• Collisional excitation among the seven lowest states of TiXII

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    • Keywords


      Collision strength; R-matrix method

    • Abstract


      Collision strengths have been calculated for electron impact excitation of sodium-like TiXII for all 21 transitions amongst its lowest seven states. Configuration interaction wave functions have been used to represent the target states. The standard and no-exchangeR-matrix codes have been used to calculate the contribution of partial waves withL⩽8 andL>8 respectively. Collision strengths are tabulated at selected energies in the range 26 to 50 Ryd. Effective collision strengths are tabulated for electron temperatures in the range logTe=4.0 to logTe=6.0, withTe in K. This is the first detailed calculation on this ion in which the effects of exchange, channel couplings and short-range correlation are taken into account.

    • Author Affiliations


      M Mohan1 2 A Hibbert3

      1. International Centre for Theoretical Physics, Trieste, Italy
      2. Department of Physics, University of Delhi, Delhi - 110 007, India
      3. Department of Applied Mathematics and Theoretical Physics, The Queen’s University of, Belfast - BT7 1NN, Northern Ireland
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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