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First observation of radiative photons associated with the μ−transfer process from (tμ−) to3He through an intermediate (t3Heμ−) mesomolecule

Authors
Journal
Physics Letters B
0370-2693
Publisher
Elsevier
Publication Date
Volume
527
Identifiers
DOI: 10.1016/s0370-2693(01)01497-6
Keywords
  • Experiments
Disciplines
  • Physics

Abstract

Abstract For the first time, we have observed the 6.76 keV radiative transition photons associated with the μ − transfer process from (tμ −) atoms to 3He nuclei through intermediate (t 3He μ − ) mesomolecule formation in a solid T 2 target. The radiative decay branching ratio of the (t 3He μ − ) mesomolecule and the muon transfer rate were determined and compared with theoretical values. We also studied an accumulation process of 3He atoms in a solid T 2 target by observing the neutron decay rates originating from t–t muon-catalyzed fusions. Their time dependence indicates a sudden 3He bubble formation in the solid T 2 at an atomic concentration of 130 ppm.

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