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Observation of metastable states in the autodetachment continuum of the negative molecular ion NH−

✍ Scribed by Mohammad Al-Za'al; Harold C. Miller; John W. Farley

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
399 KB
Volume
131
Category
Article
ISSN
0009-2614

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✦ Synopsis

We have measured the fundamental vibrational-rotational spectrum of NH-in the ground electronic state (X *l-I). Many transitions were observed in which both the initial and final states are several eV above the autodetachment limit. The states in the ground vibrational manifold (lower A doublet) are stable against autodetachment on the experimental time scale ( z 10 us).

The transitions to v= 1 states (lower A doublet) have 30-100 MHz linewidths, independent of J. This has implications for selection rules and the dynamics of the autodetachment process.

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