Electromagnetic proton form factors in large $N_{c}$ QCD

Details Electromagnetic proton form factors in large $N_{c}$ QCD Electromagnetic proton form factors in large $N_{c}$ QCD

2004-09-09

arxiv.org/abs/hep-ph/0409111v1

JHEP 0410:003,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages

Scientific paper

10.1088/1126-6708/2004/10/003

The electromagnetic form factors of the proton are obtained using a particular realization of QCD in the large $N_c$ limit (${QCD}_{\infty}$), which sums up the infinite number of zero-width resonances to yield an Euler's Beta function (Dual-${QCD}_{\infty}$). The form factors $F_1(q^2)$ and $F_2(q^2)$, as well as $G_M(q^2)$ agree very well with reanalyzed space-like data in the whole range of momentum transfer. In addition, the predicted ratio $\mu_p G_E/G_M$ is in good agreement with recent polarization transfer measurements at Jefferson Lab.

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