Decay angular distributions in diffractive one-pion production at ISR energy

New experimental results are reported on decay angular distributions in diffractive dissociation of protons into (n pi /sup +/) in proton- proton collisions at a centre-of-mass energy of square root s=45 GeV. There is strong evidence for two distinct components of diffraction dissociation which have...

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Detalles Bibliográficos
Autores principales: De Kerret, H, Nagy, E, Regler, Meinhard, Schmidt-Parzefall, W, Schubert, Klaus R, Winter, Klaus, Brandt, A, Dibon, Heinz, Flügge, G, Niebergall, F, Schumacher, P E, Aubert, Jean-Jacques, Broll, C, Coignet, G, Favier, Jean, Massonnet, Louis, Vivargent, M, Bartl, Walter, Eichinger, H, Gottfried, Christian, Neuhofer, Günther
Lenguaje:eng
Publicado: 1976
Materias:
Particle Physics
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(76)90402-0
http://cds.cern.ch/record/699777
Descripción
Sumario:New experimental results are reported on decay angular distributions in diffractive dissociation of protons into (n pi /sup +/) in proton- proton collisions at a centre-of-mass energy of square root s=45 GeV. There is strong evidence for two distinct components of diffraction dissociation which have different decay angular distributions in the Gottfried-Jackson frame; the resonant and the non-resonant component with (n pi /sup +/) invariant mass in the interval 1.6<m<1.7 GeV are separated by their different t dependence. Strong violation of s- channel and t-channel helicity conservation for both the resonant and the non-resonant component is found. (10 refs).

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