TY - JOUR
T1 - Nucleon spin with and without hyperon data
T2 - A new tool for analysis
AU - Karliner, Marek
AU - Lipkin, Harry J.
N1 - Funding Information:
One of us (H.J.L.) thanks Gordon P. Ramsey for interesting discussions. This research was supported in part by a grant from the United States-Israel Binational Science Foundation (BSF), Jerusalem, Israel, and by the Basic Research Foundation administered by the Israel Academy of Sciences and Humanities.
PY - 1999
Y1 - 1999
N2 - We present a simple explanation of the underlying physics in the use of hyperon decay data to obtain information about proton spin structure. We also present an alternative input using nucleon magnetic moment data and show that the results from the two approaches are nearly identical. The role of symmetry breaking is clarified while pointing out that simple models explaining the violation of the Gottfried sum rule via pion emission tend to lose the good SU(3) predictions from Cabibbo theory for hyperon decays.
AB - We present a simple explanation of the underlying physics in the use of hyperon decay data to obtain information about proton spin structure. We also present an alternative input using nucleon magnetic moment data and show that the results from the two approaches are nearly identical. The role of symmetry breaking is clarified while pointing out that simple models explaining the violation of the Gottfried sum rule via pion emission tend to lose the good SU(3) predictions from Cabibbo theory for hyperon decays.
UR - http://www.scopus.com/inward/record.url?scp=0000695848&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(99)00823-0
DO - 10.1016/S0370-2693(99)00823-0
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AN - SCOPUS:0000695848
SN - 0370-2693
VL - 461
SP - 280
EP - 286
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 -