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Four-loop pressure of massless O(N) scalar field theory

- A. Gynther, M. Laine, Y. Schroder, C. Torrero, A. Vuorinen
- Physics
- 29 March 2007

Inspired by the corresponding problem in QCD, we determine the pressure of massless O(N) scalar field theory up to order g 6 in the weak-coupling expansion, where g 2 denotes the quartic coupling… Expand

Hadronic Vacuum Polarization Contribution to the Anomalous Magnetic Moments of Leptons from First Principles.

- S. Borsányi, Z. Fodor, +8 authors B. Tóth
- Physics, Medicine
- Physical review letters
- 14 November 2017

We compute the leading, strong-interaction contribution to the anomalous magnetic moment of the electron, muon, and tau using lattice quantum chromodynamics (QCD) simulations. Calculations include… Expand

Lattice Computation of the Nucleon Scalar Quark Contents at the Physical Point.

- S. Durr, Z. Fodor, +10 authors L. Varnhorst
- Physics, Medicine
- Physical review letters
- 27 October 2015

We present a QCD calculation of the u, d, and s scalar quark contents of nucleons based on 47 lattice ensembles with N_{f}=2+1 dynamical sea quarks, 5 lattice spacings down to 0.054 fm, lattice sizes… Expand

Slope and curvature of the hadronic vacuum polarization at vanishing virtuality from lattice QCD

- S. Borsányi, Z. Fodor, +7 authors B. Tóth
- Physics
- 7 December 2016

We compute the slope and curvature, at vanishing four-momentum transfer squared, of the leading order hadron vacuum polarization function, using lattice QCD. Calculations are performed with 2+1+1… Expand

The leading non-perturbative coefficient in the weak-coupling expansion of hot QCD pressure

- F. Renzo, M. Laine, V. Miccio, Y. Schroder, C. Torrero
- Physics
- 4 May 2006

Using Numerical Stochastic Perturbation Theory within three-dimensional pure SU(3) gauge theory, we estimate the last unknown renormalization constant that is needed for converting the vacuum energy… Expand

Ab-initio calculation of the proton and the neutron's scalar couplings for new physics searches

- S. Borsányi, Z. Fodor, +4 authors L. Varnhorst
- Physics
- 7 July 2020

Many low-energy, particle-physics experiments seek to reveal new fundamental physics by searching for very rare scattering events on atomic nuclei. The interpretation of their results requires… Expand

Perturbative expansion of the energy of static sources at large orders in four-dimensional SU(3) gauge theory

- G. Bali, C. Bauer, A. Pineda, C. Torrero
- Physics
- 13 March 2013

We determine the infinite volume coefficients of the perturbative expansions of the self-energies of static sources in the fundamental and adjoint representations in SU(3) gluodynamics to order… Expand

Four-loop lattice-regularized vacuum energy density of the three-dimensional SU(3) + adjoint Higgs theory

- F. Renzo, M. Laine, Y. Schroder, C. Torrero
- Physics
- 5 August 2008

The pressure of QCD admits at high temperatures a factorization into purely perturbative contributions from ``hard'' thermal momenta, and slowly convergent as well as non-perturbative contributions… Expand

Computing the nucleon sigma terms at the physical point

- C. Torrero, F. T. Collaboration
- Physics
- 10 November 2014

Nucleon sigma terms are quantities that play an important role in various areas: among others, they connect the pion-nucleon and the kaon-nucleon amplitudes to the hadron spectrum and they are also… Expand

High loop renormalization constants by NSPT: a status report

- F. Renzo, L. Scorzato, C. Torrero
- Physics
- 2 October 2007

We present an update on Numerical Stochastic Perturbation Theory projects for Lattice QCD, which are by now run on apeNEXT. As a first issue, we discuss a st rategy to tackle finite size effects… Expand

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