Muonic atom deexcitation via formation of metastable molecular states in light of experimental verification
2001 (English)In: Hyperfine Interactions, ISSN 0304-3843, E-ISSN 1572-9540, Vol. 138, no 04-jan, 285-288 p.Article in journal (Refereed) Published
In a recent experiment performed at PSI, a peak in the time-of-flight distribution of pmu(1s) atoms could be identified with decay of ppmu* molecular ions situated below the 2s threshold, providing 900 eV of kinetic energy to the pmu atom. This finding may be interpreted in terms of the side path model which suggests that metastable muonic molecules may form with high probability in resonant collisions between muonic hydrogen in the 2s state and hydrogen molecules, e.g., pmu(2s)H-2-->[(ppmu*)(vJ)(pq) - pee(])v(K) --> [(ppmu*)(v'J')(p'q') - pe](+) + e(-). The Coulombic decay of the Auger stabilised ppmu* molecular ion then leads to the formation of highly energetic pmu(1s) atoms. In the present paper calculations of resonant formation rates in pure hydrogen are presented and compared to the quenching rate of pmu(2s) atoms measured at low hydrogen density.
Place, publisher, year, edition, pages
2001. Vol. 138, no 04-jan, 285-288 p.
metastable muonic molecule, muon deexcitation, catalyzed fusion, dt-mu
IdentifiersURN: urn:nbn:se:kth:diva-22082ISI: 000179486600045OAI: oai:DiVA.org:kth-22082DiVA: diva2:340780
QC 20100525 NR 201408042010-08-102010-08-102012-01-31Bibliographically approved