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Title: Ultracold elastic H(bar sign)-He scattering

Journal Article · · Physical Review. A
;  [1]
  1. Department of Physics, Bangabasi College, 19, Raj Kumar Chakravorty Sarani, Kolkata 700 009, (India)

In view of the current interest in trapping antihydrogen H(bar sign) atoms below 1 K, the s-wave elastic-scattering parameters for the antihydrogen scattering off atomic helium target are calculated in the energy range 1x10{sup -16}-1x10{sup -2} a.u. using close-coupling models. The predicted cross section will help to simulate the evolution of a realistic mixture of He and H{sub 2} through the process involving ejection of H(bar sign) from the trap. The trend of the present results with different basis sets conclusively indicates the reliability of the predicted results.

OSTI ID:
20640046
Journal Information:
Physical Review. A, Vol. 68, Issue 2; Other Information: DOI: 10.1103/PhysRevA.68.022504; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English