The infrared dynamics of Minimal Walking Technicolor
arXiv:1004.3206 · doi:10.1103/PhysRevD.82.014510
Abstract
We study the gauge sector of Minimal Walking Technicolor, which is an SU(2) gauge theory with nf=2 flavors of Wilson fermions in the adjoint representation. Numerical simulations are performed on lattices Nt x Ns^3, with Ns ranging from 8 to 16 and Nt=2Ns, at fixed β=2.25, and varying the fermion bare mass m0, so that our numerical results cover the full range of fermion masses from the quenched region to the chiral limit. We present results for the string tension and the glueball spectrum. A comparison of mesonic and gluonic observables leads to the conclusion that the infrared dynamics is given by an SU(2) pure Yang-Mills theory with a typical energy scale for the spectrum sliding to zero with the fermion mass. The typical mesonic mass scale is proportional to, and much larger than this gluonic scale. Our findings are compatible with a scenario in which the massless theory is conformal in the infrared. An analysis of the scaling of the string tension with the fermion mass towards the massless limit allows us to extract the chiral condensate anomalous dimension γ*, which is found to be γ*=0.22+-0.06.
29 pages, 16 figures
References in corpus (51)
- A New Way to Set the Energy Scale in Lattice Gauge Theories and its Application to the Static Force and in SU(2) Yang--Mills Theory
- Strong Dynamics and Electroweak Symmetry Breaking
- Flavor Symmetry and the Static Potential with Hypercubic Blocking
- The Nf=0 heavy quark potential from short to intermediate distances
- Orientifold theory dynamics and symmetry breaking
- Walking in the SU(N)
- Quark confinement and the bosonic string
- Accelerating Dynamical Fermion Computations using the Rational Hybrid Monte Carlo (RHMC) Algorithm with Multiple Pseudofermion Fields
- Lattice Study of the Conformal Window in QCD-like Theories
- Glueballs and k-strings in SU(N) gauge theories : calculations with improved operators
- Minimal Walking on the Lattice
- Higher representations on the lattice: numerical simulations. SU(2) with adjoint fermions
- Lattice Study of Conformal Behavior in SU(3) Yang-Mills Theories
- Volume independence in large Nc QCD-like gauge theories
- Zero of the discrete beta function in SU(3) lattice gauge theory with color sextet fermions
- Phase diagram of SU(2) with 2 flavors of dynamical adjoint quarks
- Confining strings in SU(N) gauge theories
- Evolution of the coupling constant in SU(2) lattice gauge theory with two adjoint fermions
- The physics of eight flavours
- Nearly conformal gauge theories in finite volume
- Deconfinement and Chiral Symmetry Restoration in an SU(3) Gauge Theory with Adjoint Fermions
- Conformal vs confining scenario in SU(2) with adjoint fermions
- Mass anomalous dimension in SU(2) with two adjoint fermions
- Spectrum of SU(2) lattice gauge theory with two adjoint Dirac flavours
- Phase structure of SU(3) gauge theory with two flavors of symmetric-representation fermions
- Conformality or confinement: (IR)relevance of topological excitations
- On the effective action of confining strings
- Finite size phase transitions in QCD with adjoint fermions
- Mesonic spectroscopy of Minimal Walking Technicolor
- Finite-size scaling tests for SU(3) lattice gauge theory with color sextet fermions
- Investigating the critical properties of beyond-QCD theories using Monte Carlo Renormalization Group matching
- Toward TeV Conformality
- Walking Dynamics from String Duals
- Phase diagrams of SU(N) gauge theories with fermions in various representations
- Comments on lattice gauge theories with infrared-attractive fixed points
- Higher representations on the lattice: perturbative studies
- Thermodynamics of lattice QCD with 2 flavours of colour-sextet quarks: A model of walking/conformal Technicolor
- A High Precision Study of the QQ(bar) Potential from Wilson Loops in the Regime of String Breaking
- Static quark potential and effective string corrections in the (2+1)-d SU(2) Yang-Mills theory
- The Conformal Window from the Worldline Formalism
- Dynamics in the Conformal Window in QCD like Theories
- Chiral properties of SU(3) sextet fermions
- Conformality or confinement (II): One-flavor CFTs and mixed-representation QCD
- Finite Volume Phases of Large N Gauge Theories with Massive Adjoint Fermions
- A new scheme for the running coupling constant in gauge theories using Wilson loops
- Higher Representations Duals
- Excited-State Effective Masses in Lattice QCD
- Metastable nonconfining states in SU(3) lattice gauge theory with sextet fermions
- The large limit from the lattice
- Lattice gauge theory in technicolor
- Spectrum of orientifold QCD in the strong coupling and hopping expansion approximation
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- Lattice tests of beyond Standard Model dynamics
- Can the nearly conformal sextet gauge model hide the Higgs impostor?
- Twelve massless flavors and three colors below the conformal window
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- Running coupling and mass anomalous dimension of SU(3) gauge theory with two flavors of symmetric-representation fermions
- Mesonic spectroscopy of Minimal Walking Technicolor
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- Running coupling constant of ten-flavor QCD with the Schrödinger functional method
- Improved Lattice Spectroscopy of Minimal Walking Technicolor
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- Parity Doubling and the S Parameter Below the Conformal Window
- SO(3) "Nuclear Physics" with ultracold Gases
- Strong dynamics, composite Higgs and the conformal window
- MCRG Minimal Walking Technicolor
- Conformal Behavior at Four Loops and Scheme (In)Dependence
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- Large volumes and spectroscopy of walking theories
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- Chiral phase transition at finite temperature and conformal dynamics in large Nf QCD
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- Finite size scaling in minimal walking technicolor
- Walking near a Conformal Fixed Point: the 2-d O(3) Model at theta near pi as a Test Case
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- Realization of Center Symmetry in Two Adjoint Flavor Large-N Yang-Mills
- Mass anomalous dimension of Adjoint QCD at large N from twisted volume reduction
- The spectrum and mass anomalous dimension of SU(2) adjoint QCD with two Dirac flavours
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- Global Structure of Conformal Theories in the SU(3) Gauge Theory
- Meson spectra of asymptotically free gauge theories from holography
- A possible phase for adjoint QCD
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- Higher-Order Scheme-Independent Calculations of Physical Quantities in the Conformal Phase of a Gauge Theory
- Anomalous dimensions on the lattice
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- Measurement of the mass anomalous dimension of near-conformal adjoint QCD with the gradient flow
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