Photoproduction of ETA mesons from hydrogen at photon energies between 0.8 and 1.45 GeV
Data(s) |
1968
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Resumo |
<p>We measured the differential cross section of the process γp → pƞ at the 1.5 GeV Caltech electron synchrotron, at photon energies from 0.8 to 1.45 GeV, at various angles between 45° and 100° in the center of mass. A counter-spark chamber array was used to determine the kinematics of all particles in the final state of the partial mode γp → pƞ (ƞ → 2γ). Analysis of 40,000 pictures yielded 6,000 events above a background which varied with energy from 5% to 30% of foreground. The cross section shows an energy dependence confirming earlier results up to 1000 MeV, but with improved statistics; it then remains roughly constant (at 50° C.M.), to 1.45 GeV. The data show a small angular variation, within the limited range covered, at energies between 1000 and 1100 MeV.</p> |
Formato |
application/pdf |
Identificador |
http://thesis.library.caltech.edu/9367/1/Rochester_ls_1968.pdf Rochester, Leon S. (1968) Photoproduction of ETA mesons from hydrogen at photon energies between 0.8 and 1.45 GeV. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:01112016-113552095 <http://resolver.caltech.edu/CaltechTHESIS:01112016-113552095> |
Relação |
http://resolver.caltech.edu/CaltechTHESIS:01112016-113552095 http://thesis.library.caltech.edu/9367/ |
Tipo |
Thesis NonPeerReviewed |