Role of long-range forces in H sticking to liquid He

Carlo Carraro, Milton W. Cole

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


An analysis is presented of the problem of H sticking to liquid He at low temperature. For the bulk liquid, the sticking coefficient is computed to be less than 0.01 at T<10-4 K, varying as T1/2 for lower T. While apparently contradicted by the recent data of Doyle et al., compatibility is found if cognizance is taken of the fact that the He exists as a film in the experiments. In this case, the underlying substrate greatly enhances the attraction experienced by the H atom. The calculations demonstrate that the effects of retardation and corrections to the distorted-wave Born approximation are significant.

Original languageEnglish (US)
Pages (from-to)12930-12935
Number of pages6
JournalPhysical Review B
Issue number22
StatePublished - 1992

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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