Study of the isobar configurations in the 12C and 16O ground states

被引：2
|
作者：
Glavanakov I.V. [1 ]
Grabmayr P. [2 ]
Krechetov Yu.F. [1 ]
Tabachenko A.N. [1 ]
机构：
[1] Research Institute of Nuclear Physics, Tomsk Polytechnic University
[2] Institute of Physics, University of Tuebingen
来源：
Bulletin of the Russian Academy of Sciences: Physics | 2010年 / 74卷 / 6期
关键词：
Pair Production; Proton Energy; Differential Yield; Positive Pion; Isobar Configuration;
D O I：
10.3103/S1062873810060043
中图分类号：
学科分类号：
摘要：
Experimental research on positive-pion photoproduction on the oxygen nucleus in the 16O(γ, π+p) reaction at high recoil momenta of the residual nuclear system was performed. The yield for the 16O(γ, π+p) reaction was analyzed using a model that takes Δ-isobar configurations in nuclei ground states into account, together with the earlier-measured yield of the12C(γ, π+p) reaction. The estimated number of isobars per nucleon N Δ = 0.012 ± 0.005 was obtained for the 12C nucleus, and 16O N Δ = 0.018 ± 0.004 was obtained for the 16O nucleus. © 2010 Allerton Press, Inc.
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页码：747 / 749
页数：2
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