A comparison of two independent measurements of the lifetime of a state in<sup>59</sup>Cu

Cooke, B. E.; Leslie, J. R.; McLatchie, W.; Robertson, B.C.

doi:10.1088/0305-4616/3/3/014

Cited by 9 publications

(12 citation statements)

References 15 publications

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“…This distribution peaks at k + /M ≡ y ≃ 0.8 for 16 O, (with smaller values for heavier nuclei) but is not the distribution obtained from the covariant formalism of Section II. The connection between this f (y) and the covariant f N (y) was made in Ref.…”

Section: Derivation Of the Plus Momentum Distributionmentioning

confidence: 54%

“…(4.4) with the simple non-relativistic harmonic oscillator shell model as an additional check on our method. These (equal time) wavefunctions give us an explicit, although approximate in the sense of Section III, closed form of the plus momentum distribution for 16 O:…”

Section: Nuclear Structure Functionsmentioning

confidence: 99%

“…The results of our calculations are plotted for 16 O, 40 Ca, 208 Pb and in the nuclear matter limit in Fig. 5 showing data for Carbon, Calcium and Gold from SLAC-E139 [30] and an extrapolation [32] for the nuclear matter calculation.…”

Section: Nuclear Structure Functionsmentioning

confidence: 99%

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Return of the EMC effect: Finite nuclei

Smith

Miller

2002

Phys. Rev. C

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A light front formalism for deep inelastic lepton scattering from finite nuclei is developed. In particular, the nucleon plus momentum distribution and a finite system analog of the Hugenholtzvan Hove theorem are presented. Using a relativistic mean field model, numerical results for the plus momentum distribution and ratio of bound to free nucleon structure functions for Oxygen, Calcium and Lead are given. We show that we can incorporate light front physics with excellent accuracy while using easily computed equal time wavefunctions. Assuming nucleon structure is not modified in-medium we find that the calculations are not consistent with the binding effect apparent in the data not only in the magnitude of the effect, but in the dependence on the number of nucleons.

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Section: Derivation Of the Plus Momentum Distributionmentioning

confidence: 54%

Section: Nuclear Structure Functionsmentioning

confidence: 99%

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Return of the EMC effect: Finite nuclei

Smith

Miller

2002

Phys. Rev. C

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“…Although theoretical considerations predict also a rather complex shape for the axial form factor, see Ref. [58] and references therein, we will use the simple parameterization…”

Section: Gpds Of Spin-one Targetmentioning

confidence: 99%

Deeply virtual Compton scattering off nuclei

2003

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We consider the hard leptoproduction of a photon off nuclei up to spin-1. As a new result we present here the general azimuthal angular dependence of the differential cross section for a spin-1 target. Its twist-two Fourier coefficients of the interference and squared deeply virtual Compton scattering amplitude are evaluated in leading order approximation of perturbation theory in terms of generalized parton distributions, while the pure Bethe-Heitler cross section is exactly calculated in terms of electromagnetic form factors. Relying on a simple model for the nucleon generalized parton distribution H, which describes the existing DVCS data for a proton target, we estimate the size of unpolarized cross sections, beam and longitudinal target spin as well as unpolarized charge asymmetries for present fixed target experiments with nuclei. These estimates are confronted with preliminary HERMES data for deuterium and neon.

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“…As discussed in Refs. [10,11,15,16], we have some freedom in deciding which TPE diagrams to include in our potential. In particular, we may neglect just the crossed diagrams, or both the crossed and contact diagrams.…”

Section: Modelmentioning

confidence: 99%

Pion-only, chiral light-front model of the deuteron

Cooke¹,

Miller²

2002

Phys. Rev. C

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We investigate the symptoms of broken rotational invariance, caused by the use of light front dynamics, for deuterons obtained using one- and two-pion-exchange potentials. A large mass splitting between states with m=0 and m=1 is found for the deuteron obtained from the one-pion-exchange (OPE) potential. The size of the splitting is smaller when the chiral two-pion-exchange (TPE) potential is used. When the TPE potential constructed without chiral symmetry is used, the deuteron becomes unbound. These results arise from significant relativistic effects which are much larger than those of the Wick-Cutkosky model because of the presence of the tensor force.Comment: 5 pages, 1 figure, REVTeX4 (style files included

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A comparison of two independent measurements of the lifetime of a state in⁵⁹Cu

Cited by 9 publications

References 15 publications

Return of the EMC effect: Finite nuclei

Return of the EMC effect: Finite nuclei

Deeply virtual Compton scattering off nuclei

Pion-only, chiral light-front model of the deuteron

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A comparison of two independent measurements of the lifetime of a state in59Cu

Cited by 9 publications

References 15 publications

Return of the EMC effect: Finite nuclei

Return of the EMC effect: Finite nuclei

Deeply virtual Compton scattering off nuclei

Pion-only, chiral light-front model of the deuteron

Contact Info

Product

Resources

About

A comparison of two independent measurements of the lifetime of a state in⁵⁹Cu