Muon capture in deuterium

Ricci, P.; Truhlík, E.; Mosconi, B.; Smejkal, J.

doi:10.1016/j.nuclphysa.2010.02.009

Cited by 12 publications

(39 citation statements)

References 55 publications

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“…The nuclear weak current retained contributions similar to those of Ref. [19]. The value obtained for the total capture rate Γ 0 was 1502(32) s −1 , the uncertainty due to poor knowledge of some of the coupling constants and cutoff parameters entering the axial current.…”

Section: Introductionsupporting

confidence: 69%

“…On the other hand, the results of Refs. [15,19] are significantly larger than those listed here, presumably because these authors have not constrained their weak current to reproduce GT EXP and the isovector magnetic moment of the trinucleons. We observe that our approach also provides a value for muon capture on 3 He in excellent agreement with the experimental datum.…”

Section: A Muon Capture On Deuteroncontrasting

confidence: 58%

“…[19], and has led to values in the range of 416-430 s −1 (see Table 1 of Ref. [19]), depending on the potential used, the Nijmegen I or Nijmegen 93 [24].…”

Section: Introductionmentioning

confidence: 99%

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Muon capture on deuteron andHe3

et al. 2011

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The muon capture reactions 2 H(µ − , νµ)nn and 3 He(µ − , νµ) 3 H are studied with conventional or chiral realistic potentials and consistent weak currents. The initial and final A = 2 and 3 nuclear wave functions are obtained from the Argonne v18 or chiral N3LO two-nucleon potential, in combination with, respectively, the Urbana IX or chiral N2LO three-nucleon potential in the case of A = 3. The weak current consists of polar-and axial-vector components. The former are related to the isovector piece of the electromagnetic current via the conserved-vector-current hypothesis. These and the axial currents are derived either in a meson-exchange or in a chiral effective field theory (χEFT) framework. There is one parameter (either the N -to-∆ axial coupling constant in the meson-exchange model, or the strength of a contact term in the χEFT model) which is fixed by reproducing the Gamow-Teller matrix element in tritium β-decay. The model dependence relative to the adopted interactions and currents (and cutoff sensitivity in the χEFT currents) is weak, resulting in total rates of 392.0 ± 2.3 s −1 for A = 2, and 1484 ± 13 s −1 for A = 3, where the spread accounts for this model dependence.

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Section: Introductionsupporting

confidence: 69%

Section: A Muon Capture On Deuteroncontrasting

confidence: 58%

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Muon capture on deuteron andHe3

et al. 2011

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“…In fact, in Ref. 44, two-body MEC's are derived from the hard pion chiral Lagrangians of the N ∆πρωa 1 system, and are not constrained to reproduce any experimental observable, like GT EXP . This is typically responsible for large model-dependence in the results, as some of the coupling constants and cutoff parameters entering the axial current are poorly known.…”

Section: Resultsmentioning

confidence: 99%

MUON CAPTURE ON DEUTERON AND ³He: A PERSONAL REVIEW

Marcucci

2012

Int. J. Mod. Phys. A

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“…[9,10], an other calculation of Γ D was performed in Ref. [13] within the PMA, although the meson-exchange currents were of different origin. The results of Ref.…”

Section: Pos(cd12)099mentioning

confidence: 99%