Exclusive measurements of mean pion multiplicities in 4He-nucleus reactions from 200 to 800 MeV/nucleon

Exclusive measurements of mean pion multiplicities in 4He-nucleus reactions from 200 to 800 MeV/nucleon

Mean multiplicities of π + and π − in 4He collisions with C, Cu, and Pb at 200, 600, and 800, MeV/u, and with C and Pb at 400 MeV/u have been measured using the large solid angle detector Diogene. The dependence of pion multiplicity on projectile incident energy, target mass and proton multiplicity...

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Veröffentlicht in:Physics letters. B 1987-11, Vol.198 (2), p.139-142
Hauptverfasser: L'Hote, D., Alard, J.P., Augerat, J., Babinet, R., Brochard, F., Fodor, Z., Fraysse, L., Girard, J., Gorodetzky, P., Gosset, J., Laspalles, C., Lemaire, M.C., Lucas, B., Montarou, G., Parizet, M.J., Poitou, J., Racca, C., Schimmerling, W., Tamain, J.C., Terrien, Y., Valero, J., Cugnon, J., Vandermeulen, J.
Format: Artikel
Sprache:eng
Schlagworte:
Aerospace Medicine
Carbon
Copper
Energy Transfer
Helium
Ions
Lead
Mesons
Models, Theoretical
Monte Carlo Method
Nuclear Physics
Protons
Radiometry
Space life sciences
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Zusammenfassung:Mean multiplicities of π + and π − in 4He collisions with C, Cu, and Pb at 200, 600, and 800, MeV/u, and with C and Pb at 400 MeV/u have been measured using the large solid angle detector Diogene. The dependence of pion multiplicity on projectile incident energy, target mass and proton multiplicity is studied in comparison with intra-nuclear cascade predictions. The discrepancy between experimental results and theory is pointed out and discussed.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(87)91484-5