Accurate calculations of magnetic dipole and electric quadrupole   hyperfine coupling constants of 6 P_{3/2} state of Cesium atom : A   Relativistic Coupled Cluster approach
  We report the magnetic dipole and electric quadrupole hyperfine coupling constants of 6 P_{3/2} state of ^{133} Cs(I= {7/2}) obtained from the relativistic coupled cluster (RCC) method. To our knowledge, no prior electric quadrupole hyperfine CC calculation is available for ^{133} Cs(6 P_{3/2}) state. Our computed magnetic dipole (A) and electric quadrupole (B) coupling constants are in excellent agreement with the experiment. 
Rajat K Chaudhuri and Chiranjib Sur