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Note on the evaluation of one type scalar three-point integral extracted from the Higgs boson decay
Jin Zhang
Motivated by the Higgs boson decaying to at leading order approximation, the amplitude of scalar one loop three-point diagram with two different internal masses are evaluated…
Infrared scalar one-loop three point integrals in loop regularization
Jin Zhang
The infrared divergent scalar three-point integrals are evaluated by the loop regularization method. Three kinds of infrared divergent integrals, i.e., massless triangle diagram, t…
Scalar one-loop 4-point integral with one massless vertex in loop regularization
Jin Zhang
The scalar one-loop 4-point function with one massless vertex is evaluated analytically by employing the loop regularization method. According to the method a characteristic scale…
Instanton effects on the twist-three light-cone distribution amplitudes of pion and light scalar mesons above 1GeV
Jin Zhang, Zhu-feng Zhang, Hong-ying Jin
By use of single instanton approximation the twist-3 light-cone distribution amplitudes of pion as well as the p-wave mesons, i.e., , and $a_{0}(1…
SU(3)-symmetry breaking effects and mass splitting in scalar and pseudoscalar mesons from QCD sum rules
H. Y. Jin, J. Zhang, Z. F. Zhang +1
Motivated by the similar mass splitting in light-light and heavy-light meson system in and channel, taking into account the operator mixing to obtain an…