Results 31 to 40 of about 34,010 (203)

Quark flavor phenomenology of the QCD axion [PDF]

open access: yes, 2020
Axion models with generation-dependent Peccei-Quinn charges can lead to flavor-changing neutral currents, thus motivating QCD axion searches at precision flavor experiments.
J. Camalich   +4 more
semanticscholar   +1 more source

New Results in Light-Front Phenomenology [PDF]

open access: yes, 2004
The light-front quantization of gauge theories such as QCD in light-cone gauge provides a frame-independent wavefunction representation of relativistic bound states, simple forms for current matrix elements, explicit unitarity, and a trivial vacuum.
Available From Stanley   +2 more
core   +3 more sources

Comparisons of Adaptations in Grounded Theory and Phenomenology: Selecting the Specific Qualitative Research Methodology

open access: yesInternational Journal of Qualitative Methods, 2021
The most widely used qualitative research methodologies are grounded theory and phenomenology. Both methodologies have expanded over time to several adaptations aligning with different paradigms, complex philosophical assumptions, and varying ...
Ivan Aldrich Pastrana Urcia
semanticscholar   +1 more source

Ising-QCD phenomenology close to the critical point [PDF]

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2018
We employ the recently introduced Ising-QCD partition function (N.~G. Antoniou {\it et al.}, Phys. Rev. D 97, 034015 (2018)) to explore in detail the behaviour of the moments of the baryon-number, within the critical region around the critical endpoint ...
N. Antoniou, F. Diakonos
semanticscholar   +1 more source

Gravitational transition form factors of N → ∆ via QCD light-cone sum rules

open access: yesJournal of High Energy Physics, 2023
We present the first direct calculation on the gravitational form factors (GFFs) of the N → ∆ transition using an analytic method, the QCD light-cone sum rules. The matrix element of the quark part of the energy momentum tensor current sandwiched between
U. Özdem, K. Azizi
doaj   +1 more source

A possible subthreshold pole in S 11 channel from πN Roy-Steiner equation analyses

open access: yesJournal of High Energy Physics, 2022
The hyperbolic version of Roy-Steiner equation describing low energy πN scatterings, with larger analyticity domain in the complex s plane is solved. The numerical results on phase shifts of low partial waves are in agreement with that of Hoferichter et ...
Xiong-Hui Cao, Qu-Zhi Li, Han-Qing Zheng
doaj   +1 more source

A Gaussian Sum-Rules Analysis of Scalar Glueballs [PDF]

open access: yes, 2001
Although marginally more complicated than the traditional Laplace sum-rules, Gaussian sum-rules have the advantage of being able to probe excited and ground states with similar sensitivity.
't Hooft   +50 more
core   +2 more sources

Quantum kinetic theory for spin transport of quarks with background chromo-electromagnetic fields

open access: yesJournal of High Energy Physics, 2022
We derive the quantum kinetic equations for massive and massless quarks coupled with the background chromo-electromagnetic fields from the Wigner-function approach with the n expansion and effective power-counting scheme.
Di-Lun Yang
doaj   +1 more source

Anisotropic flow and the valence quark skeleton of hadrons

open access: yesJournal of High Energy Physics, 2023
We study transverse momentum anisotropies, in particular, the elliptic flow v 2 due to the interference effect sourced by valence quarks in high-energy hadron-hadron collisions. Our main formula is derived as the high-energy (eikonal) limit of the impact-
Meijian Li   +3 more
doaj   +1 more source

Hadronic vacuum polarization and the MUonE proposal

open access: yesJournal of High Energy Physics, 2022
The MUonE proposal at the CERN SPS consists in extracting the value of the hadronic vacuum polarization self-energy function (HVP) from its contribution to the differential cross-section of elastic muon-electron scattering.
David Greynat, Eduardo de Rafael
doaj   +1 more source

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