Abstract
Spectra of positive pions from the processn+p→π ++n+n have been measured for incident neutron energies from 470 MeV to 590 MeV and for laboratory angles up to 20°. The rather broad pion energy spectra and the pronounced anisotropy of the differential cross sections, both indicate an appreciable non-resonant, isoscalar (T=0) contribution to the pion production.
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Auer, I.P., Colton, E., Halpern, H., Hill, D., Spinka, H., Theodosiou, G., Underwood, D., Watanabe, Y., Yokosawa, A.: Phys. Rev. Lett.41, 354 (1978)
Biegert, E.K., Buchanan, J.A., Clement, J.M., Dragoset, W.H., Felder, R.D., Hoftiezer, J.H., Hogstrom, K.R., Hudomalj-Gabitzsch, J., Lesikar, J.D., Madigan, W.P., Mutchler, G.S., Phillips, G.C., Roberts, J.B., Williams, T.M., Abe, K., Fernow, R.C., Mulera, T.A., Bart, S., Mayes, B.W., Pinsky, L.: Phys. Lett.73B, 235 (1978)
Hidaka, K., Yokosawa, A.: Surv. High Energ. Phys.1, 141 (1980)
Yokosawa, A.: Phys. Rep.64, 47 (1980)
Mandelstam, S.: Proc. R. Soc. London A244, 491 (1958)
Handler, R.: Phys. Rev. B138, 1230 (1965)
Dzhelepov, V.P., Kiselev, V.S., Oganesyan, K.O., Flyagin, V.B.: JETP23, 993 (1966)
Kazarinov, Y.M., Simonov, Y.N.: Sov. J. Nucl. Phys.4, 100 (1967)
Watson, K.M.: Phys. Rev.88, 1163 (1952);
Gell-Mann, M., Watson, K.M.: Ann. Rev. Nucl. Sci.4, 219 (1954)
Rosenfeld, A.H.: Phys. Rev.96, 139 (1954)
Schmitt, L.: (private communication)
Spuller, J., Measday, D.F.: Phys. Rev. D12, 3550 (1975)
SIN Users Handbook 1973, N.A.3
Fischer, Th., Hagedorn, W., Hammel, G., Hürster, W., Kern, K., Kettle, P.-R., Kleinschmidt, M., Lehmann, L., Rössle, E., Schmitt, H.: Nucl. Instrum. Methods156, 199 (1978)
Fischer, Th., Hammel, G., Hürster, W., Kern, K., Kettle, P., Kleinschmidt, M., Lehmann, L., Moser, K., Rössle, E., Schmitt, H., Sheppard, D.M.: SIN-Jahresbericht 1977
Guzhavin, V.M., Kliger, G.K., Kolganov, V.Z., Lebedev, A.V., Marish, K.S., Prokoshkin, Y.D., Smolyankin, V.T., Sokolov, A.P., Soroko, L.M., Ts'ui Wa-Ch'uang: JETP19, 847 (1964)
König, A., Kroll, P.: Preprint WUB 80-17, Wuppertal (1980)
Thomas, W.R.: Thesis, University of New Mexico (1977)
Dunaitsev, A.F., Prokoshkin, Y.D.: JETP36, 1179 (1959)
Cence, R.J., Lind, D.L., Mead, G.D., Moyer, B.J., Phys. Rev.131, 2713 (1963)
Hoshizaki, N.: preprint NEAP-21, Kyoto University (1979)
Kamac, T., Fujita, T.: Phys. Rev. Lett.38, 471 (1977)
Spinka, H.: AIP Conference Proceedings51, 382 (1978)
Grein, W., König, A., Kroll, P.: Preprint WUB 80-13, Wuppertal (1980)
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Work supported by the German Bundesministerium für Forschung und Technologie
It is a pleasure to thank Prof. Blaser and his colleagues for the excellent working conditions at SIN. We acknowledge the good cooperation with the staff of SIN during the installation period of the neutron beam facility. We thank W. Hagedorn, P.-R. Kettle and J. Urban for their help during different stages of the experiment.
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Kleinschmidt, M., Fischer, T., Hammel, G. et al. Production of positive pions by neutron-proton collisions. Z Physik A 298, 253–266 (1980). https://doi.org/10.1007/BF01425155
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DOI: https://doi.org/10.1007/BF01425155