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Showing 1 to 7 of 7 for “"pion scattering"”.
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A quantum field theory for the interaction of pions and rhos
… the charged rho vector mesons and the neutral pion meson. This entailed using the larger SU(2) gauge group. The masses for the vector mesons were generated via spontaneous symmetry breaking using the Higgs mechanism. The Lagrangian was then quantized and gauge fixed using the generalized class …
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Direct pion-nucleus interactions in the resonance region
The direct reactions of pions with nuclei in the energy region of the πN(3,3) resonance are examined in the eikonal formalism. In particular, the angular and energy dependence of the elastic scattering of πsup(+-) from the calcium isotopes 40Ca, 48Ca is studied, using a detailed phenomenological …
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ELASTIC SCATTERING AT RELATIVISTIC ENERGIES OF ALPHA PARTICLES AND PIONS BY NUCLEI USING AN OPTICAL POTENTIAL
A computer code was written to calculate elastic scattering cross sections using the Klein-Gordon equation. The reason for writing this code is because existing codes do not include relativistic kinematics and therefore are only valid for lower energies. This code was used to analyze alpha particle …
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Soft diffractive high energy scattering and form factors in nonperturbative QCD
… a functional integral approach we derive the scattering amplitudes, which are governed by expectation values of light-like Wegner-Wilson loops and lines, which then are then evaluated in the model of the stochastic vacuum. We describe mesons in a simple quark-antiquark picture, for baryons we …
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Linear Sigma Models in QCD and S3 Symmetry for Neutrinos
… It is shown that the tree amplitude for ππ scattering in the minimal linear sigma model has an exact expression which induces an infinite geometric series in which the pattern for both the I = 0 and I = 2 s-wave scattering lengths to orders $p^2$, $p^4$ and $p^6$ seems to agree with chiral …
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Experimental study of the reaction He3 ([v], [pi+])H3 up to 260 MeV
… ()f seven plastic scintillators for the pions and four tl'ansmiss10ntype semiconduc1;or detectors for the tritons. Pulses froln the 'semiconductor detectors and the scintillators were displayed on a dual beam oscilloscope -.nd photographed. E and dE/dx relations were used for 'particle …
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Rigorous Bounds on Strong Interaction Coupling Constants
… problem of deriving bounds on strong interaction scattering amplitudes from the results of axiomatic field theory. The bounds on the π-π scattering amplitude at points within its analyticity domain which have been obtained by Łukaszuk and Martin are especially interesting because they contain no …