The ϱ− radiative decay width has been measured by studying the production of ϱ− via the Primakoff effect by 200 GeV incident π− on Cu and Pb targets. This width was obtained by fitting the measured dσ/dt for ϱ production with the theoretical coherent differential cross section including both the electromagnetic and strong contributions. The measured radiative width value is 81 ± 4 ± 4 keV: it is consistent with the ratio View the MathML source as expected from the vector dominance and the quark model.

The ϱ radiative decay width: A measurement at 200 GeV / L. Capraro, Ph. Lévy, M. Querrou, B. Van Hecke, M. Verbeken, E. Enorini, F.L. Fabbri, P. Laurelli, A. Zallo, G. Bellini, S. Bonetti, A. Fincato, M. Leopold, D. Menasce, E. Meroni, L. Moroni, D. Pedrini, L. Perasso, F. Ragusa, S. Sala, et al.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - ELETTRONICO. - 288:(1987), pp. 659-680. [10.1016/0550-3213(87)90233-1]

The ϱ radiative decay width: A measurement at 200 GeV

FOCARDI, ETTORE;
1987

Abstract

The ϱ− radiative decay width has been measured by studying the production of ϱ− via the Primakoff effect by 200 GeV incident π− on Cu and Pb targets. This width was obtained by fitting the measured dσ/dt for ϱ production with the theoretical coherent differential cross section including both the electromagnetic and strong contributions. The measured radiative width value is 81 ± 4 ± 4 keV: it is consistent with the ratio View the MathML source as expected from the vector dominance and the quark model.
1987
288
659
680
L. Capraro;Ph. Lévy;M. Querrou;B. Van Hecke;M. Verbeken;E. Enorini;F.L. Fabbri;P. Laurelli;A. Zallo;G. Bellini;S. Bonetti;A. Fincato;M. L...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/626988
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