Results 131 to 140 of about 943,876 (253)

Double parton correlations in mesons within AdS/QCD soft-wall models: a first comparison with lattice data

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Double parton distribution functions (dPDFs), entering the double parton scattering (DPS) cross section, are unknown fundamental quantities encoding new interesting properties of hadrons. Here, the pion dPDFs are investigated within different holographic
Matteo Rinaldi
doaj   +1 more source

Lattice QCD and heavy ion collisions: a review of recent progress [PDF]

open access: yesReports on progress in physics. Physical Society, 2018
In the last few years, numerical simulations of Quantum chromodynamics on the lattice have reached a new level of accuracy. A wide range of thermodynamic quantities is now available in the continuum limit and for physical quark masses.
C. Ratti
semanticscholar   +1 more source

Studies of Parity Violation in Atoms

open access: yesAnnalen der Physik, Volume 537, Issue 2, February 2025.
This article provides an overview of atomic parity violation (APV), emphasizing its role in testing the Standard Model and probing new physics. The review discusses manifestations of APV, including nuclear‐spin‐independent and dependent effects, and explores isotopic comparison as a method for precision measurements.
Stefanos Nanos   +2 more
wiley   +1 more source

Lattice QCD and string theory [PDF]

open access: yesProceedings of XXIIIrd International Symposium on Lattice Field Theory — PoS(LAT2005), 2005
Bosonic string formation in gauge theories is reviewed with particular attention to the confining flux in lattice QCD and its string theory description. Recent results on the Casimir energy of the ground state and the string excitation spectrum are analyzed in the Dirichlet string limit of large separation between static sources.
openaire   +4 more sources

B - and D -meson leptonic decay constants from four-flavor lattice QCD [PDF]

open access: yesPhysical Review D, 2017
We calculate the leptonic decay constants of heavy-light pseudoscalar mesons with charm and bottom quarks in lattice quantum chromodynamics on four-flavor QCD gauge-field configurations with dynamical $u$, $d$, $s$, and $c$ quarks. We analyze over twenty
A. Bazavov   +16 more
semanticscholar   +1 more source

Tensor Condensate Accompanied by Chiral Transition in a Strong Magnetic Field

open access: yesAdvances in High Energy Physics, Volume 2025, Issue 1, 2025.
We investigate tensor condensates and chiral condensates in the (2 + 1)‐flavor Nambu–Jona–Lasinio model at finite temperature and density in the presence of a strong magnetic field. The emergence of the tensor condensate is attributed to the four‐fermion interaction.
Yuan-Hao Niu   +2 more
wiley   +1 more source

Berry Phase in Lattice QCD [PDF]

open access: yesPhysical Review Letters, 2016
We propose the lattice QCD calculation of the Berry phase which is defined by the ground state of a single fermion. We perform the ground-state projection of a single-fermion propagator, construct the Berry link variable on a momentum-space lattice, and calculate the Berry phase. As the first application, the first Chern number of the (2+1)-dimensional
openaire   +3 more sources

ΛN and Ξ N Interactions Studied with Lattice QCD

open access: yesEPJ Web of Conferences, 2010
We present our recent studies of Lambda-Nucleon (ΛN) as well as Cascade-Nucleon (ΞN) interactions by using lattice QCD. The equal-time Bethe-Salpeter (BS) amplitude of the lowest energy scattering state of baryon number B = 2 system (proton-Λ and ...
Nemura H.
doaj   +1 more source

Lepton anomalous magnetic moments in Lattice QCD+QED [PDF]

open access: yes, 2019
We present a lattice calculation of the Hadronic Vacuum Polarization (HVP) contribution to the anomalous magnetic moments of the electron, $a_e^{\rm HVP}$, the muon, $a_\mu^{\rm HVP}$, and the tau, $a_\tau^{\rm HVP}$, including both the isospin-symmetric
D. Giusti, S. Simula
semanticscholar   +1 more source

Lattice QCD and the anomalous magnetic moment of the muon [PDF]

open access: yesProgress in Particle and Nuclear Physics, 2018
The anomalous magnetic moment of the muon, a_mu, has been measured with an overall precision of 540 ppb by the E821 experiment at BNL. Since the publication of this result in 2004 there has been a persistent tension of 3.5 standard deviations with the ...
H. Meyer, H. Wittig
semanticscholar   +1 more source

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