Geodesic
Cluster propagator in quantum field theory
Teoretičeskaâ i matematičeskaâ fizika, Tome 56 (1983) no. 3, pp. 460-466 
O. A. Mogilevskii. Cluster propagator in quantum field theory. Teoretičeskaâ i matematičeskaâ fizika, Tome 56 (1983) no. 3, pp. 460-466. http://geodesic.mathdoc.fr/item/TMF_1983_56_3_a12/
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     author = {O. A. Mogilevskii},
     title = {Cluster propagator in quantum field theory},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {460--466},
     year = {1983},
     volume = {56},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1983_56_3_a12/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The possibility of describing multiparticle production in a nonlocal quantum field theory is discussed. Interaction of a cluster field with a field of scalar particles is introduced. Summation of a certain class of Feynman diagrams leads to a cluster propagator with decreasing imaginary part containing information about the hadron mass spectrum.

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