Abstract
We present a comparative analysis of two models for the A(γ, π. N). B reaction, which take into account the isobar configurations in the ground state of the nuclei: the δ. N correlation model and the quasifree pion photoproduction model. The considered models differ in their descriptions of the nucleus states. The δ. N correlation model takes into account the dynamic correlations of the nucleon and isobar formed in the virtual transition NN→δ. N, and in the quasifree pion photoproduction model, isobars and nucleons in the nucleus are considered as independent constituents. The predictions of the models are considered for two reactions O16(γ,π+p)C15 and O16(γ,π-p)O15. It is shown, that the two models predict the differential cross section significantly differing both in absolute values, and in the shape of the angular dependence. We compare the results of the δ. N correlation model for the (γ, π. N) and (γ, π. NN) reactions with the O16(γ,π-p) reaction data measured at BNL. Our results give support to the δ. N correlation model.
| Original language | English |
|---|---|
| Pages (from-to) | 44-58 |
| Number of pages | 15 |
| Journal | Nuclear Physics A |
| Volume | 937 |
| DOIs | |
| Publication status | Published - 1 May 2015 |
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Keywords
- Cross section
- Isobar configurations
- Pion photoproduction
- Reaction A(γ, πN)B
- δN correlations
ASJC Scopus subject areas
- Nuclear and High Energy Physics
Cite this
Isobar configurations : δN correlations versus the independent particle model. / Glavanakov, I. V.; Tabachenko, A. N.
In: Nuclear Physics A, Vol. 937, 01.05.2015, p. 44-58.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Isobar configurations
T2 - δN correlations versus the independent particle model
AU - Glavanakov, I. V.
AU - Tabachenko, A. N.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - We present a comparative analysis of two models for the A(γ, π. N). B reaction, which take into account the isobar configurations in the ground state of the nuclei: the δ. N correlation model and the quasifree pion photoproduction model. The considered models differ in their descriptions of the nucleus states. The δ. N correlation model takes into account the dynamic correlations of the nucleon and isobar formed in the virtual transition NN→δ. N, and in the quasifree pion photoproduction model, isobars and nucleons in the nucleus are considered as independent constituents. The predictions of the models are considered for two reactions O16(γ,π+p)C15 and O16(γ,π-p)O15. It is shown, that the two models predict the differential cross section significantly differing both in absolute values, and in the shape of the angular dependence. We compare the results of the δ. N correlation model for the (γ, π. N) and (γ, π. NN) reactions with the O16(γ,π-p) reaction data measured at BNL. Our results give support to the δ. N correlation model.
AB - We present a comparative analysis of two models for the A(γ, π. N). B reaction, which take into account the isobar configurations in the ground state of the nuclei: the δ. N correlation model and the quasifree pion photoproduction model. The considered models differ in their descriptions of the nucleus states. The δ. N correlation model takes into account the dynamic correlations of the nucleon and isobar formed in the virtual transition NN→δ. N, and in the quasifree pion photoproduction model, isobars and nucleons in the nucleus are considered as independent constituents. The predictions of the models are considered for two reactions O16(γ,π+p)C15 and O16(γ,π-p)O15. It is shown, that the two models predict the differential cross section significantly differing both in absolute values, and in the shape of the angular dependence. We compare the results of the δ. N correlation model for the (γ, π. N) and (γ, π. NN) reactions with the O16(γ,π-p) reaction data measured at BNL. Our results give support to the δ. N correlation model.
KW - Cross section
KW - Isobar configurations
KW - Pion photoproduction
KW - Reaction A(γ, πN)B
KW - δN correlations
UR - http://www.scopus.com/inward/record.url?scp=84923375430&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84923375430&partnerID=8YFLogxK
U2 - 10.1016/j.nuclphysa.2015.02.007
DO - 10.1016/j.nuclphysa.2015.02.007
M3 - Article
AN - SCOPUS:84923375430
VL - 937
SP - 44
EP - 58
JO - Nuclear Physics A
JF - Nuclear Physics A
SN - 0375-9474
ER -