Elastic form factors and charge radii of π andKmesons

AbstractBy considering energy-dependent form factors extracted from generalized Chou–Yang model, root mean square (rms) charge radii of deuteron and helium nuclei (alpha) are predicted at different values of center of mass energy which are in good agreement with theoretical predictions and experimental results. The rms radius is inversely proportional to mass of nuclei. Besides, the relationship between radii and energy are also derived.

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Elastic Form Factors of the Proton, Neutron and Deuteron

Nuclear Physics A ◽

10.1016/j.nuclphysa.2008.02.276 ◽

2008 ◽

Vol 805 (1-4) ◽

pp. 361c-368c ◽

Cited By ~ 10

Author(s):

Michael Kohl

Keyword(s):

Form Factors ◽

Elastic Form

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The contribution of valence quarks in the nucleon GE and GM

International Journal of Modern Physics A ◽

10.1142/s0217751x19501483 ◽

2019 ◽

Vol 34 (27) ◽

pp. 1950148

Author(s):

Negin Sattary Nikkhoo ◽

Mohammad Reza Shojaei

Keyword(s):

Experimental Data ◽

Angular Momentum ◽

Form Factor ◽

Total Angular Momentum ◽

Form Factors ◽

Distribution Functions ◽

The Other ◽

Parton Distribution Functions ◽

Nucleon Electromagnetic Form Factor ◽

Elastic Form

The goal of this paper is to extract the flavor decomposition of nucleon electromagnetic form factor using the modified Gaussian and extended Regge ansatzes in the GPDs. We consider the CJ15 and JR09 parton distribution functions for both of these ansatzes in calculating the nucleon elastic form factors. Our results are compared with experimental data in the range [Formula: see text] 4-momentum transfers. Also, we calculate the total angular momentum carried by quarks, the gravitational form factors, and the transverse gravitational density for quarks of the nucleon. In the end, our results are compared with the other studies.

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Nucleon Axial and Electromagnetic Form Factors

EPJ Web of Conferences ◽

10.1051/epjconf/201817506033 ◽

2018 ◽

Vol 175 ◽

pp. 06033 ◽

Cited By ~ 9

Author(s):

Yong-Chull Jang ◽

Tanmoy Bhattacharya ◽

Rajan Gupta ◽

Huey-Wen Lin ◽

Boram Yoon

Keyword(s):

Excited States ◽

Finite Volume ◽

Magnetic Moment ◽

Lattice Spacing ◽

Form Factors ◽

Electromagnetic Form Factors ◽

Charge Radii ◽

Model Independent ◽

Magnetic Form Factors

We present results for the isovector axial, induced pseudoscalar, electric, and magnetic form factors of the nucleon. The calculations were done using 2 + 1 + 1-flavor HISQ ensembles generated by the MILC collaboration with lattice spacings a ≈ 0.12, 0.09, 0.06 fm and pion masses Mπ ≈ 310, 220, 130 MeV. Excited-states contamination is controlled by using four-state fits to two-point correlators and by comparing two-versus three-states in three-point correlators. The Q2 behavior is analyzed using the model independent z-expansion and the dipole ansatz. Final results for the charge radii and magnetic moment are obtained using a simultaneous fit in Mπ, lattice spacing a and finite volume.

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