Rydberg energies and transition probabilities of Li I for np–ms (m ≤ 5) transitions

Beni-Suef University Journal of Basic and Applied Sciences

Table 5 Lifetimes of Li I's 2p, 3s, 3p, and 4p states

Level	Energy	Lifetime (ns)
Level	cm⁻¹	This work	Experimental value and method		Theoretical value and method
2p	14,904	27.400	27.102	Photoassociation [18]	27.2	Central field approximation [6]
			27.29	Laser excited atoms [15]	27.24	Realistic potentials [17]
			27.22 (0.2)	Delayed coincidence technique [20]	27.32	Coulomb approximation [8]
			26.99 (0.16)	Photoassociation in a magneto-optical trap [21]	27.12	CI-Hylleraas method [25]
			27.11 (6)	Beam-gas-laser spectroscopy [22]	27.13	Coulomb approximation [26, 27]
			27.9 (1)	Time resolved detection [23]
			26.9 (8)	Pulsed dye laser excitation [24]
			26.1 (1.0)	Beam foil excitation [14]
3s	27,206.1	30.1736	29.72 (17)	Beam-gas-laser spectroscopy [22]	30.46	Coulomb approximation [26, 27]
					30	Central field approximation [6]
					30.02	Realistic potentials [14]
					30.32	Coulomb approximation [8]
3p	30,925.4	215.578	203 (8)	Level-crossing spectroscopy [28]	209	Central field approximation [6]
			182 (6)	Level crossing spectroscopy [28]	212	Realistic potentials [17]
					216.4	Coulomb approximation [8]
4p	36,469.6	416.997			364	Central field approximation [6]
					383.9	Realistic potentials [17]
					402.6	Coulomb approximation [8]