The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$

Details The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$ The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$

2009-03-10

arxiv.org/abs/0903.1723v2

Phys.Rev.D79:093007,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 28 figures, version accepted by PRD

Scientific paper

10.1103/PhysRevD.79.093007

We compare a recent lattice determination of the nucleon distribution amplitudes with other approaches and models. We study the nucleon distribution amplitudes up to twist 6 in next-to leading conformal spin and we also investigate conformal d-wave contributions to the leading twist distribution amplitude. With the help of light-cone sum rules one can relate the distribution amplitudes to the form factors of the nucleon or the $ N \to \Delta$ transition at intermediate values of the momentum transfer. We compare our results with experimental data in the range 1 GeV$^2 \leq Q^2 \leq 10$ GeV$^2$. Keeping in mind that we are working only in LO QCD and NLO-QCD corrections might be sizeable we already obtain a surprisingly good agreement for the nucleon form factors $G_M^n$, $G_M^p$, $G_A^p$ and $G_T^p$ and for the $N \to \Delta$ transition form factor ratios $R_{EM}$ and $R_{SM}$.

Affiliated with

Also associated with

No associations

Rating

The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N \to Δ$ transition at intermediate values of $Q^2$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-186917