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Knowles, P.; Boreiko, V. M.; Bystritsky, V. M.; Filipowicz, M.; Huot, O.; Mulhauser, F.; Павлов, В. Н.; Pen’kov, F. M.; Petitjean, C.; Popov, N.P.; Sandukovsky, V. G.; Schaller, L. A.; Schneuwly, H.; Stolupin, V. A.; Wozniak, J.

doi:10.1023/a:1020868732409

Cited by 5 publications

(10 citation statements)

References 7 publications

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“…The so obtained value still needs to be corrected for the difference in positions between the germanium and the Si(dE − E) detectors with respect to the muon stop distribution along the incident muon beam. The final value for the total muon decay electron detection efficiency of the four electron counters found from the analysis of Run II is ε e = 16.4 ± 0.22% [27,30].…”

Section: The Analysis Of Experimental Datamentioning

confidence: 94%

“…The apparatus was originally designed and used to measure the nuclear fusion rate in the molecular system dµ 3 He [25,27,29,30]. Figure 1 schematically displays the apparatus as seen by an incoming muon.…”

Section: Experiments a Experimental Set-upmentioning

confidence: 99%

“…The density φ is given relative to the standard liquid hydrogen atomic density (LHD), N 0 = 4.25 × 10 22 cm −3 . As seen from the last column of Table I, Run II was by far the longest run because its original purpose was to measure the fusion rate in the dµ 3 He molecule and the muon transfer rate from dµ atoms to 3 He nuclei [30].…”

Section: Experiments a Experimental Set-upmentioning

confidence: 99%

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Muon capture by3Henuclei followed by proton and deuteron production

et al. 2004

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Section: The Analysis Of Experimental Datamentioning

confidence: 94%

Section: Experiments a Experimental Set-upmentioning

confidence: 99%

Section: Experiments a Experimental Set-upmentioning

confidence: 99%

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Muon capture by3Henuclei followed by proton and deuteron production

et al. 2004

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“…The large difference seen in our case between D 2 + 3 He and D 2 + 4 He is therefore partially due to the differing helium concentrations (see Table I). The second observation is that the q He 1s is significantly larger for deuterium, a result of consequence in the case of muon catalyzed fusion in deuterium-helium mixtures [18].…”

Section: Radiative Branching Ratio κmentioning

confidence: 97%

Muon transfer from deuterium to helium

Augsburger¹,

Chatellard²,

Huot³

et al. 2003

Phys. Rev. A

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We report on an experiment at the Paul Scherrer Institute, Villigen, Switzerland measuring x rays from muon transfer from deuterium to helium. Both the ground state transfer via the exotic dmu3,4He* molecules and the excited state transfer from mud* were measured. The use of CCD detectors allowed x rays from 1.5 keV to 11 keV to be detected with sufficient energy resolution to separate the transitions to different final states in both deuterium and helium. The x-ray peaks of the dmu3He* and dmu4He* molecules were measured with good statistics. For the D2+3He mixture, the peak has its maximum at E_dmu3He = 6768 +- 12 eV with FWHM Gamma_dmu3He = 863 +- 10 eV. Furthermore the radiative branching ratio was found to be kappa_dmu3He = 0.301 +- 0.061. For the D_2+4He mixture, the maximum of the peak lies at E_dmu4He = 6831 +- 8 eV and the FWHM is Gamma_dmu4He = 856 +- 10 eV. The radiative branching ratio is kappa_dmu4He = 0.636 +- 0.097. The excited state transfer is limited by the probability to reach the deuterium ground state, q_1s. This coefficient was determined for both mixtures: q^3He_1s = 68.9 +- 2.7% and q^4He_1s = 90.1 +- 1.5.Comment: 9 pages, 11 figure

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“…It is described in details in Refs. [36,37,38]. A schematic muon eyes view of the setup is given in Fig.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Experimental study ofμ-atomic andμ-molecular processes in pure helium and deuterium-helium mixtures

et al. 2005

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We present experimental results of -atomic and -molecular processes induced by negative muons in pure helium and helium-deuterium mixtures. The experiment was performed at the Paul Scherrer Institute ͑Swit-zerland͒. We measured relative intensities of muonic x-ray K series transitions in ͑ 3,4 He͒ * atoms in pure helium as well as in helium-deuterium mixtures. The d 3 He radiative decay probabilities for two different helium densities in D 2 + 3 He mixture were also determined. Finally, the q 1sHe probability for a d atom formedin an excited state to reach the ground state was measured and compared with theoretical calculations using a simple cascade model. ͑see Refs. ͓43,44͔͒. The effective d 3 He decay rates for both rotational states, J = 0 and J = 1 are defined as dec J = ␥ J + e J + p J . ͑40͒ FIG. 7. Energy spectra of the delayed events in runs III ͑left͒ and IV ͑right͒. FIG. 8. Time distributions in runs III ͑left͒ and IV ͑right͒ within the energy range 5.74− 7.50 keV. EXPERIMENTAL STUDY OF -ATOMIC AND -MOLECULAR PROCESSES… PHYSICAL REVIEW A 71, 032723 ͑2005͒ 032723-9

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Cited by 5 publications

References 7 publications

Muon capture by3Henuclei followed by proton and deuteron production

Muon capture by3Henuclei followed by proton and deuteron production

Muon transfer from deuterium to helium

Experimental study ofμ-atomic andμ-molecular processes in pure helium and deuterium-helium mixtures

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