Abstract
The renormalized quark Dyson-Schwinger equation is studied in the limit of the renormalized current heavy quark mass (Formula presented) We are particularly interested in the analytic pole structure of the heavy quark propagator in the complex momentum plane. Approximations in which the quark-gluon vertex is modelled by either the bare vertex or the Ball-Chiu Ansatz and the Landau gauge gluon propagator takes either a Gaussian form or a Gaussian form with an ultraviolet asymptotic tail are used.
| Original language | English |
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| Pages (from-to) | 276-286 |
| Number of pages | 11 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 57 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1998 |