In the present study,we analyze the irregular scattering(IS)of triple electrons in chaotic lithium atom by using classical method.The IS region of triple electrons is characterized by a very narrow window of two dimensionless parameters.The survival probability of the triple electrons in the IS region for the triangle configuration would decay as a function of a regularization time.It was demonstrated that the survival probability of triple electrons(TESP)decays follow an algebraic law P(τ)～τ-αwith a decay exponent αTE=2.02.In addition,the survival probability of double electrons(DESP)decays follow an algebraic law either,the DESP decay exponent αDE=0.78.The decay law for the DESP could be interpreted by a long-lived Kepler orbit formed by outer electron with the atomic kernel.Whereas the explain of the decay law for the TESP is a challenging problem.It was revealed that the typical long-lived trajectory of the triple-electrons in the IS region is composed by two prominent Kepler orbits.Further,a configurations-independent property of the algebraic decay law was studied via the T-shape of triple-electron system.This configuration memory loss may be related to the resonance of triple electrons in the IS region.
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