Continuum shell model predictions for<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mi mathvariant="normal">Be</mml:mi><mml:mprescripts /><mml:none /><mml:mn>7</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mi>p</mml:mi></mml:mrow></mml:math>

Halderson, Dean

doi:10.1103/physrevc.69.014609

Phys. Rev. C

2004

DOI: 10.1103/physrevc.69.014609

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Continuum shell model predictions forBe7+p

Dean Halderson

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Cited by 13 publications

(37 citation statements)

References 23 publications

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“…It is interesting to point out that some evidence for the 2 + state at 3.0 MeV was also presented in Ref. [8] based on the RCCSM analysis of the 7 Be + p elastic scattering excitation function measured in Ref. [6].…”

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confidence: 79%

“…Generally, properties of stable light nuclei, which include level schemes, are reproduced rather well by the so-called ab initio methods that start from the basic interactions of nucleons [1,2]. However, the neutron deficient isotope of boron 8 B and its mirror nucleus 8 Li provide an interesting exception. Most ab initio calculations, which include one from more than 10 years ago [3], predict more positive parity states below 4 MeV than what has been observed experimentally.…”

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confidence: 99%

“…Consequently, it is rather surprising that these levels have not been observed to date. The importance of the 7 Be(p,γ ) 8 B reaction for understanding the solar neutrino flux is another stimulus for taking a closer look at the 8 B structure. Previously unaccounted for low-lying states in 8 B may alter the theoretical extrapolation of the 7 Be(p,γ ) 8 B S factor.…”

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confidence: 99%

“…This possibility was considered by Halderson in the framework of the recoil corrected continuum shell model (RCCSM) [8], and the suggestion was made to use inelastic 7 Be + p scattering to search for the missing states. It is interesting to point out that some evidence for the 2 + state at 3.0 MeV was also presented in Ref.…”

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confidence: 99%

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Low-lying states inB8

et al. 2010

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Excitation functions of elastic and inelastic 7 Be + p scattering were measured in the energy range between 1.6 and 2.8 MeV in the c.m. An R-matrix analysis of the excitation functions provides strong evidence for new positive parity states in 8 B. A new 2 + state at an excitation energy of 2.55 MeV was observed, and a new 0 + state at 1.9 MeV is tentatively suggested. The R-matrix and time-dependent continuum shell model were used in the analysis of the excitation functions. The new results are compared to the calculations of contemporary theoretical models.

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confidence: 79%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Low-lying states inB8

et al. 2010

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“…The first one uses the well established shell-model Hamiltonian and couples it with the corresponding reaction channels. The recoil corrected continuum shell model (RCCSM) [1] and the time-dependent continuum shell model (TDCSM) [2] are examples of these approaches.…”

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confidence: 99%

Structure of8B from elastic and inelastic7Be+pscattering

et al. 2013

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Background: Detailed experimental knowledge of the level structure of light weakly bound nuclei is necessary to guide the development of new theoretical approaches that combine nuclear structure with reaction dynamics.Purpose: The resonant structure of 8 B is studied in this work.Method: Excitation functions for elastic and inelastic 7 Be+p scattering were measured using a 7 Be rare isotope beam. Excitation energies ranging between 1.6 and 3.4 MeV were investigated.An R-matrix analysis of the excitation functions was performed. Conclusions: Identification of the 0 + , 2 + , 1 + states that were predicted by some models at relatively low energy but never observed experimentally is an important step toward understanding the structure of 8 B. Their identification was aided by having both elastic and inelastic scattering data. Direct comparison of the cross sections and phase shifts predicted by the TDCSM and ab initio No Core Shell Model coupled with the resonating group method is of particular interest and provides a good test for these theoretical approaches.

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Low-lying non-normal parity states in 8B measured by proton elastic scattering on 7Be

et al. 2009

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A new measurement of proton resonance scattering on 7 Be was performed up to the center-of-mass energy of 6.7 MeV using the low-energy RI beam facility CRIB (CNS Radioactive Ion Beam separator) at the Center for Nuclear Study of the University of Tokyo. The excitation function of 7 Be+p elastic scattering above 3.5 MeV was measured successfully for the first time, providing important information about the resonance structure of the 8 B nucleus. The resonances are related to the reaction rate of 7 Be(p,γ) 8 B, which is the key reaction in solar 8 B neutrino production. Evidence for the presence of two negative parity states is presented. One of them is a 2 − state observed as a broad s-wave resonance, the existence of which had been questionable. Its possible effects on the determination of the astrophysical S-factor of 7 Be(p,γ) 8 B at solar energy are discussed. The other state had not been observed in previous measurements, and its J π was determined as 1 − .

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Continuum shell model predictions forBe7+p

Cited by 13 publications

References 23 publications

Low-lying states inB8

Low-lying states inB8

Structure of8B from elastic and inelastic7Be+pscattering

Low-lying non-normal parity states in 8B measured by proton elastic scattering on 7Be

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