skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Attention:

The NSF Public Access Repository (PAR) system and access will be unavailable from 11:00 PM ET on Friday, July 11 until 2:00 AM ET on Saturday, July 12 due to maintenance. We apologize for the inconvenience.


Title: Isotopic shifts in 3 P states of the carbon atom
Award ID(s):
1856702
PAR ID:
10529648
Author(s) / Creator(s):
; ;
Publisher / Repository:
Taylor and Francis
Date Published:
Journal Name:
Molecular Physics
ISSN:
0026-8976
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
More Like this
  1. null (Ed.)
  2. We report on spectroscopic measurements on the 4 f 7 6 s 2 8 S 7 / 2 ∘<#comment/> →<#comment/> 4 f 7 ( 8 S ∘<#comment/> ) 6 s 6 p ( 1 P ∘<#comment/> ) 8 P 9 / 2 transition in neutral europium-151 and europium-153 at 459.4 nm. The center of gravity frequencies for the 151 and 153 isotopes, reported for the first time in this paper, to our knowledge, were found to be 652,389,757.16(34) MHz and 652,386,593.2(5) MHz, respectively. The hyperfine coefficients for the 6 s 6 p ( 1 P ∘<#comment/> ) 8 P 9 / 2 state were found to be A ( 151 ) = −<#comment/> 228.84 ( 2 ) M H z , B ( 151 ) = 226.9 ( 5 ) M H z and A ( 153 ) = −<#comment/> 101.87 ( 6 ) M H z , B ( 153 ) = 575.4 ( 1.5 ) M H z , which all agree with previously published results except for A(153), which shows a small discrepancy. The isotope shift is found to be 3163.8(6) MHz, which also has a discrepancy with previously published results. 
    more » « less