TY - JOUR
T1 - Effect of instantons on the heavy-quark potential
AU - Callan, Curtis Gove
AU - Dashen, Roger
AU - Gross, David J.
AU - Wilczek, Frank
AU - Zee, A.
PY - 1978/1/1
Y1 - 1978/1/1
N2 - A systematic large-mass expansion of the quark-antiquark effective Hamiltonian due to instantons is developed. The O(m-2) spin-spin and spin-orbit contributions are evaluated in the dilute-gas approximation. These can be expressed in terms of differential operators acting on the spin-independent potential. The three-quark effective Hamiltonian (in a color-singlet state) is shown to be a sum of quark-antiquark Hamiltonians. The structure and numerical value of the effective Hamiltonian is discussed.
AB - A systematic large-mass expansion of the quark-antiquark effective Hamiltonian due to instantons is developed. The O(m-2) spin-spin and spin-orbit contributions are evaluated in the dilute-gas approximation. These can be expressed in terms of differential operators acting on the spin-independent potential. The three-quark effective Hamiltonian (in a color-singlet state) is shown to be a sum of quark-antiquark Hamiltonians. The structure and numerical value of the effective Hamiltonian is discussed.
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U2 - 10.1103/PhysRevD.18.4684
DO - 10.1103/PhysRevD.18.4684
M3 - Article
AN - SCOPUS:4243492722
SN - 1550-7998
VL - 18
SP - 4684
EP - 4692
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 12
ER -