An estimation of non-valence contributions to form factors of heavy-light mesons


  • María Gómez-Rocha Universidad de Granada
  • O. Heger ILF Consulting Engineers
  • W. Schweiger University of Graz



form factors, few-body systems, particle decays, heavy-light mesons, relativistic quantum mechanics


We study the influence of non-valence quark-pair contributions in weak transition form factors of heavy-light mesons. Form factors are first calculated for spacelike momentum transfers in a reference frame where such contributions are suppressed. Analytic continuation to the timelike region and a comparison with the direct decay calculation, done with pure valence degrees of freedom, provides an estimate of the role that quark-pair contributions may play. We use the point form of relativistic quantum mechanics, which is particularly useful when treating heavy-light systems.


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How to Cite

Gómez-Rocha M, Heger O, Schweiger W. An estimation of non-valence contributions to form factors of heavy-light mesons. Supl. Rev. Mex. Fis. [Internet]. 2022 Aug. 1 [cited 2022 Dec. 7];3(3):0308087 1-5. Available from: