TY - JOUR
T1 - Proton spin content from skyrmions
AU - Kälbermann, G.
AU - Eisenberg, J. M.
AU - Schäfer, Andreas
PY - 1994/11/17
Y1 - 1994/11/17
N2 - It is well known that in lowest order the skyrmion model of the nucleon gives vanishing spin content. With new data indicating a proton spin content Δ∑ = 0.22 ± 0.14, it is an increasing challenge to find ways in which the skyrmion can move away from the null result. We show here that a particular term in the skyrmion lagrangian in SU (3) involving six derivatives of the field can, with plausible parameters, yield a spin content consistent with present experiment.
AB - It is well known that in lowest order the skyrmion model of the nucleon gives vanishing spin content. With new data indicating a proton spin content Δ∑ = 0.22 ± 0.14, it is an increasing challenge to find ways in which the skyrmion can move away from the null result. We show here that a particular term in the skyrmion lagrangian in SU (3) involving six derivatives of the field can, with plausible parameters, yield a spin content consistent with present experiment.
UR - http://www.scopus.com/inward/record.url?scp=0642327098&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(94)90633-5
DO - 10.1016/0370-2693(94)90633-5
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:0642327098
SN - 0370-2693
VL - 339
SP - 211
EP - 214
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3
ER -