Reinhard Stock, Rudolf Bock, R. Brockman, John W. Harris, Andres Sandoval, Herbert Ströbele, Kevin L. Wolf, Howel G. Pugh, Lee S. Schroeder, M. Maier, Rainer Arno Ernst Renfordt, Ángel Dacal, Maria Esther Ortiz
- The negative-pion multiplicity is measured for central collisions of 40Ar with KCl at eight energies from 0.36 to 1.8 GeV/nucleon and for 4He on KCl and 40Ar on BaI2 at 977 and 772 MeV/nucleon, respectively. A systematic discrepancy with a cascade-model calculation which fits proton- and pion-nucleus cross sections but omits potential-energy effects is used to derive the energy going into bulk compression of the system. A value of the incompressibility constant of K=240 MeV is extracted in a parabolic form of the nuclear-matter equation of state.
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