Nonlinear Density Effect in the Transmission of K_{2} Mesons through Matter
Abstract
We note that the attenuation of a monochromatic beam of K_{2} mesons in an absorber is not simply describable in terms of a single "mean free path," even when the extent of the absorber is large in comparison with the K_{1} mean decay length. The normal attenuation factor exp (NσL) is to be corrected by a factor whose logarithm is nonlinear in the density N. The magnitude of this extra effect is discussed with the aid of a simpleminded model. The relation of the effect to the K_{1}K_{2} mass difference is briefly noted.
 Publication:

Physical Review
 Pub Date:
 December 1966
 DOI:
 10.1103/PhysRev.152.1486
 Bibcode:
 1966PhRv..152.1486B