Variations of nuclear binding with quark masses

M Carrillo-Serrano, I Cloët, K Tsushima, A Thomas, Iraj Afnan

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    Abstract

    We investigate the variation with light quark mass of the mass of the nucleon as well as the masses of the mesons commonly used in a one-boson-exchange model of the nucleon-nucleon force. Care is taken to evaluate the meson mass shifts at the kinematic point relevant to that problem. Using these results, we evaluate the corresponding changes in the energy of the 1S0 antibound state and the binding energies of the deuteron, triton, and selected finite nuclei by using a one-boson exchange model. The results are discussed in the context of possible corrections to the standard scenario for Big Bang nucleosynthesis in the case where, as suggested by recent observations of quasar absorption spectra, the quark masses may have changed over the age of the Universe.

    Original languageEnglish
    Article number015801
    Pages (from-to)015801-1-015801-10
    Number of pages10
    JournalPhysical Review C
    Volume87
    Issue number1
    DOIs
    Publication statusPublished - 9 Jan 2013

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    Carrillo-Serrano, M., Cloët, I., Tsushima, K., Thomas, A., & Afnan, I. (2013). Variations of nuclear binding with quark masses. Physical Review C, 87(1), 015801-1-015801-10. [015801]. https://doi.org/10.1103/PhysRevC.87.015801