Abstract
Processes involving a change of orbital angular momentum l and the dissociation of Rydberg molecules when they collide with inert-gas atoms are considered, using a method based on analyzing the terms of the interacting systems. The proposed method makes it possible to take into account the perturbations in a large group of Rydberg states that weakly penetrate into the ion core and to go beyond the limits of the two-level approximations [R. F. Stebbings and F. B. Dunning, eds., Rydberg States of Atoms and Molecules (Cambridge University Press, Cambridge, 1983; Mir, Moscow, 1985)] widely used in the theory of l mixing with the participation of Rydberg atoms. Using the Na**(nd)+Xe reaction as an example, it is demonstrated that this method gives good results in a wide range of variation of the principal quantum number n of the Rydberg electron (n≈10–40). Features of the l mixing and dissociation of Rydberg molecules are studied for the H2**+Xe system. It is shown that collisional dissociation occurs by the formation of an intermediate Rydberg state of the molecules, followed by self-decay into a dissociative continuum.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. F. Stebbings and F. B. Dunning, eds., Rydberg States of Atoms and Molecules (Cambridge University Press, Cambridge, 1983; Mir, Moscow, 1985).
G. V. Golubkov and G. K. Ivanov, Z. Phys. A 319, 17 (1984).
E. M. Balashov, G. V. Golubkov, and G. K. Ivanov, Zh. Éksp. Teor. Fiz. 103, 374 (1993) [JETP 76, 200 (1993)].
G. V. Golubkov, G. K. Ivanov, and E. M. Balashov, Khim. Fiz. 14, No. 8, 38 (1995).
Matsuzava, J. Chem. Phys. 55, 2685 (1971); 58, 2678 (1971); Phys. Rev. A 18, 1396 (1978).
E. Fermi, Nuovo Cimento 11, 157 (1934).
T. F. O’Malley, Phys. Rev. 130, 1963 (1963); 134, 1198 (1963).
L. Petitjean and F. Gounand, Phys. Rev. A 30, 2946 (1984).
E. E. Nikitin and S. Ya. Umanskii, Theory of Slow Atomic Collisions (Springer-Verlag, New York, 1984; Atomizdat, Moscow, 1979).
J. I. Gerstein, Phys. Rev. A 14, 1354 (1976).
V. S. Lebedev and I. I. Fabrikant, Phys. Rev. A 54, 2888 (1996).
A. Omont, J. Phys. (Paris) 38, 1343 (1977).
M. Chapelet, J. Boulmer, J. C. Gauthier, and J. F. Delpech, J. Phys. B 15, 3455 (1982).
R. Karchu, T. F. Gallaher, F. Gounand, K. A. Safinya, and W. Sandner, Phys. Rev. A 27, 795 (1983).
C. F. Dybko, M. N. Efimenko, V. A. Efimov, S. V. Podios, Kvant. Elektron. (Moscow) 22, 946 (1995) [Quantum Electron. 25, 914 (1995)].
B. M. Smirnov and A. A. Radtsig, Handbook on Atomic and Molecular Physics (Atomizdat, Moscow, 1980).
I. L. Beigman and V. S. Lebedev, Phys. Rep. 250, 95 (1995).
G. Herzberg and Ch. Jungen, J. Mol. Spectrosc. 41, 425 (1972).
G. F. Drukarev, Zh. Éksp. Teor. Fiz. 83, 946 (1982) [Sov. Phys. JETP 56, 532 (1982)].
A. R. P. Rau, J. Phys. B 17, L75 (1984).
G. V. Golubkov, G. K. Ivanov, and M. G. Golubkov, Khim. Fiz. 15, 36 (1996).
H. Takagi and H. Nakamura, Phys. Rev. A 27, 691 (1983).
G. V. Golubkov, G. K. Ivanov, and I. E. Cherlina, Opt. Spektrosk. 54, 427 (1983) [Opt. Spectrosc. 54, 251 (1983)].
G. V. Golubkov, G. K. Ivanov, and E. M. Balashov, Opt. Spektrosk. 80, 33 (1996) [Opt. Spectrosc. 80, 27 (1996)].
Author information
Authors and Affiliations
Additional information
Zh. Éksp. Teor. Fiz. 114, 100–113 (July 1998)
Rights and permissions
About this article
Cite this article
Golubkov, G.V., Ivanov, G.K., Balashov, E.M. et al. l mixing and dissociation of Rydberg molecules accompanying slow collisions with inert-gas atoms. J. Exp. Theor. Phys. 87, 56–63 (1998). https://doi.org/10.1134/1.558644
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.558644