Metastability of the muonic boron 2S state

K. Kirch, D. Abbott, B. Bach, P. Dececco, P. Hauser, D. Horváth, F. Kottmann, J. Missimer, R. T. Siegel, L. M. Simons, D. Viel

Research output: Contribution to journalArticle

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Abstract

The cascade of muonic boron and the two-photon decay 2S → 1S have been investigated. The x-ray measurement with Ge and Si(Li) detectors was performed at low target gas pressures of pure B2H6 and admixtures with He. The 2S population of μB is found to be ε2S = 3.1(2)%. Cascade calculations indicate that more than half of the 2S states are populated with an empty electron shell. Two-photon decays have been observed in mixtures of B2H6 in He at partial diborane pressures of 67 Pa and below. The measured fraction of metastable 2S states per μB atom is 0.58(16)% in an admixture of 1% B2H6 in He at 6.7 kPa and is interpreted in terms of pressure dependent quenching.

Original languageEnglish
Pages (from-to)4363-4366
Number of pages4
JournalPhysical Review Letters
Volume78
Issue number23
Publication statusPublished - 1997

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admixtures
metastable state
cascades
boron
diborane
photons
decay
gas pressure
quenching
detectors
atoms
electrons
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kirch, K., Abbott, D., Bach, B., Dececco, P., Hauser, P., Horváth, D., ... Viel, D. (1997). Metastability of the muonic boron 2S state. Physical Review Letters, 78(23), 4363-4366.

Metastability of the muonic boron 2S state. / Kirch, K.; Abbott, D.; Bach, B.; Dececco, P.; Hauser, P.; Horváth, D.; Kottmann, F.; Missimer, J.; Siegel, R. T.; Simons, L. M.; Viel, D.

In: Physical Review Letters, Vol. 78, No. 23, 1997, p. 4363-4366.

Research output: Contribution to journalArticle

Kirch, K, Abbott, D, Bach, B, Dececco, P, Hauser, P, Horváth, D, Kottmann, F, Missimer, J, Siegel, RT, Simons, LM & Viel, D 1997, 'Metastability of the muonic boron 2S state', Physical Review Letters, vol. 78, no. 23, pp. 4363-4366.
Kirch K, Abbott D, Bach B, Dececco P, Hauser P, Horváth D et al. Metastability of the muonic boron 2S state. Physical Review Letters. 1997;78(23):4363-4366.
Kirch, K. ; Abbott, D. ; Bach, B. ; Dececco, P. ; Hauser, P. ; Horváth, D. ; Kottmann, F. ; Missimer, J. ; Siegel, R. T. ; Simons, L. M. ; Viel, D. / Metastability of the muonic boron 2S state. In: Physical Review Letters. 1997 ; Vol. 78, No. 23. pp. 4363-4366.
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