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Abstract: The electromagnetic form factors of nucleons are calculated using an AdS-QCDmodel by considering a Dirac field coupled to a vector field in the5-dimensional AdS space. We also calculate a gravitational or energy-momentumform factor by perturbing the metric from the static AdS solution. We considerboth the hard-wall model where the AdS geometry is cutoff at z 0 and thesoft-wall model where the geometry is smoothly cut off by a background dilatonfield.



Autor: Zainul Abidin, Carl E. Carlson William and Mary

Fuente: https://arxiv.org/



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