Results 91 to 100 of about 220,545 (228)

Aspects of Meson Condensation

open access: yesEPJ Web of Conferences, 2016
In this work pion and kaon condensation in the framework of chiral perturbation theory is studied. I consider a system at vanishing temperature with nonzero isospin chemical potential and strangeness chemical potential; meson masses and mixing in the ...
Mammarella Andrea
doaj   +1 more source

The width of the Δ-resonance at two loop order in baryon chiral perturbation theory

open access: yesPhysics Letters B, 2016
We calculate the width of the delta resonance at leading two-loop order in baryon chiral perturbation theory. This gives a correlation between the leading pion–nucleon–delta and pion–delta couplings, which is relevant for the analysis of pion–nucleon ...
Jambul Gegelia   +3 more
doaj  

The Effect of the Pion-Pion Interaction on the Pion-Nucleon Scattering [PDF]

open access: yesProgress of Theoretical Physics, 1961
It is suggested that the low-energy pion-nucleon p-wave shifts will be well understood by taking account of the effects of not only the pion-pion P-wave interaction but also the pion-pion S-wave interaction into the equations for the p-wave scattering amplitudes derived by Chew, Goldberger, Low, and Nambu.
openaire   +2 more sources

The charged and neutral pion masses revisited

open access: yesPhysics Letters B, 2019
Results from neutrino mass and oscillation experiments now set the mass of the muon neutrino to less than 2 eV/c2. This fact, together with our former measurement of the muon momentum in pion decay at rest, pμ+=(29.79200±0.00011) MeV/c, allows us to ...
M. Daum, R. Frosch, P.-R. Kettle
doaj  

Stable Multichannel Positive Pion Detector [PDF]

open access: green, 1958
W. L. Imhof   +2 more
openalex   +1 more source

High temperature Bose-Einstein condensation

open access: yesEPJ Web of Conferences, 2016
The indications of a possible pion condensation at the LHC are summarized. The condensation is predicted by the non-equilibrium hadronization model for 2.76 TeV Pb+Pb collisions at the LHC.
Begun Viktor
doaj   +1 more source

High-Energy Total Cross Sections for Positive Pions and Protons on Hydrogen [PDF]

open access: green, 1959
M. J. Longo   +4 more
openalex   +1 more source

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