Modification of the B meson mass in a magnetic field from QCD sum rules

C. S. Machado, R. D. Matheus, S. I. Finazzo, J. Noronha

Research output: Contribution to journalArticlepeer-review


In this paper, we extend the well-known QCD sum rules used in the calculation of the mass of heavy mesons to estimate the modification of the charged B-meson mass, mB, in the presence of an external Abelian magnetic field, eB. Two simplifying limits were considered: the weak field limit, in which the external field satisfies eBm2 (with m being any of the masses involved); and the strong field limit, in which the field strength is small in comparison to the bottom quark mass (or the B-meson mass) squared, but it is large compared to the mass of the light quarks, i.e., mu,d2eBmb,B2. We found that mB decreases with the magnetic field in both of these limits.

Original languageEnglish (US)
Article number074027
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number7
StatePublished - Apr 10 2014
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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