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π-electroproduction on hydrogen near threshold at four-momentum transfers of 0.2, 0.4 and 0.6 GeV |
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| Authors: | P Brauel F -W Büsser Th Canzler D Cords W R Dix R Felst G Grindhammer W -D Kollmann H Krehbiel J Meyer G Weber |
| Institution: | a Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany b II. Institut für Experimental physik der Universität Hamburg, Germany |
| Abstract: | The reaction e + p → e + π0 + p was measured near the one pion threshold, detecting the final electron and proton in coincidence for values of q2 = 0.2, 0.4 and 0.6 GeV2. The slope of the cross section at threshold is determined. The data are compared with those of the e + p → e + π+ + n reaction, measured simultaneously, and with the results of pseudovector Born approximation and with dispersion theoretical calculations. |
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