Results 71 to 80 of about 594,324 (359)

QCD chiral phase transition from noninteger numbers of flavors [PDF]

open access: yesPhysical Review D, 2017
Attempts to extract the order of the chiral transition of QCD at zero chemical potential, with two dynamical flavors of massless quarks, from simulations with progressively decreasing pion mass have remained inconclusive because of their increasing ...
F. Cuteri, O. Philipsen, A. Sciarra
semanticscholar   +1 more source

Density fluctuations and chiral phase transition [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2008
Based on an effective QCD Lagrangian we discuss the properties of charge density fluctuations in the vicinity of chiral phase transition. We explore thermodynamics in the presence of spinodal phase separation. We show that appearance of spinodal decomposition in a non-equilibrium first order phase transition results in divergence of the charge density ...
Redlich, K., Friman, B., Sasaki, C.
openaire   +2 more sources

Microscopic origin of criticality at macroscale in QCD chiral phase transition [PDF]

open access: yesEPJ Web of Conferences
We reveal that the criticality of the chiral phase transition in QCD at the macroscale arises from the microscopic energy levels of its fundamental constituents, the quarks. We establish a novel relation between cumulants of the chiral order parameter (i.
Ding Heng-Tong   +3 more
doaj   +1 more source

Chiral phase transition at finite chemical potential in 2 +1 -flavor soft-wall anti-de Sitter space QCD [PDF]

open access: yes, 2017
The phase transition from hadronic matter to chirally-symmetric quark-gluon plasma is expected to be a rapid crossover at zero quark chemical potential ($\mu$), becoming first order at some finite value of $\mu$, indicating the presence of a critical ...
Sean P. Bartz, T. Jacobson
semanticscholar   +1 more source

On the strength of the UA(1) anomaly at the chiral phase transition in Nf = 2 QCD [PDF]

open access: yesJournal of High Energy Physics, 2016
We study the thermal transition of QCD with two degenerate light flavours by lattice simulations using O(a)-improved Wilson quarks. Temperature scans are performed at a fixed value of Nt = (aT)−1 = 16, where a is the lattice spacing and T the temperature,
B. Brandt   +5 more
semanticscholar   +1 more source

Chiral phase transition and baryon number conservation [PDF]

open access: yesPhysical Review D, 1998
17 pages (RevTeX), 8 PS-figures; accepted for publication in Phys.Rev ...
openaire   +2 more sources

Transport coefficients near chiral phase transition [PDF]

open access: yesNuclear Physics A, 2010
We analyze the transport properties of relativistic fluid composed of constituent quarks at finite temperature and density. We focus on the shear and bulk viscosities and study their behavior near chiral phase transition. We model the constituent quark interactions through the Nambu--Jona Lasinio Lagrangian.
Sasaki, C., Redlich, K.
openaire   +2 more sources

Reversible Single-Crystal-to-Single-Crystal Phase Transition of Chiral Salicylidenephenylethylamine

open access: yesCrystals, 2016
The chiral crystal of enantiomeric (S)-N-3,5-di-tert-butylsalicylidene-1-phenylethylamine in the enol form [enol-(S)-1] undergoes a reversible single-crystal-to-single-crystal (SCSC) phase transition at Tc ≈ 3 °C from the room temperature α-form in ...
Akifumi Takanabe   +6 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan   +4 more
wiley   +1 more source

QCD θ-vacua from the chiral limit to the quenched limit

open access: yesNuclear Physics B, 2014
We investigate the dependence of the QCD vacuum structure on the θ-angle and quark mass, using the Di-Vecchia–Veneziano model. Although the Di-Vecchia–Veneziano model is a chiral effective model, it contains the topological properties of the pure Yang ...
Kazuya Mameda
doaj   +1 more source

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