Isobar configurations: δN correlations versus the independent particle model

I. V. Glavanakov, A. N. Tabachenko

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 languageEnglish
Pages (from-to)44-58
Number of pages15
JournalNuclear Physics A
Volume937
DOIs
Publication statusPublished - 1 May 2015

Fingerprint

isobars
configurations
photoproduction
nuclei
pions
nucleons
ground state

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 journalArticle

@article{8aa9b633468b4ad1a3d2aed586ecc08d,
title = "Isobar configurations: δN correlations versus the independent particle model",
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.",
keywords = "Cross section, Isobar configurations, Pion photoproduction, Reaction A(γ, πN)B, δN correlations",
author = "Glavanakov, {I. V.} and Tabachenko, {A. N.}",
year = "2015",
month = "5",
day = "1",
doi = "10.1016/j.nuclphysa.2015.02.007",
language = "English",
volume = "937",
pages = "44--58",
journal = "Nuclear Physics A",
issn = "0375-9474",
publisher = "Elsevier",

}

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 -