Role of centre vortices in dynamical mass generation

Derek B. Leinweber; Patrick O. Bowman; Urs M. Heller; Daniel-Jens Kusterer; Kurt Langfeld; Anthony G. Williams

doi:10.1016/j.nuclphysbps.2006.08.065

Role of centre vortices in dynamical mass generation

Derek B. Leinweber
, Patrick O. Bowman
, Urs M. Heller
, Daniel-Jens Kusterer
, Kurt Langfeld
, Anthony G. Williams

University of Adelaide
Indiana University
American Physical Society
Universitat Tubingen

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The mass and renormalization functions of the nonperturbative quark propagator are studied in SU(3) gauge field theory with a Symanzik-improved gluon action and the AsqTad fermion action. Centre vortices in the gauge field are identified by fixing to maximal centre gauge. The role of centre vortices in dynamical mass generation is explored by removing centre vortices from the gauge fields and studying the associated changes in the quark propagator. We find that dynamical mass generation survives in the vortex-removed SU(3) gauge field theory despite the vanishing of the string tension and suppression of the gluon propagator in the infrared suggesting the possibility of decoupling dynamical mass generation from confinement.

Original language	English
Pages (from-to)	130-135
Number of pages	6
Journal	Nuclear Physics B-Proceedings Supplements
Volume	161
DOIs	https://doi.org/10.1016/j.nuclphysbps.2006.08.065
Publication status	Published - 2006
Externally published	Yes

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10.1016/j.nuclphysbps.2006.08.065

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title = "Role of centre vortices in dynamical mass generation",

abstract = "The mass and renormalization functions of the nonperturbative quark propagator are studied in SU(3) gauge field theory with a Symanzik-improved gluon action and the AsqTad fermion action. Centre vortices in the gauge field are identified by fixing to maximal centre gauge. The role of centre vortices in dynamical mass generation is explored by removing centre vortices from the gauge fields and studying the associated changes in the quark propagator. We find that dynamical mass generation survives in the vortex-removed SU(3) gauge field theory despite the vanishing of the string tension and suppression of the gluon propagator in the infrared suggesting the possibility of decoupling dynamical mass generation from confinement.",

author = "Leinweber, \{Derek B.\} and Bowman, \{Patrick O.\} and Heller, \{Urs M.\} and Daniel-Jens Kusterer and Kurt Langfeld and Williams, \{Anthony G.\}",

year = "2006",

doi = "10.1016/j.nuclphysbps.2006.08.065",

language = "English",

volume = "161",

pages = "130--135",

journal = "Nuclear Physics B-Proceedings Supplements",

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T1 - Role of centre vortices in dynamical mass generation

AU - Leinweber, Derek B.

AU - Bowman, Patrick O.

AU - Heller, Urs M.

AU - Kusterer, Daniel-Jens

AU - Langfeld, Kurt

AU - Williams, Anthony G.

PY - 2006

Y1 - 2006

N2 - The mass and renormalization functions of the nonperturbative quark propagator are studied in SU(3) gauge field theory with a Symanzik-improved gluon action and the AsqTad fermion action. Centre vortices in the gauge field are identified by fixing to maximal centre gauge. The role of centre vortices in dynamical mass generation is explored by removing centre vortices from the gauge fields and studying the associated changes in the quark propagator. We find that dynamical mass generation survives in the vortex-removed SU(3) gauge field theory despite the vanishing of the string tension and suppression of the gluon propagator in the infrared suggesting the possibility of decoupling dynamical mass generation from confinement.

AB - The mass and renormalization functions of the nonperturbative quark propagator are studied in SU(3) gauge field theory with a Symanzik-improved gluon action and the AsqTad fermion action. Centre vortices in the gauge field are identified by fixing to maximal centre gauge. The role of centre vortices in dynamical mass generation is explored by removing centre vortices from the gauge fields and studying the associated changes in the quark propagator. We find that dynamical mass generation survives in the vortex-removed SU(3) gauge field theory despite the vanishing of the string tension and suppression of the gluon propagator in the infrared suggesting the possibility of decoupling dynamical mass generation from confinement.

UR - https://go.openathens.net/redirector/westernsydney.edu.au?url=https://doi.org/10.1016/j.nuclphysbps.2006.08.065

U2 - 10.1016/j.nuclphysbps.2006.08.065

DO - 10.1016/j.nuclphysbps.2006.08.065

M3 - Article

VL - 161

SP - 130

EP - 135

JO - Nuclear Physics B-Proceedings Supplements

JF - Nuclear Physics B-Proceedings Supplements

ER -

Role of centre vortices in dynamical mass generation

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