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The magnetic fields generated in non-central heavy-ion collisions are among the strongest fields produced in the Universe, reaching magnitudes comparable to the scale of the strong interactions. Backed by model simulations, the resulting…

High Energy Physics - Lattice · Physics 2021-11-29 B. B. Brandt , F. Cuteri , G. Endrődi , G. Markó , A. D. M. Valois

We present continuum-estimated (2+1)-flavor lattice QCD results for second-order fluctuations of conserved charges and the leading-order equation of state in the presence of strong magnetic fields at nonzero baryon chemical potential, using…

High Energy Physics - Lattice · Physics 2026-04-02 Heng-Tong Ding , Jin-Biao Gu , Arpith Kumar , Sheng-Tai Li

We present the results of our lattice QCD computation of the electric ($E_{1}$) and magnetic $(M_{2})$ form factors relevant to the $\chi_{c1}\to J/\psi\,\gamma$ decay by using the gauge field configurations produced by the Extended Twisted…

High Energy Physics - Lattice · Physics 2025-06-23 D. Bečirević , R. Di Palma , R. Frezzotti , G. Gagliardi , V. Lubicz , F. Sanfilippo , N. Tantalo

Quantum chromodynamics (QCD) at sufficiently high density is expected to undergo a chiral phase transition. Understanding such a transition is of particular importance for neutron star or quark star physics. In Lagrangian SU(3) lattice…

High Energy Physics - Lattice · Physics 2009-11-07 Yi-Zhong Fang , Xiang-Qian Luo

Quantum Chromodynamics (QCD) admits a topological $\bar{\theta}$ term that violates charge-parity ($CP$) symmetry, yet experiments indicate that $\bar{\theta}$ is extremely small. To investigate this problem in a controlled setting, we…

High Energy Physics - Lattice · Physics 2026-04-15 Le Bin Ho

We present lattice Monte Carlo results on the chromoelectric field created by a static quark-antiquark pair in the vacuum of QCD with 2+1 dynamical staggered fermions at physical masses. After isolating the nonperturbative, confining part…

High Energy Physics - Lattice · Physics 2024-10-01 M. Baker , P. Cea , V. Chelnokov , L. Cosmai , A. Papa

I discuss different approaches to finite density lattice QCD. In particular, I focus on the structure of the phase diagram and discuss attempts to determine the location of the critical end-point. Recent results on the transiton line as…

High Energy Physics - Lattice · Physics 2008-11-26 Christian Schmidt

A longstanding issue in the study of quantum chromodynamics (QCD) is its behavior at nonzero baryon density, which has implications for many areas of physics. The path integral has a complex integrand when the quark chemical potential is…

High Energy Physics - Lattice · Physics 2021-11-22 Moses A. Schindler , Stella T. Schindler , Michael C. Ogilvie

We derive the analytic expression for the one-loop $SU(N_{c})$ QCD effective potential including $N_{f}$ flavor quarks which non-linearly interact with the chromo-magnetic background field and the external $U(1)_{em}$ magnetic field. After…

High Energy Physics - Phenomenology · Physics 2014-03-26 Sho Ozaki

The gluon field configurations that form the foundation of every lattice QCD calculation contain a rich diversity of emergent nonperturbative structure. Visualisations of these phenomena not only serve to explain the concept of a nontrivial…

We study the phase structure of QCD at high temperature and density by lattice QCD simulations adopting a histogram method. The quark mass dependence and the chemical potential dependence of the nature of phase transition are investigated…

High Energy Physics - Lattice · Physics 2013-07-25 Shinji Ejiri

We review the recent progress achieved in the theoretical investigation of Quantum Chromodynamics in the high temperature regime, with a focus on results achieved by lattice QCD simulations. The discussion covers the structure of the phase…

High Energy Physics - Lattice · Physics 2019-02-20 Massimo D'Elia

We present the coupling of two frameworks -- the pseudo-open boundary simulation method known as constant potential Molecular Dynamics simulations (C$\mu$MD), combined with QMMD calculations -- to describe the properties of graphene…

Materials Science · Physics 2023-04-19 Nicodemo Di Pasquale , Aaron R. Finney , Joshua Elliott , Paola Carbone , Matteo Salvalaglio

We discuss the QCD phase diagram in the strong coupling limit of lattice QCD by using a new type of mean field coming from the next-to-leading order of the large dimensional expansion. The QCD phase diagram in the strong coupling limit…

High Energy Physics - Lattice · Physics 2015-03-19 Akira Ohnishi , Kohtaroh Miura , Takashi Z. Nakano

A discussion is made of the strategy to check dual superconductivity of the vacuum as a mechanism of colour confinement. Recent evidence from Lattice is reviewed.

High Energy Physics - Theory · Physics 2007-05-23 A. Di Giacomo

We study, by numerical simulations on a lattice, the behaviour of the gauge-invariant two-point correlation functions of the gauge field strengths in the QCD vacuum with dynamical fermions.

High Energy Physics - Lattice · Physics 2009-10-30 Massimo D'Elia , Adriano Di Giacomo , Enrico Meggiolaro

We consider a $D4-D8-\bar D8$ brane construction which gives rise to a large N QCD at sufficiently small energies. Using the gravity dual of this system, we study chiral phase transition at finite chemical potential and temperature and find…

High Energy Physics - Theory · Physics 2008-11-26 Andrei Parnachev , David A. Sahakyan

In this talk we report on our study of two-colour lattice QCD with N_f=4 staggered fermion degrees of freedom with equal electric charge q in a homogeneous magnetic field B at non-zero temperature T. We find indications for a non-monotonic…

High Energy Physics - Lattice · Physics 2014-02-04 M. Muller-Preussker , B. Petersson , A. Schreiber , E. -M. Ilgenfritz , M. Kalinowski

The effect of an external (electro)magnetic field on the finite temperature transition of QCD is studied. We generate configurations at various values of the quantized magnetic flux with $N_f=2+1$ flavors of stout smeared staggered quarks,…

High Energy Physics - Lattice · Physics 2012-02-29 G. S. Bali , F. Bruckmann , G. Endrodi , Z. Fodor , S. D. Katz , S. Krieg , A. Schafer , K. K. Szabo

We discuss recent results and future prospects regarding the investigation, by lattice simulations, of the non-perturbative properties of QCD and of its phase diagram in presence of magnetic or chromomagnetic background fields. After a…

High Energy Physics - Lattice · Physics 2015-06-11 Massimo D'Elia