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Resonance matrix elements on the lattice

open access: yesEPJ Web of Conferences, 2016
The notion of resonance matrix elements is discussed. The analogue of the Lellouch-Lüscher formula for the pion photo(electro)production amplitude in the Δ(1232) resonance region is given.
Agadjanov Andria   +3 more
doaj   +1 more source

A Picture Theory of Theory Meaning [PDF]

open access: yes, 1971
Perplexities concerning Scientific Theories persist because the usual ‘singled valued’ philosophical analyses cannot do justice to the problematic features of so complex a semantical entity. The components of theories are like law statements, and like models and hypotheses, being conceptual entities which are used in a variety of ways—not all of these ...
openaire   +2 more sources

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