On continuum- and bound-state ℓ<sup>−</sup>-decay rates of pionic and kaonic hydrogen in the ground state

Faber, M.; Ivanov, A. N.; Ivanova, V. A.; Márton, J.; Pitschmann, Mario; Troitskaya, N. I.; Wellenzohn, M.

doi:10.1088/0954-3899/36/7/075009

Cited by 2 publications

(3 citation statements)

References 27 publications

(77 reference statements)

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“…For the experimental analysis of the contributions of the scalar and tensor weak interactions we give angular distributions of the probabilities of the bound-state β − -decay rates of the polarised neutron. The calculation of the bound-state β −decay rates we use the technique applied to the analysis of the weak decays of the H-like, He-like and bare heavy ions and mesic hydrogen in [15]- [17]. In the Conclusion we discuss the obtained results.…”

Section: Introductionmentioning

confidence: 97%

Continuum-state and bound-stateβ−-decay rates of the neutron

et al. 2009

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We analyse the continuum-state and bound-state β − -decay rates of the neutron. For the calculation of theoretical values of the decay rates we use the new value for the axial coupling constant gA = 1.2750(9), obtained recently by H. Abele (Progr. Part. Nucl. Phys., 60, 1 (2008)) from the fit of the experimental data on the neutron spin-electron correlation coefficient of the electron energy spectrum of the continuum-state β − -decay of the neutron. We take into account the contribution of radiative corrections and the scalar and tensor weak couplings. We define correlation coefficients of the electron energy spectrum in terms of axial, scalar and tensor coupling constants. Using recent precise experimental data for the lifetime of the neutron and correlation coefficients we estimate the scalar and tensor weak coupling constants. The bound-state β − -decay rates of the neutron we calculate as functions of axial, scalar and tensor weak coupling constants. We show that dominantly the neutron decays into hydrogen in the hyperfine states with total angular momentum F = 0. The calculated angular distributions of the probabilities of the bound-state β − -decays of the polarised neutron can be used for the experimental measurements of the bound-state β − -decays into the hyperfine states with a total angular momentum F = 1. PACS: 12.15.Ff, 13.15.+g, 23.40.Bw, 26.65.+t

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Section: Introductionmentioning

confidence: 97%

Continuum-state and bound-stateβ−-decay rates of the neutron

et al. 2009

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“…We are grateful to Prof. T. Ericson for calling our attention to the problem of the bound-state β − -decay of the free neutron and the proposal to analyse this problem in our approach to the βdecays of highly charged heavy ions [8,9] and mesic hydrogen [10].…”

Section: Concluding Discussionmentioning

confidence: 99%

“…Recently [6,7] Schott et al have reported the experimental data on the bound-state β − -decay of the free neutron n → H + νe . In this letter we apply the technique, which we used for the analysis of the weak decays of the H-like, bare heavy ions and mesic hydrogen [8]- [10], to the calculation of the bound-state β − -decay rate of the free neutron.…”

Section: Introductionmentioning

confidence: 99%

On Bound-State beta^- Decay Rate of the Free Neutron

Faber,

Ivanov,

Ivanova

et al. 2009

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On continuum- and bound-state ℓ⁻-decay rates of pionic and kaonic hydrogen in the ground state

Abstract: We calculate the continuum-and bound-state ℓ − -decay rates of pionic and kaonic hydrogen in the ground state, where ℓ − is either the electron e − or the muon µ − .

Cited by 2 publications

References 27 publications

Continuum-state and bound-stateβ−-decay rates of the neutron

Continuum-state and bound-stateβ−-decay rates of the neutron

On Bound-State beta^- Decay Rate of the Free Neutron

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On continuum- and bound-state ℓ−-decay rates of pionic and kaonic hydrogen in the ground state

Abstract: We calculate the continuum-and bound-state ℓ − -decay rates of pionic and kaonic hydrogen in the ground state, where ℓ − is either the electron e − or the muon µ − .

Cited by 2 publications

References 27 publications

Continuum-state and bound-stateβ−-decay rates of the neutron

Continuum-state and bound-stateβ−-decay rates of the neutron

On Bound-State beta^- Decay Rate of the Free Neutron

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On continuum- and bound-state ℓ⁻-decay rates of pionic and kaonic hydrogen in the ground state