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arxiv: hep-ex/0209004 · v1 · submitted 2002-09-03 · ✦ hep-ex

Rho⁰ meson production in the pp ->pppi+pi- reaction at 3.67 GeV/c

F. Balestra , Y. Bedfer , R. Bertini , L.C. Bland , A. Brenschede , F. Brochard , M.P. Bussa , Seonho Choi
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M.L. Colanton R. Dressler M. Dzemidzic J.-Cl. Faivre A. Ferrero L. Ferrero J. Foryciarz I. Fr\"ohlich V. Frolov R. Garfagnini A. Grasso S. Heinz W.W. Jacobs W. K\"uhn A. Maggiora M. Maggiora A. Manara D. Panzieri H.-W. Pfaff G. Piragino A. Popov J. Ritman P. Salabura V. Tchalyshev F. Tosello S.E. Vigdor G. Zosi (DISTO Collaboration)
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classification ✦ hep-ex
keywords crossmesonproductionsectionsdifferentialmeasuredobservedreaction
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Total and differential cross sections for the exclusive reaction pp->pp rho^0 observed via the pi+pi- decay channel have been measured at beam momentum=3.67 GeV/c. The observed total meson production cross section is determined to be 23.4 +- 0.8 +-8 microb and is significantly lower than typical cross sections used in model calculations for heavy ion collisions. The differential cross sections measured indicate a strong anisotropy cos^2(theta^{CM}) in the rho^0 meson production.

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