TY - JOUR
T1 - Hyperon form factors and diquark correlations
AU - Dobbs, S.
AU - Seth, Kamal K.
AU - Tomaradze, A.
AU - Xiao, T.
AU - Bonvicini, G.
N1 - Funding Information:
This investigation was done using CLEO data, and as members of the former CLEO Collaboration we thank it for this privilege. This research was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-FG02-87ER40344.
Publisher Copyright:
© 2017 us. Published by the American Physical Society.
PY - 2017/11/17
Y1 - 2017/11/17
N2 - Using e+e-annihilation data taken at the CESR collider with the CLEO-c detector, measurements of hyperon pair production cross sections and elastic and transition electromagnetic form factors have been made at the charmonium resonances: ψ(2S), s=3.69 GeV, |Q2|=13.6 GeV2, L=48 pb-1; ψ(3770), s=3.77 GeV, |Q2|=14.2 GeV2, L=805 pb-1; and ψ(4170), s=4.17 GeV, |Q2|=17.4 GeV2, L=586 pb-1. Results with good statistical precision are obtained with high efficiency particle identification. Systematics of pair production cross sections, and form factors with respect to the number of strange quarks in the hyperons are studied, and evidence is presented for the effects of diquark correlations in comparative results for Λ0 and Σ0, both of which have the same uds quark content but different isospin.
AB - Using e+e-annihilation data taken at the CESR collider with the CLEO-c detector, measurements of hyperon pair production cross sections and elastic and transition electromagnetic form factors have been made at the charmonium resonances: ψ(2S), s=3.69 GeV, |Q2|=13.6 GeV2, L=48 pb-1; ψ(3770), s=3.77 GeV, |Q2|=14.2 GeV2, L=805 pb-1; and ψ(4170), s=4.17 GeV, |Q2|=17.4 GeV2, L=586 pb-1. Results with good statistical precision are obtained with high efficiency particle identification. Systematics of pair production cross sections, and form factors with respect to the number of strange quarks in the hyperons are studied, and evidence is presented for the effects of diquark correlations in comparative results for Λ0 and Σ0, both of which have the same uds quark content but different isospin.
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U2 - 10.1103/PhysRevD.96.092004
DO - 10.1103/PhysRevD.96.092004
M3 - Article
AN - SCOPUS:85037689439
SN - 2470-0010
VL - 96
JO - Physical Review D
JF - Physical Review D
IS - 9
M1 - 092004
ER -