I. Boyko

HARP-CDP hadroproduction data: comparison with FLUKA and GEANT4 simulations

We report on the comparison of production characteristics of secondary protons and charged pions in the interactions of protons and charged pions with momentum between 3xa0GeV/c and 15xa0GeV/c with beryllium, copper, and tantalum nuclei, with simulations by the FLUKA program and the Geant4 tool kit. Overall production cross-sections are reasonably well reproduced, within factors of two. In more detail, there are areas with poor agreement that are unsatisfactory and call for modelling improvements. Overall, the current FLUKA simulation fares better than the current Geant4 simulation.

Revisiting the LSND anomaly. I. Impact of new data

This paper, together with a subsequent paper, questions the so-called LSND anomaly: a 3.8 {sigma} excess of anti-electronneutrino interactions over standard backgrounds, observed by the LSND Collaboration in a beam dump experiment with 800 MeV protons. That excess has been interpreted as evidence for the anti-muonneutrino{to} anti-electronneutrino oscillation in the {Delta}m2 range from 0.2 eV2 to 2 eV2. Such a {Delta}m2 range is incompatible with the widely accepted model of oscillations between three light neutrino species and would require the existence of at least one light sterile neutrino. In this paper, new data on pion production by protons on nuclei are presented, and four decades old data on pion production by neutrons on nuclei are recalled, that together increase significantly the estimates of standard backgrounds in the LSND experiment, and decrease the significance of the LSND anomaly from 3.8 {sigma} to 2.9 {sigma}. In a subsequent paper, in addition the LSND Collaborations data analysis will be questioned, rendering a further reduction of the significance of the LSND anomaly.

Cross-sections of large-angle hadron production in proton- and pion-nucleus interactions VII: tin nuclei and beam momenta from \pm3 GeV/c to \pm15 GeV/c

We report on double-differential inclusive cross-sections of the production of secondary protons, charged pions, and deuterons, in the interactions with a 5% λint thick stationary tin target, of proton and pion beams with momentum from ±3xa0GeV/c to ±15xa0GeV/c. Results are given for secondary particles with production angles 20○<θ<125○. Cross-sections on tin nuclei are compared with cross-sections on beryllium, carbon, copper, tantalum and lead nuclei.

Revisiting the 'LSND anomaly' II: critique of the data analysis

This paper, together with a preceding paper, questions the so-called ``LSND anomaly: a

The HARP Time Projection Chamber: Characteristics and physics performance

3.8ensuremath{sigma}

Cross-sections of large-angle hadron production in proton- and pion-nucleus interactions VI: carbon nuclei and beam momenta from pm 3 GeV/c to pm 15 GeV/c

excess of

Reply to 'Corrections to the HARP-CDP Analysis of the LSND Neutrino Oscillation Backgrounds'

{overline{ensuremath{nu}}}_{mathrm{e}}