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The implementation of the Background Field Method (BFM) for quantum field theories is analysed within the Batalin-Vilkovisky (BV) formalism. We provide a systematic way of constructing general splittings of the fields into classical and…

High Energy Physics - Theory · Physics 2009-11-10 P. A. Grassi , T. Hurth , A. Quadri

We show that the background field method (BFM) is a simple way of deriving the same gauge-invariant results which are obtained by the pinch technique (PT). For illustration we construct gauge-invariant self-energy and three-point vertices…

High Energy Physics - Phenomenology · Physics 2009-10-28 Shoji Hashimoto , Jiro Kodaira , Yoshiaki Yasui , Ken Sasaki

We study the renormalization of non-semisimple gauge models quantized in the `t Hooft-background gauge to all orders. We analyze the normalization conditions for masses and couplings compatible with the Slavnov-Taylor and Ward-Takahashi…

High Energy Physics - Theory · Physics 2008-11-26 Pietro Antonio Grassi

We investigate the background field method with the Batalin-Vilkovisky formalism, to generalize known results, study parametric completeness and achieve a better understanding of several properties. In particular, we study renormalization…

High Energy Physics - Theory · Physics 2014-02-12 Damiano Anselmi

Combining the effect of an intermediate renormalization prescription (zero momentum subtraction) and the background field method (BFM), we show that the algebraic renormalization procedure needed for the computation of radiative corrections…

High Energy Physics - Phenomenology · Physics 2009-11-07 P. A. Grassi , T. Hurth , M. Steinhauser

Using the background field method and the Batalin-Vilkovisky formalism, we prove a key theorem on the cohomology of perturbatively local functionals of arbitrary ghost numbers, in renormalizable and nonrenormalizable quantum field theories…

High Energy Physics - Theory · Physics 2016-04-06 Damiano Anselmi

The magnetic backgrounds that physically give rise to spacetime noncommutativity are generally treated using noncommutative geometry. In this article we prove that also the theory of generalised complex manifolds contains the necessary…

High Energy Physics - Theory · Physics 2009-11-11 J. M. Isidro

We present a reformulation of the background field method for Yang-Mills type theories, based on using a superalgebra of generators of BRST and background field transformations. The new approach enables one to implement and consistently use…

High Energy Physics - Theory · Physics 2019-09-11 Breno L. Giacchini , Peter M. Lavrov , Ilya L. Shapiro

We show how to carry out the gauging of the Poisson sigma model in an AKSZ inspired formulation by coupling it to the a generalization of the Weil model worked out in ref. arXiv:0706.1289 [hep-th]. We call the resulting gauged field theory,…

High Energy Physics - Theory · Physics 2014-11-18 Roberto Zucchini

We show that in the background field method (BFM) quantization of Yang-Mills theory the dependence of the vertex functional on the background field is controlled by a canonical transformation w.r.t. the Batalin-Vilkovisky bracket, naturally…

High Energy Physics - Theory · Physics 2015-06-03 Andrea Quadri

We investigate the consistency of the background-field formalism when applying various regularizations and renormalization schemes. By an example of a two-dimensional $\sigma$ model it is demonstrated that the background-field method gives…

High Energy Physics - Theory · Physics 2007-05-23 L. V. Avdeev , D. I. Kazakov , M. Yu. Kalmykov

In this letter we make use of the Background Field Method (BFM) to compute the effective potential of an SU(2) gauge field theory, in the presence of chemical potential and temperature. The main idea is to consider the chemical potential as…

High Energy Physics - Phenomenology · Physics 2009-11-11 M. Loewe , S. Mendizabal , J. C. Rojas

We study a formulation of the standard Poisson sigma model in which the target space Poisson manifold carries the Hamilton action of some finite dimensional Lie algebra. We show that the structure of the action and the properties of the…

Mathematical Physics · Physics 2009-11-07 Roberto Zucchini

We extend the coupling to the topological backgrounds, recently worked out for the 2-dimensional BF-model, to the most general Poisson sigma models. The coupling involves the choice of a Casimir function on the target manifold and modifies…

High Energy Physics - Theory · Physics 2017-02-01 Dario Rosa

We continue the study of nonrelativistic string theory in background fields. Nonrelativistic string theory is described by a nonlinear sigma model that maps a relativistic worldsheet to a non-Lorentzian and non-Riemannian target space…

High Energy Physics - Theory · Physics 2021-02-10 Ziqi Yan , Matthew Yu

The theory of Poisson-$\sigma$-models employs the mathematical notion of Poisson manifolds to formulate and analyze a large class of topological and almost topological two dimensional field theories. As special examples this class of field…

High Energy Physics - Theory · Physics 2015-06-26 Peter Schaller , Thomas Strobl

The symplectic quantization technique is applied to open free membrane and strings in pp-wave background and background gauge field obtained by compactifying the open membrane in the presence of a background anti-symmetric 3--form field. In…

High Energy Physics - Theory · Physics 2008-11-26 Sunandan Gangopadhyay

Application of the background-field method yields a gauge-invariant effective action for the electroweak Standard Model, from which simple QED-like Ward identities are derived. As a consequence of these Ward identities, the background-field…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Denner , S. Dittmaier , G. Weiglein

We present the BFV and the BV extension of the Poisson sigma model (PSM) twisted by a closed 3-form H. There exist superfield versions of these functionals such as for the PSM and, more generally, for the AKSZ sigma models. However, in…

High Energy Physics - Theory · Physics 2020-12-11 Noriaki Ikeda , Thomas Strobl

We show that the requirement that a SU(N) Yang-Mills action (gauge fixed in a linear covariant gauge) is invariant under both the Becchi-Rouet-Stora-Tyutin (BRST) symmetry as well as the corresponding antiBRST symmetry, automatically…

High Energy Physics - Theory · Physics 2013-11-13 D. Binosi , A. Quadri
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