Laser-induced effects for overlapping autoionizing Rydberg states of xenon

The effect of a laser field on the cross section of photoionization of an atom by probe radiation in the region of closely lying autoionizing resonances is studied theoretically. The cross sections in the region of the overlapping autoionizing Rydberg states 5p(5)((2)p,(1/2))6d'J = 1 and 5P(5)((2)p(1/2))8s' J = 1 resonantly coupled with the discrete state 5p(5)(P-2(3/2))7p[1/2](1) in the xenon atom are calculated. The behavior of the shape and position of resonances in relation to the frequency and intensity of laser radiation is studied.