Results 31 to 40 of about 220,545 (228)
Gluon parton distribution of the pion from lattice QCD
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]
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]
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
AbstractDie experimentelle Situation — Theoretische Grundlagen — Schranken für Streulängen.
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Pion Superfluidity and Meson Properties at Finite Isospin Density
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
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
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
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]
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
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