear targets at the CERN Proton Synchroton

“…The analysis of the results on charged pion production with charged pion beams on the full range of targets can be found in Ref. [19] 1 .…”

Forward production of charged pions with incident protons on nuclear targets at the CERN Proton Synchrotron

“…These data, together with those published in Ref. [13] of great interest for corrections of secondary interactions in detector studies in particle physics experiments.…”

“…[2,4,5,13], where with respect to our first paper on forward pion production in p-Al interactions [1], a number of improvements to the analysis techniques and detector simulation had been made. Tracks are reconstructed in the drift chambers downstream of the magnet.…”

New Hadroproduction results from the HARP/PS214 experiment at CERN PS

“…On average the total integrated (differential) systematic error is around 5 − 6(10 − 11)%, with statistical errors of the same order. Final results on p-A and π ± -A interactions have been reported in references [9] and [10]. The full…”