Results 11 to 20 of about 220,545 (228)

On the Usefulness of Two Small-Scale In Vitro Setups in the Evaluation of Luminal Precipitation of Lipophilic Weak Bases in Early Formulation Development

open access: yesPharmaceutics, 2020
A small-scale biphasic dissolution setup and a small-scale dissolution-permeation (D-P) setup were evaluated for their usefulness in simulating the luminal precipitation of three lipophilic weak bases—dipyridamole, ketoconazole and itraconazole ...
Patrick J. O’Dwyer   +3 more
doaj   +1 more source

Evolution in Time of Radiation Defects Induced by Negative Pions and Muons in Crystals with a Diamond Structure

open access: yesCrystals, 2017
Evolution in time of radiation defects induced by negatively-charged pions and muons in crystals with diamond structures is considered. Negative pions and muons are captured by the nucleus and ionize an appropriate host atom, forming a positively-charged
Yury M. Belousov
doaj   +1 more source

Pion PDFs confronted by fixed-target charmonium production

open access: yesAAPPS Bulletin, 2023
The pion, as the Goldstone boson of the strong interaction, is the lightest QCD bound state and responsible for the long-range nucleon-nucleon interaction inside the nucleus.
Wen-Chen Chang   +5 more
doaj   +1 more source

Regge analysis of pion-pion (and pion-kaon) scattering for energy s^{1/2}>1.4 GeV [PDF]

open access: yes, 2003
We perform a detailed Regge analysis of NN, pion-N and pion-pion scattering. From it, we find expressions that represent the pion-pion scattering amplitudes with an accuracy of a few percent, for exchange of isospin zero, and $\sim15%$ for exchange of ...
Pelaez, J. R., Yndurain, F. J.
core   +3 more sources

Pion light-cone wave function and pion distribution amplitude in the Nambu-Jona-Lasinio model [PDF]

open access: yes, 2002
We compute the pion light-cone wave function and the pion quark distribution amplitude in the Nambu-Jona-Lasinio model. We use the Pauli-Villars regularization method and as a result the distribution amplitude satisfies proper normalization and crossing ...
A. Blin   +53 more
core   +2 more sources

Transverse pion structure beyond leading twist in constituent models [PDF]

open access: yes, 2016
The understanding of the pion structure as described in terms of transverse-momentum dependent parton distribution functions (TMDs) is of importance for the interpretation of currently ongoing Drell-Yan experiments with pion beams.
Lorcé, C., Pasquini, B., Schweitzer, P.
core   +3 more sources

Pion-Pion Interactions

open access: yesReviews of Modern Physics, 1961
Pion-pion interactions in pi -N processes are discussed, using a pi / sup +/ and pi /sup -/ beam at 1.03 Bev/c. (L.T.W.)
Anderson, Jerry A.   +4 more
openaire   +3 more sources

Pion Production by Pions

open access: yesPhysical Review, 1960
A liquid hydrogen target was bombarded by negative pions of energies 260. 317, 371, and 427 Mev. Positive pions from the reaction pi /sup -/ + p yields pi /sup +/ + pi /sup -/ + n were dete cted by the use of a counter telescope, that selected the pi /sup +/ by its characteristic pi - mu decay.
Perkins, Walton A.   +3 more
openaire   +3 more sources

Pion Production by Pions

open access: yesPhysical Review Letters, 1959
In order to study the direct interaction of the incident pion with a virtual pion in the meson cloud surrounding a nucleon, the reaction pi + p yields pi /sup +/ + pi /sup -/ + n was investigated in the energy range from 260 to 430 Mev. Negative pion beams impinged on a 4-in.thick liquid hydrogen target.
Perkins, Walton A.   +4 more
openaire   +3 more sources

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

open access: yesProgress of Theoretical Physics, 1960
Pion-pion interaction is analyzed by using the dispersion relation for pion-nucleon scattering obtained by keeping the momentum transfer between an initial pion and a final nucleon constant. In order to take into account the singularity of two-pion threshold in the dispersion relation, the dispersion relation may be regarded as an integral equation for
Kin-ichi Ishida   +2 more
openaire   +2 more sources

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