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The 37th International Symposium on Lattice Field Theory (Lattice 2019)

16–22 Jun 2019
Asia/Shanghai timezone

Session

Vacuum Structure and Confinement

21 Jun 2019, 14:00

Conveners

Vacuum Structure and Confinement

  • Jeff Greensite (San Francisco State University)

Presentation materials

There are no materials yet.

  1. 71. Quark confinement in the Yang-Mills theory with a gauge-invariant gluon mass in view of the gauge-invariant BEH mechanism
    Akihiro Shibata (KEK)
    21/06/2019, 14:00
    Vacuum Structure and Confinement
    Parallel

    In order to clarify the mechanism of quark confinement in the Yang-Mills theory with mass gap, we propose to investigate the massive Yang-Mills model, namely, Yang-Mills theory with ``a gauge-invariant gluon mass term’’, to be deduced from a specific gauge-scalar model with a single radially-fixed scalar field under a suitable constraint called the reduction condition. The gluon mass term...

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  2. 96. Topology of Trace Deformed Yang-Mills Theory
    Marco Cardinali (INFN - National Institute for Nuclear Physics)
    21/06/2019, 14:20
    Vacuum Structure and Confinement
    Parallel

    In this work we study, by means of Monte Carlo simulations, the
    topological properties of Yang-Mills (YM) theory in presence of the
    double trace deformation. The deformation consists of an extra piece
    added to the standard YM action, which forbids the deconfinement phase
    transition even at high temperature. We compute topological
    observables (such as the topological susceptibility and the...

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  3. 102. Spectral Projectors Method for Staggered Fermions
    Claudio Bonanno (INFN - National Institute for Nuclear Physics)
    21/06/2019, 14:40
    Vacuum Structure and Confinement
    Parallel

    We extend the spectral projectors method to staggered fermions. Applying the index theorem to the staggered Dirac operator it is possible to work out an expression for the topological susceptibility which depends only on the orthogonal projectors on quasi zero-modes, as it has already been done for Dirac-Wilson fermions.
    Besides, we generalize this method deriving analogous expressions for all...

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  4. 189. Does confinement imply CP invariance of the strong interactions?
    Gerrit Schierholz (DESY)
    21/06/2019, 15:00
    Vacuum Structure and Confinement
    Parallel

    Using the gradient flow, the strong coupling constant alpha_s and the vacuum angle theta of the SU(3) Yang-Mills theory are investigated in the infrared limit. It appears that theta tends to zero (mod 2 pi), thus restoring CP invariance, while alpha_s shows power-law divergence, which naturally leads to a linear confining potential.

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  5. 235. How to extract the "Abelian" part of double-winding Wilson loop
    Ryutaro Matsudo (Chiba University)
    21/06/2019, 15:20
    Vacuum Structure and Confinement
    Parallel

    It is known that the naive Abelian Wilson loop defined by the Abelian projection cannot reproduce the correct behavior of the double-winding Wilson loop. It is also known that the naive Abelian Wilson loop cannnot reproduce the correct behavior of the Wilson loops in higher representations, but this problem was recently solved by using the redefiend "Abelian" Wilson loop.
    In this talk, we will...

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