The Calculation of the Fine and the Hyperfine Structures of 2³P and 2¹P States of the Helium Isoelectronic Sequence up toZ=10

Hyperfine-Induced 1s2s1S0-1s2p3Myers1, Howie2, Thompson3 et al. 1996Phys. Rev. Lett.23070View full textAdd to dashboardCite

“…[16] 0.0013 0.0008 Quadrupole [16,15] 20.0004 0.0010 Total 0.5734 0.3638 This experiment 0.5726(7) 0.3644 7calculations of Ref. [15], corrected in the same way as the hyperfine intervals in Table II, we obtain a correction of 0.3624 cm 21 to be subtracted from our measured interval. Alternatively, it can be shown that the required correction is equal to the F 1 2 0 hyperfine interval, with small corrections for the quadrupole interaction (20.0010 cm 21 ) and mixing with the J 2 fine-structure level (20.0004 cm 21 ).…”

“…Our final value for the 2 3 P 1,F2 -3 P 0 interval is 9.0339͑7͒ cm 21 . In Table II we compare our results for the 2 3 P 1 hyperfine splittings with theoretical results of Ohtsuki and Hijikata [15], which we have corrected for relativistic, QED, and nuclear size effects, and also for the small quadrupole interaction, using the procedures detailed in Ref. [16].…”

“…Ohtsuki and Hijikata [15] 0.5725 0.3620 Rel., QED, Nuc. [16] 0.0013 0.0008 Quadrupole [16,15] 20.0004 0.0010 Total 0.5734 0.3638 This experiment 0.5726(7) 0.3644 7calculations of Ref.…”

“…Ohtsuki and Hijikata [15] 0.5725 0.3620 Rel., QED, Nuc. [16] 0.0013 0.0008 Quadrupole [16,15] 20.0004 0.0010 Total 0.5734 0.3638 This experiment 0.5726(7) 0.3644 7calculations of Ref. [15], corrected in the same way as the hyperfine intervals in Table II, we obtain a correction of 0.3624 cm 21 to be subtracted from our measured interval.…”

“…Since this is less dependent on the numerical accuracy of the results in Ref. [15], and on the relativistic, QED, and nuclear size corrections, we use this as the required correction.…”