Polarized structure function $g_2$ in the CM bag model

Details Polarized structure function $g_2$ in the CM bag model Polarized structure function $g_2$ in the CM bag model

1996-04-08

arxiv.org/abs/hep-ph/9604264v1

Phys.Rev. D54 (1996) 1955-1966

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, revtex, uses epsfig.sty, 12 ps figures included

Scientific paper

10.1103/PhysRevD.54.1955

The spin-dependent structure functions $g_1(x)$, $g_2(x)$, ${g}_2^{WW}(x)$ and ${\bar g}_2(x)$ and their moments are studied in the CM bag model. The results show that (i) $\int_0^1g_2(x)dx=0$, i.e. the Burkhardt-Cottingham sum rule holds, hence $g_2(x)$ must have at least one non-trivial zero besides $x=0$ and $x=1$. (ii) $\int_0^1x^2g_2(x)dx$ is negative for the proton, neutron and deuteron. (iii) $\int_0^1x^2g_2(x)dx$ is about one order of magnitude smaller than $\int_0^1x^2g_1(x)dx$, hence the twist-3 matrix element is approximately equal to the twist-2 matrix element. The results are compared with most recent data and predictions from the MIT bag model, lattice QCD and QCD sum rules.

Affiliated with

Also associated with

No associations

Rating

Polarized structure function $g_2$ in the CM bag model 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 Polarized structure function $g_2$ in the CM bag model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarized structure function $g_2$ in the CM bag model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-55651