Search for Anomalous Fragments Produced in Collisions with Heavy Target Nuclei and in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>Δ</mi><mi>Z</mi><mo>=</mo><mn>1</mn><mn></mn></math></span> Peripheral Interactions

H. Drechsel; C. Brechtmann; W. Heinrich; J. Dreute; E. V. Benton

doi:10.1103/PhysRevLett.55.1258

Search for Anomalous Fragments Produced in Collisions with Heavy Target Nuclei and in $Δ Z = 1$ Peripheral Interactions

H. Drechsel, C. Brechtmann, W. Heinrich, J. Dreute, and E. V. Benton

Phys. Rev. Lett. 55, 1258 – Published 16 September 1985

Abstract

We exposed a stack of CR39 track detectors containing Ag foils to a 1.7-GeV/nucleon ${}^{56}{Fe}$ beam and investigated the anomalous mean-free-path effect. Neither the whole set of 7517 nor a subset of 2542 interacting fragments produced probably in the Ag target show an effect. By combining the data of this and an earlier experiment we can also exclude an effect for 3219 interacting fragments produced in $Δ Z = 1$ collisions.