Cross Sections for l-Mixing of K(n^{2}F) States in Collisions with Ground-State K(4^{2}S) Atoms

• Authors: M. Głódź , A. Huzandrov , J. Klavins , I. Sydoryk , J. Szonert , S. Gateva-Kostova , K. Kowalski
• Languages of publication: EN

Abstracts

EN

We report measurements of the cross sections σ_{l-mix} for angular momentum mixing of the K(n^{2}F)(n=6, 7, 8) states with the K(n,l > 3) states, induced in thermal collisions with parent ground state K(4^{2}S) atoms. The experiment was performed in a cell heated to ca. 450K. The n^{2}F states were excited in two steps: 4^{2}S → 4^{2}P → n^{2F} by using a diode laser for the first step (a dipole-transition) and a pulsed dye laser for the second step (a quadrupole-transition). The measured values σ_{l-mix} (6^{2}F)=3.6+-2.2, σ_{l-mix} (7^{2}F)=4.2+-2.6 and σ_{l-mix} (8^{2}F)=8.0+-4.6 (in units of 10^{-13}cm^{-1}) are close to the corresponding values of the geometrical cross sections.

Keywords

EN

34.50.Fa

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 98
• Issue: 4
• Pages: 353-361

Dates

published

2000-10

received

2000-08-03

Contributors

author

M. Głódź

• Institute of Physics, Polish Academy of Sciences Al. Lotników 32/46, 02-668 Warszawa, Poland

author

A. Huzandrov

• Institute of Physics, Polish Academy of Sciences Al. Lotników 32/46, 02-668 Warszawa, Poland

author

J. Klavins

• Institute of Atomic Physics and Spectroscopy, University of Latvia, Riga, 1586, Latvia

author

I. Sydoryk

• Institute of Electronics, BAS, 1784 Sofia, Boul. Tsarigradsko Shosse 72, Bulgaria

author

J. Szonert

• Institute of Physics, Polish Academy of Sciences Al. Lotników 32/46, 02-668 Warszawa, Poland

author

S. Gateva-Kostova

• Institute of Electronics, BAS, 1784 Sofia, Boul. Tsarigradsko Shosse 72, Bulgaria

author

K. Kowalski

• Institute of Physics, Polish Academy of Sciences Al. Lotników 32/46, 02-668 Warszawa, Poland