K+ total cross sections as a test for nucleon swelling

Y. Mardor, E. Piasetsky, J. Alster, D. Ashery, M. A. Moinester, A. I. Yavin, S. Bart, R. E. Chrien, P. H. Pile, R. J. Sutter, R. A. Krauss, J. C. Hiebert, R. L. Stearns, T. Kishimoto, R. R. Johnson, R. Olshevsky

Research output: Contribution to journalArticlepeer-review


A measurement of the K+ total cross sections on carbon and deuterium and their ratios from 450 to 740 MeV/c has been carried out at the Brookhaven Alternating Gradient Synchrotron. The observed ratios depart significantly from those expected from conventional nuclear physics calculations. The data are compared to models of nucleon swelling, which ascribe the effect to quark deconfinement or, alternatively, to vector-meson exchange with density-dependent masses.

Original languageEnglish
Pages (from-to)2110-2113
Number of pages4
JournalPhysical Review Letters
Issue number17
StatePublished - 1990


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