منابع مشابه
Neutron charge radius and the neutron electric form factor
For nearly forty years, the Galster parametrization has been employed to fit existing data for the neutron electric form factor, GnE, vs the square of the four-momentum transfer, Q 2. Typically this parametrization is constrained to be consistent with experimental data for the neutron charge radius. However, we find that the Galster form does not have sufficient freedom to accommodate reasonabl...
متن کاملNeutron Charge Form Factor and Quadrupole Deformation of the Nucleon∗
A quark model relation between the neutron charge form factor and the N → ∆ charge quadrupole form factor is used to predict the C2/M1 ratio in the N → ∆ transition from the elastic neutron form factor data. Excellent agreement with the electro-pionproduction data is found, indicating the validity of the suggested relation. The implication of the negative C2/M1 ratio for the intrinsic deformati...
متن کامل- th / 9 80 40 09 v 1 6 A pr 1 99 8 The neutron charge form factor in helium - 3
In order to measure the charge form factor of the neutron, G n E (Q 2), one needs to use a neutron bound in a nuclear target. We calculate the change in the form factor for a neutron bound in 3 He, with respect to the free case, using several versions of the quark meson coupling model. It is found that the form factor may be suppressed by as much as 12% at Q 2 = 0.5 GeV 2 with respect to that o...
متن کاملNeutron Electric Form Factor From
In a double polarised electron scattering experiment data have been taken from which G n E can be extracted for Q 2 = 0.2 GeV 2 /c 2. We have measured asymmetries corresponding to the spin-spin correlation functions A ′ x and A ′ z and to the target analyzing power A 0 y. In order to investigate the influence of the reaction mechanisms and the different components of the 3 He wave function, als...
متن کاملRelativistic Charge Form Factor of the Deuteron
Relativistic integral representation in terms of experimental neutron– proton scattering phase shifts alone is used to compute the charge form factor of the deuteron GCd(Q ). The results of numerical calculations of |GCd(Q)| are presented in the interval of the four–momentum transfers squared 0 ≤ Q ≤ 35 fm−2. Zero and the prominent secondary maximum in |GCd(Q)| are the direct consequences of th...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)01196-4