The D-1-P-3 transitions in atomic oxygen induced by impact with atomic hydrogen

The rate coefficients for electronic transitions between the P-3 and D-1 states of oxygen atoms induced by collision with hydrogen atoms are computed using a rigorous quantum mechanical method and accurate interaction potentials of the OH molecule. The rate coefficient for the electronic relaxation of O(D-1) to O(P-3) is almost independent of temperature between 1000 and 10,000 K with a magnitude of 10(-12) cm(3) s(-1). The rate coefficient for the electronic excitation of O(P-3) to O(D-1) varies from 5.40 x 10(-23) cm(3) s(-1) at T 1000 K to 5.96; 10(-14) cm(3) s(-1) at T 10; 000 K.