Henning, W.
NUCLEUS NUCLEUS --> PI0 X
SLOPE
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Investigation of pion absorption in heavy ion induced subthreshold pi0 production

Mayer, R.S. ; Henning, W. ; Holzmann, R. ; et al.
Phys.Rev.Lett. 70 (1993) 904-907, 1993.
Inspire Record 339110 DOI 10.17182/hepdata.42032

We present results from an experimental study of reabsorption effects in subthreshold π0 production in the reaction Xe129+197Au at 44 MeV/nucleon. Within the picture of pion generation in nucleon-nucleon scattering we deduce, from our data and from a comparison with the systematics of production cross sections available for lighter reaction systems, information on the π0 absorption length in nuclear matter. For the π0 kinetic-energy range ≃5–100 MeV the energy-averaged λabs and its momentum dependence are obtained, and compared with optical-model calculations.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


Neutral meson production in relativistic heavy ion collisions

The TAPS collaboration Berg, F.D. ; Boonstra, A. ; Braak, H.P. ; et al.
Z.Phys.A 340 (1991) 297-302, 1991.
Inspire Record 324774 DOI 10.17182/hepdata.16588

The production ofπ0 andη mesons has been studied in the reactions20Ne +Al at 350 MeV/u and40Ar + Ca at 1.0 GeV/u. Rapidity distributions and transverse momentum spectra have been measured and are compared to thermal distributions.

2 data tables
Table 1

THE SPECTRUM (1/PT)*D(SIG)/D(PT) HAS BEEN FITTED BY A THERMAL DISTRIBUTION SQRT(MT)*EXP(-SLOPE*MT).

Table 2

THE SPECTRUM (1/PT)*D(SIG)/D(PT) HAS BEEN FITTED BY A THERMAL DISTRIBUTION SQRT(MT)*EXP(-SLOPE*MT).