Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD

Details Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD

2002-01-18

arxiv.org/abs/hep-ph/0201179v3

Phys.Rev. D66 (2002) 034021

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages

Scientific paper

10.1103/PhysRevD.66.034021

We compute the chiral corrections to octet baryon axial currents through ${\cal O}(p^3)$ in heavy baryon chiral perturbation theory, including both octet and decuplet baryon intermediate states. We include the latter in a consistent way by using the small scale expansion. We find that, in contrast to the situation at ${\cal O}(p^2)$, there exist no cancellations between octet and decuplet contributions at ${\cal O}(p^3)$. Consequently, the ${\cal O}(p^3)$ corrections spoil the expected scaling behavior of the chiral expansion. We discuss this result in terms of the $1/N_c$ expansion. We also consider the implications for determination of the strange quark contribution to the nucleon spin from polarized deep inelastic scattering data.

Affiliated with

Also associated with

No associations

Rating

Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD 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 Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recoil Order Chiral Corrections to Baryon Octet Axial Currents and Large $N_c$ QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-489836