Negative Hyperon Production in High-Energy Proton Interactions

Hungerbuhler, V. ; Majka, R. ; Marx, J.N. ; et al.
Phys.Rev.D 12 (1975) 1203-1210, 1975.
Inspire Record 104138 DOI 10.17182/hepdata.4668

Momentum spectra for forward Σ− and Ξ− production by protons on beryllium are presented. Σ− production data for two primary proton momenta are compared to test scaling of the invariant cross section. In addition, the observed single-particle momentum distributions are compared with single-particle spectra from other inclusive reactions initiated by protons.

6 data tables

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Measurement of particle production in proton induced reactions at 14.6-GeV/c

The E-802 collaboration Abbott, T. ; Akiba, Y. ; Beavis, D. ; et al.
Phys.Rev.D 45 (1992) 3906-3920, 1992.
Inspire Record 323473 DOI 10.17182/hepdata.3830

Particle production in proton-induced reactions at 14.6 GeV/c on Be, Al, Cu, and Au targets has been systematically studied using the E-802 spectrometer at the BNL-Alternating Gradient Synchrotron. Particles are measured in the angular range from 5° to 58° and identified up to momenta of 5, 3.5, and 8 GeV/c for pions, kaons, and protons, respectively. Mechanisms for particle production are discussed in comparison with heavy-ion-induced reactions at the same incident energy per nucleon.

105 data tables

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Forward pi+/- production in p-O2 and p-N2 interactions at 12 GeV/c

The HARP collaboration Catanesi, M.G. ; Radicioni, E. ; Edgecock, R. ; et al.
Astropart.Phys. 30 (2008) 124-132, 2008.
Inspire Record 790079 DOI 10.17182/hepdata.50531

Measurements of double-differential charged pion production cross-sections in interactions of 12 GeV/c protons on O_2 and N_2 thin targets are presented in the kinematic range 0.5 GeV/c < p_{\pi} < 8 GeV/c and 50 mrad < \theta_{\pi} < 250 mrad (in the laboratory frame) and are compared with p--C results. For p--N_2 (p--O_2) interactions the analysis is performed using 38576 (7522) reconstructed secondary pions. The analysis uses the beam instrumentation and the forward spectrometer of the HARP experiment at CERN PS. 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. In particular, the present results allow the common hypothesis that p--C data can be used to predict the p--N_2 and p--O_2 pion production cross-sections to be tested.

12 data tables

Double differential cross section for pion production in P-N2 interactions for the pion scattered polar angle range 50 to 100 mrad.

Double differential cross section for pion production in P-N2 interactions for the pion scattered polar angle range 100 to 150 mrad.

Double differential cross section for pion production in P-N2 interactions for the pion scattered polar angle range 150 to 200 mrad.

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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.

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Large-angle production of charged pions with 3-12.9 GeV/c incident protons on nuclear targets

The HARP collaboration Catanesi, M.G. ; Radicioni, E. ; Edgecock, R. ; et al.
Phys.Rev.C 77 (2008) 055207, 2008.
Inspire Record 786183 DOI 10.17182/hepdata.13425

Measurements of the double-differential charged pion production cross-section in the range of momentum 100 MeV/c < p < 800 MeV/c and angle 0.35 < \theta < 2.15 rad in proton-beryllium, proton-carbon, proton-aluminium, proton-copper, proton-tin, proton-tantalum and proton-lead collisions are presented. The data were taken with the large acceptance HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 GeV/c to 12.9 GeV/c hitting a target with a thickness of 5% of a nuclear interaction length.

37 data tables

Double-differential cross section for inclusive PI+ production in the LAB system with the BE target for a PI+ polar angle from 0.35 to 0.55 radians.

Double-differential cross section for inclusive PI+ production in the LAB system with the BE target for a PI+ polar angle from 0.55 to 0.75 radians.

Double-differential cross section for inclusive PI+ production in the LAB system with the BE target for a PI+ polar angle from 0.75 to 0.95 radians.

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Large-angle production of charged pions by 3 GeV/c - 12 GeV/c protons on carbon, copper and tin targets

The HARP collaboration Catanesi, M.G. ; Edgecock, R. ; Ellis, Malcolm ; et al.
Eur.Phys.J.C 53 (2008) 177-204, 2008.
Inspire Record 761546 DOI 10.17182/hepdata.51401

A measurement of the double-differential $\pi^{\pm}$ production cross-section in proton--carbon, proton--copper and proton--tin collisions in the range of pion momentum $100 \MeVc \leq p < 800 \MeVc$ and angle $0.35 \rad \le \theta <2.15 \rad$ is presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 \GeVc to 12 \GeVc hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was done using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. An elaborate system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential cross-sections at four incident proton beam momenta (3 \GeVc, 5 \GeVc, 8 \GeVc and 12 \GeVc).

54 data tables

Double-differential cross section for PI+ production from C in the LAB system for PI+ polar angle from 0.35 to 0.55 radians.

Double-differential cross section for PI+ production from C in the LAB system for PI+ polar angle from 0.55 to 0.75 radians.

Double-differential cross section for PI+ production from C in the LAB system for PI+ polar angle from 0.75 to 0.95 radians.

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Large-angle production of charged pions by 3 GeV/c - 12.9 GeV/c protons on beryllium, aluminium and lead targets

The HARP collaboration Catanesi, M.G. ; Radicioni, E. ; Edgecock, R. ; et al.
Eur.Phys.J.C 54 (2008) 37-60, 2008.
Inspire Record 761543 DOI 10.17182/hepdata.51357

Measurements of the double-differential $\pi^{\pm}$ production cross-section in the range of momentum $100 \MeVc \leq p < 800 \MeVc$ and angle $0.35 \rad \leq \theta < 2.15 \rad$ in proton--beryllium, proton--aluminium and proton--lead collisions are presented. The data were taken with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 \GeVc to 12.9 \GeVc hitting a target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber (TPC) placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross-sections at six incident proton beam momenta (3 \GeVc, 5 \GeVc, 8 \GeVc, 8.9 \GeVc (Be only), 12 \GeVc and 12.9 \GeVc (Al only)) and compared to previously available data.

54 data tables

Double-differential cross section for PI+ production from BE in the LAB system for PI+ polar angle from 0.35 to 0.55 radians.

Double-differential cross section for PI+ production from BE in the LAB system for PI+ polar angle from 0.55 to 0.75 radians.

Double-differential cross section for PI+ production from BE in the LAB system for PI+ polar angle from 0.75 to 0.95 radians.

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Measurement of the production of charged pions by protons on a tantalum target

The HARP collaboration Catanesi, M.G. ; Radicioni, E. ; Edgecock, R. ; et al.
Eur.Phys.J.C 51 (2007) 787-824, 2007.
Inspire Record 752890 DOI 10.17182/hepdata.51527

A measurement of the double-differential cross-section for the production of charged pions in proton--tantalum collisions emitted at large angles from the incoming beam direction is presented. The data were taken in 2002 with the HARP detector in the T9 beam line of the CERN PS. The pions were produced by proton beams in a momentum range from 3 \GeVc to 12 \GeVc hitting a tantalum target with a thickness of 5% of a nuclear interaction length. The angular and momentum range covered by the experiment ($100 \MeVc \le p < 800 \MeVc$ and $0.35 \rad \le \theta <2.15 \rad$) is of particular importance for the design of a neutrino factory. The produced particles were detected using a small-radius cylindrical time projection chamber (TPC) placed in a solenoidal magnet. Track recognition, momentum determination and particle identification were all performed based on the measurements made with the TPC. An elaborate system of detectors in the beam line ensured the identification of the incident particles. Results are shown for the double-differential cross-sections ${{\mathrm{d}^2 \sigma}} / {{\mathrm{d}p\mathrm{d}\theta}}$ at four incident proton beam momenta (3 \GeVc, 5 \GeVc, 8 \GeVc and 12 \GeVc). In addition, the pion yields within the acceptance of typical neutrino factory designs are shown as a function of beam momentum. The measurement of these yields within a single experiment eliminates most systematic errors in the comparison between rates at different beam momenta and between positive and negative pion production.

18 data tables

Double-differential cross section for PI+ production in the LAB system for PI+ polar angle from 0.35 to 0.55 radians.

Double-differential cross section for PI+ production in the LAB system for PI+ polar angle from 0.55 to 0.75 radians.

Double-differential cross section for PI+ production in the LAB system for PI+ polar angle from 0.75 to 0.95 radians.

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Measurement of charged particle production from 450-GeV/c protons on beryllium

The NA56/SPY collaboration Ambrosini, G. ; Arsenescu, R. ; Bernier, K. ; et al.
Eur.Phys.J.C 10 (1999) 605-627, 1999.
Inspire Record 499058 DOI 10.17182/hepdata.49181

This paper presents the results on charged particle yields and production ratios as measured by the NA56/SPY experiment for 450 GeV/c proton interactions on beryllium targets. The data cover a seconda

34 data tables

Positive particle yield from the 100mm Be target. Data are corrected for the pion or proton flux coming from strange particle decays.

Negative particle yield from the 100mm Be target. Data are corrected for the pion or antiproton flux coming from strange particle decays.

Positive particle yield from the 100mm Be target. Data are NOT corrected for the pion or proton flux coming from strange particle decays.

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Pion yield from 450-GeV/c protons on beryllium.

The SPY collaboration Ambrosini, G. ; Arsenescu, R. ; Bernier, K. ; et al.
Phys.Lett.B 425 (1998) 208-214, 1998.
Inspire Record 470999 DOI 10.17182/hepdata.49490

This paper reports on the charged pion production yields measured by the SPY/NA56 experiment for 450 GeV/c proton interactions on beryllium targets. The present data cover a secondary momentum range from 7 GeV/c to 135 GeV/c in the forward direction. An experimental accuracy ranging from 5 to 10%, depending on the beam momentum, has been achieved, limited mainly by the knowledge of the beam acceptance. These results will be relevant in the calculation of neutrino fluxes in present and future neutrino beams.

2 data tables

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