Abstract:
Experimental and theoretical collisional excitation cross sections are reported for the transitions 3s<sup>2</sup>3p<sup>3</sup> <sup>4</sup>s° (leads to)3s<sup>2</sup>3p<sup>3</sup><sup>2</sup>D°, <sup>2</sup>p° and 3s3p<sup>4</sup> <sup>4</sup>p in s//.