Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon

Details Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon

1997-12-22

arxiv.org/abs/hep-ph/9712483v1

Phys.Rev.D58:074504,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 5 figures, LaTex, UK/97-23, ADP-97-55/T281

Scientific paper

10.1103/PhysRevD.58.074504

We report on a lattice QCD calculation of the strangeness magnetic moment of the nucleon. Our result is $G_M^s(0) = - 0.36 \pm 0.20 $. The sea contributions from the u and d quarks are about 80% larger. However, they cancel to a large extent due to their electric charges, resulting in a smaller net sea contribution of $ - 0.097 \pm 0.037 \mu_N$ to the nucleon magnetic moment. As far as the neutron to proton magnetic moment ratio is concerned, this sea contribution tends to cancel out the cloud-quark effect from the Z-graphs and result in a ratio of $ -0.68 \pm 0.04$ which is close to the SU(6) relation and the experiment. The strangeness Sachs electric mean-square radius $< r_s^2>_E$ is found to be small and negative and the total sea contributes substantially to the neutron electric form factor.

Affiliated with

Also associated with

No associations

Rating

Lattice Calculation of the Strangeness 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 Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-516938