Mass of heavy-light mesons in a constituent quark picture with partially restored chiral symmetry

Aaron Park, Philipp Gubler, Masayasu Harada, Su Houng Lee, Chiho Nonaka, Woosung Park

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Abstract

We probe effects of the partial chiral symmetry restoration to the mass of heavy-light mesons in a constituent quark model by changing the constituent quark mass of the light quark. Due to the competing effect between the quark mass and the linearly rising potential, whose contribution to the energy increases as the quark mass decreases, the heavy-light meson mass has a minimum value near the constituent quark mass typically used in the vacuum. Hence, the meson mass increases as one decreases the constituent quark mass consistent with recent QCD sum rule analyses, which show an increasing D meson mass as the chiral order parameter decreases.

Original languageEnglish
Article number054035
JournalPhysical Review D
Volume93
Issue number5
DOIs
Publication statusPublished - 2016 Mar 24

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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