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- W4293400596 abstract "The modified static exchange model (MSEM) recently introduced by Ray [1] to study two-atomic collision processes at low and cold-energies, is used for detailed analysis of the long-range effects due to induced dipole-dipole van der Waals interaction between Ps and H atoms. The MSEM includes the non-adiabatic short-range effect due to electron-exchange and the long-range effect due to induced dynamic dipole polarisabilities of the atoms. The effective interatomic potential is highly sensitive to the minimum distance between the atoms ( ). The s-, p- and d- wave elastic phase shifts, corresponding partial cross sections, the scattering length and effective ranges are calculated and studied with the variation of the chosen least interatomic distance between them. It is found that the scattering length is highly sensitive to the effective interatomic potential that depends on the least interatomic distance. In addition the studies are made in search of Feshbach resonances. The observed interesting feature with the variation of in the triplet channel invites more accurate investigations if new physics." @default.
- W4293400596 created "2022-08-28" @default.
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- W4293400596 date "2013-08-08" @default.
- W4293400596 modified "2023-09-26" @default.
- W4293400596 title "The Effect of van der Waals interaction in Elastic Collision between Ps(1s) and H(1s)" @default.
- W4293400596 doi "https://doi.org/10.48550/arxiv.1308.1939" @default.
- W4293400596 hasPublicationYear "2013" @default.
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