Non-perturbative structure of the polarized nucleon sea

Details Non-perturbative structure of the polarized nucleon sea Non-perturbative structure of the polarized nucleon sea

2003-06-04

arxiv.org/abs/hep-ph/0306033v2

Phys.Rev.D68:074002,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTex, 17 pages plus 8 PS figures

Scientific paper

10.1103/PhysRevD.68.074002

We investigate the flavour and quark-antiquark structure of the polarized nucleon by calculating the parton distribution functions of the nucleon sea using the meson cloud model. We find that the SU(2) flavor symmetry in the light antiquark sea and quark-antiquark symmetry in the strange quark sea are broken, {\it i.e.} $\Delta\ubar < \Delta \dbar$ and $\Delta s < \Delta \sbar$. The polarization of the strange sea is found to be positive, which is in contradiction to previous analyses. We predict a much larger quark-antiquark asymmetry in the polarized strange quark sea than that in the unpolarized strange quark sea. Our results for both polarized light quark sea and polarized strange quark sea are consistent with the recent HERMES data.

Affiliated with

Also associated with

No associations

Rating

Non-perturbative structure of the polarized nucleon sea 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 Non-perturbative structure of the polarized nucleon sea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-perturbative structure of the polarized nucleon sea will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-129643