Results 31 to 40 of about 220,545 (228)

Gluon parton distribution of the pion from lattice QCD

open access: yesPhysics Letters B, 2021
We present the first determination of the x-dependent pion gluon distribution from lattice QCD using the pseudo-PDF approach. We use lattice ensembles with 2+1+1 flavors of highly improved staggered quarks (HISQ), generated by MILC Collaboration, at two ...
Zhouyou Fan, Huey-Wen Lin
doaj  

Determination of the pion-nucleon coupling constant and scattering lengths [PDF]

open access: yes, 2000
We critically evaluate the isovector GMO sum rule for forward pion-nucleon scattering using the recent precision measurements of negatively charged pion-proton and pion-deuteron scattering lengths from pionic atoms.
A. A. Carter   +80 more
core   +4 more sources

Pion Production in Pion Nucleon Scattering and Pion-Pion Interaction [PDF]

open access: yesProgress of Theoretical Physics, 1962
The reaction pi + N yields 2 pi + N is discussed. The production process is assumed to take place mainly via pi - pi interactions, which are studied using an extrapolation formula (G. F. Chew and F. E. Low, Phys. Rev., 113: 1640 (1959)). A program giving a consistent explanation to the process at 0.3 to 1.5 Bev is presented.
openaire   +2 more sources

Pion‐Pion‐Streuung [PDF]

open access: yesPhysikalische Blätter, 1975
AbstractDie experimentelle Situation — Theoretische Grundlagen — Schranken für Streulängen.
openaire   +2 more sources

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

Pion in a box

open access: yesPhysics Letters B, 2010
The residual mass of the pion in a finite spatial box at vanishing quark masses, the mass gap, is computed with two flavors of dynamical clover fermions. The result is compared with predictions of chiral perturbation theory in the delta regime.
Bietenholz, W.   +7 more
openaire   +6 more sources

THE PION MODEL [PDF]

open access: yesInternational Journal of Modern Physics E, 2011
We revisit the problem of a mechanism that generates the mass spectrum of elementary particles. This has vexed physicists for several decades now. In this connection, we deduce a formula that gives the masses of all known elementary particles, even though other quantum numbers are suppressed.
Burra G. Sidharth, Burra G. Sidharth
openaire   +3 more sources

Search for Antineutrino Charged Current Coherent Pion Production at SciBooNE

open access: yes, 2009
The SciBooNE experiment (Fermilab) recently published results of a search for charged current coherent pion production in neutrino mode: muon neutrinos scattering on carbon.
Federico Sanchez   +3 more
core   +1 more source

The pion charge radius from charged pion electroproduction [PDF]

open access: yes, 2000
We analyze a low-energy theorem of threshold pion electroproduction which allows one to determine the charge radius of the pion. We show that at the same order where the radius appears, pion loops induce a correction to the momentum dependence of the ...
A. Liesenfeld   +13 more
core   +2 more sources

Food effect risk assessment in preformulation stage using material sparing µFLUX methodology

open access: yesADMET and DMPK, 2022
The intake of food and meal type can strongly impact the bioavailability of orally administered drugs and can consequently impact drug efficacy and safety.
Corinne Jankovsky   +2 more
doaj   +1 more source

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