Measurements of x rays and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>γ</mml:mi></mml:math>rays from stopped kaons

Abstract

Intensities have been measured for 346 x-ray lines of kaonic atoms of elements and pure isotopes ranging from $Z=2$ through $Z=92$. Within experimental accuracy, isotopes of the same elements yielded equal intensities. However, a remarkable variation in intensities versus $Z$ was observed for kaonic transitions believed not to be significantly influenced by nuclear absorption. Fourteen x-ray lines from ${\ensuremath{\Sigma}}^{\ensuremath{-}}$-hyperonic atoms of light and medium-$Z$ elements were measured. Also observed were 29 nuclear $\ensuremath{\gamma}$-ray lines that followed kaon capture.