Chiral Symmetry Breaking in Quenched Massive Strong-Coupling QED4

نویسندگان

  • Frederick T. Hawes
  • Anthony G. Williams
چکیده

We present results from a study of subtractive renormalization of the fermion propagator Dyson-Schwinger equation (DSE) in massive strongcoupling quenched QED4. Results are compared for three different fermionphoton proper vertex Ansätze: bare γ, minimal Ball-Chiu, and CurtisPennington. The procedure is straightforward to implement and numerically stable. This is the first study in which this technique is used and it should prove useful in future DSE studies, whenever renormalization is required in numerical work.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Chiral Symmetry Breaking in Strongly Coupled Quenched QED4 Using the Dyson-Schwinger Equation Formalism

We study chiral symmetry breaking in quenched strong-coupling QED4 in arbitrary covariant gauge within the Dyson-Schwinger equation formalism. A recently developed numerical renormalization program is fully implemented. Results are compared for three different fermion-photon proper vertex Ansätze : bare γ, minimal Ball-Chiu, and Curtis-Pennington. The procedure is straightforward to implement a...

متن کامل

Renormalization and Chiral Symmetry Breaking in Quenched QED in Arbitrary Covariant Gauge

We extend a previous Landau-gauge study of subtractive renormalization of the fermion propagator Dyson-Schwinger equation (DSE) in strong-coupling, quenched QED4 to arbitrary covariant gauges. We use the fermion-photon proper vertex proposed by Curtis and Pennington with an additional correction term included to compensate for the small gauge-dependence induced by the ultraviolet regulator. We ...

متن کامل

Renormalization and chiral symmetry breaking in quenched QED in arbitrary covariant gauges.

We extend a previous Landau-gauge study of subtractive renormalization of the fermion propagator Dyson-Schwinger equation (DSE) in strong-coupling, quenched QED4 to arbitrary covariant gauges. We use the fermion-photon proper vertex proposed by Curtis and Pennington with an additional correction term included to compensate for the small gauge-dependence induced by the ultraviolet regulator. We ...

متن کامل

Dyson-schwinger Equations and Their Application to Nonperturbative Field Theory

Two examples of recent progress in applications of the Dyson–Schwinger equation (DSE) formalism are presented: (1) Strong coupling quantum electrodynamics in 4 dimensions (QED4) is an often studied model, which is of interest both in its own right and as an abelian model of quantum chromodynamics (QCD). We present results from a study of subtractive renormalization of the fermion propagator Dys...

متن کامل

On Renormalized Strong-Coupling Quenched QED in Four Dimensions

We study renormalized quenched strong-coupling QED in four dimensions in arbitrary covariant gauge. Above the critical coupling leading to dynamical chiral symmetry breaking, we show that there is no finite chiral limit. This behaviour is found to be independent of the detailed choice of photonfermion proper vertex in the Dyson-Schwinger equation formalism, provided that the vertex is consisten...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1994