Parity-violating asymmetry in elastic<i>e</i>→<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">−</mml:mi></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>He scattering: Effects of isospin admixtures

Ramavataram, S.; Hadjimichael, E.; Donnelly, T. W.

doi:10.1103/physrevc.50.1175

Cited by 24 publications

(33 citation statements)

References 20 publications

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“…Note that the value P T =1 ≈ 1 × 10 −3 is also in reasonable agreement with the estimate of Ref. [63].…”

Section: Origin Of the T > 0 Componentssupporting

confidence: 91%

“…As can be seen from that table, with the inclusion of the Coulomb potential H C , the percentage of the T = 1 state is in rough agreement (within a factor 2) with that estimated in Ref. [63]. The percentage of the T = 2 state is very tiny in this case.…”

Section: Origin Of the T > 0 Componentssupporting

confidence: 83%

“…This question was analyzed in Ref. [63] and found that the contribution from the T = 1 isospin mixing configurations to A LR was negligible. Considering the effect of the Coulomb potential alone, the percentage of the T = 1 component in that work was estimated to be P T =1 = 7 × 10 −4 .…”

Section: Origin Of the T > 0 Componentsmentioning

confidence: 99%

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Calculation of theα-particle ground state within the hyperspherical harmonic basis

2005

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The problem of calculating the four-nucleon bound state properties for the case of realistic twoand three-body nuclear potentials is studied using the hyperspherical harmonic (HH) approach. A careful analysis of the convergence of different classes of HH functions has been performed. A restricted basis is chosen to allow for accurate estimates of the binding energy and other properties of the 4 He ground state. Results for various modern two-nucleon and two-plus three-nucleon interactions are presented. The 4 He asymptotic normalization constants for separation in 2+2 and 1+3 clusters are also computed.

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“…Note that the value P T =1 ≈ 1 × 10 −3 is also in reasonable agreement with the estimate of Ref. [63].…”

Section: Origin Of the T > 0 Componentssupporting

confidence: 91%

Section: Origin Of the T > 0 Componentssupporting

confidence: 83%

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Calculation of theα-particle ground state within the hyperspherical harmonic basis

2005

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“…The mixing parameter is proportional to the amplitude of the Coulomb perturbation and inversely proportional to the energy difference between the mixed nonperturbed states; the corresponding PV asymmetry is also dependent on the form factors of the elastic transition on the new ground state, which involves inelastic transitions in the basis previous to the perturbation. The isospin-mixing deviation for 4 He obtained in this manner in [25] is considered there as a conservative estimation, and the only source of isospin mixing taken into account in those works, as well as in this one, is the Coulomb interaction between protons.…”

Section: E and G (S)mentioning

confidence: 99%

Nuclear structure uncertainties in parity-violating electron scattering from12C

Moreno

Donnelly

2014

Phys. Rev. C

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High precision measurements of the parity-violating asymmetry in polarized electron scattering from nuclei can be used to extract information on nuclear and nucleon structure or to determine standard model couplings and higher-order radiative corrections. To this end, low uncertainties are also required in the effects that inevitably arise from modeling the underlying nuclear structure. An experimental precision of a few tenths of a percent may be attainable for the asymmetry if the appropriate kinematic range is chosen, as will be discussed here for the case of 12 C. And given this, the dual goal of ascertaining both the sizes of various nuclear structure related effects and of providing estimates of their uncertainties for this particular target will be discussed.

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“…This situation follows from the spin-isospin quantum numbers for this particular type of nucleus. Moreover, one expects nuclear structure effects, such as the isospin-mixing in the wave function, to be negligible in the cases of the light nuclei [10]. With these considerations in mind, direct measurements of G S E are planned at TJNAF with 4 He nucleus as the target [5,6].…”

Section: Introductionmentioning

confidence: 99%

Strange mesonic transition form factor in the chiral constituent quark model

Itô¹,

Ramsey-Musolf²

1998

Phys. Rev. C

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The form factor g (S) ρπ (Q 2 ) of the strange vector current transition matrix element ρ|sγ µ s|π is calculated within the chiral quark model. A strange vector current of the constituent U -and D-quarks is induced by kaon radiative corrections and this mechanism yields the nonvanishing values of g (S)ρπ (0). The numerical result at the photon point is consistent with the one given by the φ-meson dominance model, but the fall-off in the Q 2 -dependence is faster than the monopole form factor. Mesonic radiative corrections are also examined for the electromagnetic ρ-to-π and K * -to-K transition amplitudes.

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Parity-violating asymmetry in elastice→−4He scattering: Effects of isospin admixtures

Cited by 24 publications

References 20 publications

Calculation of theα-particle ground state within the hyperspherical harmonic basis

Calculation of theα-particle ground state within the hyperspherical harmonic basis

Nuclear structure uncertainties in parity-violating electron scattering from12C

Strange mesonic transition form factor in the chiral constituent quark model

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