Low-lying continuum structures in 8B and 8Li in a microscopic model

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We search for low-lying resonances in the 8B and 8Li nuclei using a microscopic cluster model and a variational scattering method, which is analytically continued to complex energies. After fine-tuning the nucleon-nucleon interaction to get the known 1 + state of 8B at the right energy, we reproduce the known spectra of the studied nuclei. In addition, our model predicts a 1 + state at 1.3 MeV in 8B, relative to the 7Be + p threshold, whose corresponding pair is situated right at the 7Li+n threshold in 8Li. Lacking any experimental evidence for the existence of such states, it is presently uncertain whether these structures really exist or whether they are spurious resonances in our model. We demonstrate that the predicted state in 8B, if it exists, would have important consequences for the understanding of the astrophysically important 7Be(p, γ)8B reaction.

Original languageEnglish
Pages (from-to)243111-243115
Number of pages5
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number2
Publication statusPublished - Feb 2000

Fingerprint

continuums
nuclei
thresholds
nucleon-nucleon interactions
tuning
energy
scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Low-lying continuum structures in 8B and 8Li in a microscopic model. / Csótó, A.

In: Physical Review C - Nuclear Physics, Vol. 61, No. 2, 02.2000, p. 243111-243115.

Research output: Contribution to journalArticle

@article{70e80ccbdc3245829bec73ee7eec8a80,
title = "Low-lying continuum structures in 8B and 8Li in a microscopic model",
abstract = "We search for low-lying resonances in the 8B and 8Li nuclei using a microscopic cluster model and a variational scattering method, which is analytically continued to complex energies. After fine-tuning the nucleon-nucleon interaction to get the known 1 + state of 8B at the right energy, we reproduce the known spectra of the studied nuclei. In addition, our model predicts a 1 + state at 1.3 MeV in 8B, relative to the 7Be + p threshold, whose corresponding pair is situated right at the 7Li+n threshold in 8Li. Lacking any experimental evidence for the existence of such states, it is presently uncertain whether these structures really exist or whether they are spurious resonances in our model. We demonstrate that the predicted state in 8B, if it exists, would have important consequences for the understanding of the astrophysically important 7Be(p, γ)8B reaction.",
author = "A. Cs{\'o}t{\'o}",
year = "2000",
month = "2",
language = "English",
volume = "61",
pages = "243111--243115",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Low-lying continuum structures in 8B and 8Li in a microscopic model

AU - Csótó, A.

PY - 2000/2

Y1 - 2000/2

N2 - We search for low-lying resonances in the 8B and 8Li nuclei using a microscopic cluster model and a variational scattering method, which is analytically continued to complex energies. After fine-tuning the nucleon-nucleon interaction to get the known 1 + state of 8B at the right energy, we reproduce the known spectra of the studied nuclei. In addition, our model predicts a 1 + state at 1.3 MeV in 8B, relative to the 7Be + p threshold, whose corresponding pair is situated right at the 7Li+n threshold in 8Li. Lacking any experimental evidence for the existence of such states, it is presently uncertain whether these structures really exist or whether they are spurious resonances in our model. We demonstrate that the predicted state in 8B, if it exists, would have important consequences for the understanding of the astrophysically important 7Be(p, γ)8B reaction.

AB - We search for low-lying resonances in the 8B and 8Li nuclei using a microscopic cluster model and a variational scattering method, which is analytically continued to complex energies. After fine-tuning the nucleon-nucleon interaction to get the known 1 + state of 8B at the right energy, we reproduce the known spectra of the studied nuclei. In addition, our model predicts a 1 + state at 1.3 MeV in 8B, relative to the 7Be + p threshold, whose corresponding pair is situated right at the 7Li+n threshold in 8Li. Lacking any experimental evidence for the existence of such states, it is presently uncertain whether these structures really exist or whether they are spurious resonances in our model. We demonstrate that the predicted state in 8B, if it exists, would have important consequences for the understanding of the astrophysically important 7Be(p, γ)8B reaction.

UR - http://www.scopus.com/inward/record.url?scp=18344418470&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18344418470&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:18344418470

VL - 61

SP - 243111

EP - 243115

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 2

ER -