$1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon

Details $1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon $1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon

1993-12-14

arxiv.org/abs/hep-ph/9312279v2

Phys.Lett.B325:467-472,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

(Revtex), 10 pages (3 figures available on request), report RUB-TPII-53/93

Scientific paper

10.1016/0370-2693(94)90041-8

The $1/N_c$ rotational corrections to the axial vector constant and the isovector magnetic moment of the nucleon are studied in the Nambu -- Jona-Lasinio model. We follow a semiclassical quantization procedure in terms of path integrals in which we can include perturbatively corrections in powers of angular velocity $\Omega \sim \frac 1{N_c}$. We find non-zero $1/N_c$ order corrections from both the valence and the Dirac sea quarks. These corrections are large enough to resolve the long-standing problem of a strong underestimation of both $g_A$ and $\mu^{IV}$ in the leading order. The axial constant $g_A$ is well reproduced, whereas the isovector magnetic moment $\mu^{IV}$ is still underestimated by 25 \%.

Affiliated with

Also associated with

No associations

Rating

$1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon 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 $1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $1/N_c$ Rotational Corrections to $g_A$ and Isovector Magnetic Moment of the Nucleon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-289356