D mesons in a magnetic field

Philipp Gubler, Koichi Hattori, Su Houng Lee, Makoto Oka, Sho Ozaki, Kei Suzuki

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Abstract

We investigate the mass spectra of open heavy flavor mesons in an external constant magnetic field within QCD sum rules. Spectral Ansätze on the phenomenological side are proposed in order to properly take into account mixing effects between the pseudoscalar and vector channels, and the Landau levels of charged mesons. The operator product expansion is implemented up to dimension-5 operators. As a result, we find for neutral D mesons a significant positive mass shift that goes beyond simple mixing effects. In contrast, charged D mesons are further subject to Landau level effects, which together with the mixing effects almost completely saturate the mass shifts obtained in our sum rule analysis.

Original languageEnglish
Article number054026
JournalPhysical Review D
Volume93
Issue number5
DOIs
Publication statusPublished - 2016 Mar 15

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Gubler, P., Hattori, K., Lee, S. H., Oka, M., Ozaki, S., & Suzuki, K. (2016). D mesons in a magnetic field. Physical Review D, 93(5), [054026]. https://doi.org/10.1103/PhysRevD.93.054026