Gamow-Teller strength distributions in [Formula Presented]-shell nuclei

P. B. Radha; D. J. Dean; S. E. Koonin; K. Langanke; P. Vogel

doi:10.1103/PhysRevC.56.3079

Gamow-Teller strength distributions in [Formula Presented]-shell nuclei

P. B. Radha, D. J. Dean, S. E. Koonin, K. Langanke, P. Vogel

Research output: Contribution to journal › Article › peer-review

Abstract

We use the shell model Monte Carlo method to calculate complete [Formula Presented]-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a maximum entropy technique. The approach is validated against direct diagonalization for [Formula Presented]Ti. Calculated GT strength distributions agree well with data from [Formula Presented] and [Formula Presented] reactions for nuclei with [Formula Presented]–64. We also calculate the temperature evolution of the GT[Formula Presented] distributions for representative nuclei and find that the GT[Formula Presented] distributions broaden and the centroids shift to lower energies with increasing temperature.

Original language	English (US)
Pages (from-to)	3079-3086
Number of pages	8
Journal	Physical Review C - Nuclear Physics
Volume	56
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.56.3079
State	Published - 1997

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.56.3079

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abstract = "We use the shell model Monte Carlo method to calculate complete [Formula Presented]-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a maximum entropy technique. The approach is validated against direct diagonalization for [Formula Presented]Ti. Calculated GT strength distributions agree well with data from [Formula Presented] and [Formula Presented] reactions for nuclei with [Formula Presented]–64. We also calculate the temperature evolution of the GT[Formula Presented] distributions for representative nuclei and find that the GT[Formula Presented] distributions broaden and the centroids shift to lower energies with increasing temperature.",

author = "Radha, {P. B.} and Dean, {D. J.} and Koonin, {S. E.} and K. Langanke and P. Vogel",

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AU - Dean, D. J.

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AU - Langanke, K.

AU - Vogel, P.

PY - 1997

Y1 - 1997

N2 - We use the shell model Monte Carlo method to calculate complete [Formula Presented]-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a maximum entropy technique. The approach is validated against direct diagonalization for [Formula Presented]Ti. Calculated GT strength distributions agree well with data from [Formula Presented] and [Formula Presented] reactions for nuclei with [Formula Presented]–64. We also calculate the temperature evolution of the GT[Formula Presented] distributions for representative nuclei and find that the GT[Formula Presented] distributions broaden and the centroids shift to lower energies with increasing temperature.

AB - We use the shell model Monte Carlo method to calculate complete [Formula Presented]-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a maximum entropy technique. The approach is validated against direct diagonalization for [Formula Presented]Ti. Calculated GT strength distributions agree well with data from [Formula Presented] and [Formula Presented] reactions for nuclei with [Formula Presented]–64. We also calculate the temperature evolution of the GT[Formula Presented] distributions for representative nuclei and find that the GT[Formula Presented] distributions broaden and the centroids shift to lower energies with increasing temperature.

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Gamow-Teller strength distributions in [Formula Presented]-shell nuclei

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