Nuclear many-body effects on particle emission following muon capture on Si and Ca

SiとCaのミュオン捕獲後の粒子放出に対する原子核の多体効果

湊 太志   ; 内藤 智也*; 岩本 修  

Minato, Futoshi; Naito, Tomoya*; Iwamoto, Osamu

Muon captures on nuclei have provided us a plenty of knowledge of nuclear properties. Recently, this nature attracts attention again in electronics, because it is argued that charged particle emissions following muon capture on silicon triggers non-negligible soft errors in semiconductors. To investigate the particle emissions from nuclear physics point of view, we develop a new approach using a microscopic model of muon capture and an up-to-date particle emission models. We paid attention to the muon capture rates, the particle emission spectra, and the multiplicities that have a close interrelation with each other, and found that the nuclear many-body correlation including two-particle two-hole excitations is a key to explain them simultaneously.