mathematical-physics / Scattering amplitudes

Single-Minus Gluon Tree Amplitudes

Do the tree-level amplitudes $A_n(1^-, 2^+, \dots, n^+)$ vanish identically, or can they be nonzero in half-collinear kinematics - and if nonzero, what is their all-$n$ closed form?

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mathematical-physicsFeb 12, 2026Significance 15/100Registry: unreviewed

Single-Minus Gluon Tree Amplitudes

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nonzero on half-collinear complex kinematics, with a closed formula

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Do the tree-level amplitudes $A_n(1^-, 2^+, \dots, n^+)$ vanish identically, or can they be nonzero in half-collinear kinematics - and if nonzero, what is their all-$n$ closed form?

nonzero on half-collinear complex kinematics, with a closed formula

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