Collisional excitation among the seven lowest states of TiXII |
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| Authors: | M Mohan A Hibbert |
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| Institution: | (1) International Centre for Theoretical Physics, Trieste, Italy;(2) Department of Applied Mathematics and Theoretical Physics, The Queen’s University of, BT7 1NN Belfast, Northern Ireland;(3) Present address: Department of Physics, University of Delhi, 110 007 Delhi, India |
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| 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 logT
e=4.0 to logT
e=6.0, withT
e 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. |
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| Keywords: | Collision strength R-matrix method |
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