Evidence of Anomalous Behavior of Relativistic Alpha Particles Emitted in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>-Emulsion Interaction at 4.5 GeV/<i>c</i> per Nucleon

Dipak Ghosh; Jaya Roy; Dipak Banerjee; Anuradha Dutta; Ranjan Sengupta; Kaushik Sengupta; Sadhan Naha

doi:10.1103/PhysRevLett.54.396

Evidence of Anomalous Behavior of Relativistic Alpha Particles Emitted in ${}^{12}C$ -Emulsion Interaction at 4.5 GeV/c per Nucleon

Dipak Ghosh, Jaya Roy, Dipak Banerjee, Anuradha Dutta, Ranjan Sengupta, Kaushik Sengupta, and Sadhan Naha

Phys. Rev. Lett. 54, 396 – Published 4 February 1985

Abstract

This paper presents evidence of the anomalous interaction mean free path of the relativistic alpha particles emitted from the interaction of ${}^{12}C$ with emulsion nuclei at 4.5 GeV/c per nucleon. The tracks were followed systematically through the stack. The detailed measurements show clearly that the interaction mean free path is anomalously shorter for fewer centimeters after their emission. The results have been compared with other results obtained from both accelerator and cosmic-ray data.