Results 111 to 120 of about 274,150 (265)

Pion Superfluidity and Meson Properties at Finite Isospin Density

open access: yes, 2009
We investigate pion superfluidity and its effect on meson properties and equation of state at finite temperature and isospin and baryon densities in the frame of standard flavor SU(2) NJL model.
A. B. Migdal   +6 more
core   +1 more source

Impact of unidentified light charged hadron data on the determination of pion fragmentation functions [PDF]

open access: yes, 2019
In this paper a new comprehensive analysis of parton-to-pion fragmentation functions (FFs) is performed for the first time by including all experimental data sets on single inclusive pion as well as unidentified light charged hadron production in ...
Goharipour, Muhammad   +2 more
core   +2 more sources

Gravitational wave from dark sector with dark pion [PDF]

open access: yes, 2017
In this work, we investigate the spectra of gravitational waves produced by chiral symmetry breaking in dark quantum chromodynamics (dQCD) sector. The dark pion (π) can be a dark matter candidate as weakly interacting massive particle (WIMP) or strongly ...
K. Tsumura, M. Yamada, Yuya Yamaguchi
semanticscholar   +1 more source

Pion transverse-momentum spectrum and elliptic anisotropy of partially coherent source

open access: yesPhysics Letters B, 2018
In this letter, we study the pion momentum distribution of a coherent source and investigate the influences of coherent emission on the pion transverse-momentum (pT) spectrum and elliptic anisotropy.
Peng Ru, Ghulam Bary, Wei-Ning Zhang
doaj   +1 more source

Nonequilibrium Pion Distribution within the Zubarev Approach

open access: yesParticles, 2020
We discuss how the non-equilibrium process of pion production within the Zubarev approach of the non-equilibrium statistical operator leads to a theoretical foundation for the appearance of a non-equilibrium pion chemical potential for the pion ...
David Blaschke   +3 more
doaj   +1 more source

Flavour Breaking Effects of Wilson twisted mass fermions [PDF]

open access: yes, 2005
We study the flavour breaking effects appearing in the Wilson twisted mass formulation of lattice QCD. In this quenched study, we focus on the mass splitting between the neutral and the charged pion, determining the neutral pion mass with a stochastic ...
Jansen, K.   +9 more
core   +2 more sources

Pion-nucleon scattering in covariant baryon chiral perturbation theory with explicit Delta resonances [PDF]

open access: yes, 2016
A bstractWe present the results of a third order calculation of the pion-nucleon scattering amplitude in a chiral effective field theory with pions, nucleons and delta resonances as explicit degrees of freedom.
D. Yao   +8 more
semanticscholar   +1 more source

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

Role of isospin dependent mean field in pion production in heavy ion reactions [PDF]

open access: yes, 1997
The importance of a isospin dependent nuclear mean field (IDMF) in regard to the pion production mechanism is studied for the reaction $Au+Au$ at 1 GeV/nucleon using the Quantum Molecular Dynamics (QMD) model.
Amand Faessler   +34 more
core   +2 more sources

How Do Humans Process Audiovisual Cues for Task‐Switching While Walking? An EEG/ERP Study

open access: yesPsychophysiology, Volume 62, Issue 8, August 2025.
ABSTRACT Contemporary work environments require humans to process audiovisual information displays during active locomotion. The attentional demands associated with using devices such as in‐ear headphones and head‐mounted displays may be significantly influenced by varying locomotor demands, yet this relationship remains poorly understood.
Julian Elias Reiser   +4 more
wiley   +1 more source

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