Results on the production cross sections π−p → neutrals and π− p→ χ↳2γ0n at 3.8, 6, 8 and 12 GeV/c期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Results on the production cross sections π−p → neutrals and π− p→ χ↳2γ0n at 3.8, 6, 8 and 12 GeV/c

Authors:	WD Apel J Ausländer H Müller G Sigurdsson HM Staudenmaier E Bertolucci I Mannelli G Pierazzini P Rehak A Scribano F Sergiampietri ML Vincelli

Institution:	Institut für Experimentelle Kernphysik der Universität und Kernforschungszentrum, Karlsruhe, Germany;Instituto di Fisica dell''Università di Pisa and I.N.F.N., Sezione di Pisa, Italy

Abstract:	The ratio between the cross sections for the reactions $π^{?} p→ χ ?_{2γ}^{0} n$ and π^?p → η_→2γ n has been measured to be (2.4 ± 0.9) × 10^?2, (2.1 ± 0.6) × 10^?2 and (2.8 ± 1.3) × 10^?2 at 3.8,6,8 and 12 GeV/c incident momentum respectively.At the same momenta the cross section for π^t- p → neutrals is (1.48 ± 0.09) mb, (0.86 ± 0.05) mb, (0.64 ± 0.04) mb and (0.42±0.03) mb.

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