Comparative theoretical study of hyperfine interactions of muonium in A- and B-form DNA

    Authors

    R. H. Scheicher; E. Torikai; F. L. Pratt; K. Nagamine;T. P. Das

    Comments

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    Abbreviated Journal Title

    Hyperfine Interact.

    Keywords

    DNA; first-principles calculations; muon spin relaxation; Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter; Physics, Nuclear

    Abstract

    Muon Spin Relaxation (mu SR) experiments in A- and B-form DNA have shown evidence for all enhanced electron mobility in the more closely-packed A-form. Besides dynamic effects (electronic diffusion) that could cause the observed difference in muon spin relaxation, one should also carefully examine the difference in the strengths of the hyperfine interactions of the muon ( mu(+)) with the moving electron in the two forms of DNA, since this could contribute to the observed difference in the moon spin relaxation rates as well. We have therefore investigated the (static) trapping properties of muon and muonium (mu(+)e(-)) in A-form and B-form DNA from first-principles with the aim to Understand how the different structural geometries of A- and B-form DNA can influence the hyperfine interaction of trapped muonium.

    Journal Title

    Hyperfine Interactions

    Volume

    158

    Issue/Number

    1-4

    Publication Date

    1-1-2004

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    53

    Last Page

    57

    WOS Identifier

    WOS:000235281400010

    ISSN

    0304-3843

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