Valence <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1</mml:mn> <mml:mi>s</mml:mi> <mml:mtext>−</mml:mtext> <mml:mn>0</mml:mn> <mml:mi>d</mml:mi> </mml:mrow> </mml:math> proton vacancy of the <mml:math xmlns:mml="http:

The $^{32}\mathrm{Si}{(}^{3}\mathrm{He},\mathit{d})^{33}\mathrm{P}$ reaction was studied in inverse kinematics at $6.3\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}/u$. States in $^{33}\mathrm{P}$ corresponding to the proton $1s\text{\ensuremath{-}}0d$ single-particle orbitals were identified up to $\ensuremath{\approx}\phantom{\rule{0.16em}{0ex}}4.5$ MeV in excitation energy. The ($^{3}\mathrm{He},d$) spectroscopic factors were determined from distorted-wave Born approximation calculations. When combined with complementary neutron-adding data, the $1s\text{\ensuremath{-}}0d$ proton vacancies in the $^{32}\mathrm{Si}$ ground state were extracted. In conjunction with a reanalysis of data from previous single-particle measurements, the trends in proton and neutron vacancy were explored across the $^{28,30,32,34}\mathrm{Si}$ isotopes. Both proton and neutron vacancy data show gradual changes in their occupancies. The proton $1{s}_{1/2}$ orbitals in $^{32}\mathrm{Si}$ and $^{34}\mathrm{Si}$ are both consistent with being empty. The ground-state nucleon distributions are described by shell-model calculations constrained to the $1s\text{\ensuremath{-}}0d$ model space.

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Publication Details

Journal
Physical review. C
Published
2025-09-26
DOI
https://doi.org/10.1103/4lzs-mv3l
Primary Topic
Nuclear physics research studies
Type
article
Field-Weighted Citation Impact
0.00

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Valence <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1</mml:mn> <mml:mi>s</mml:mi> <mml:mtext>−</mml:mtext> <mml:mn>0</mml:mn> <mml:mi>d</mml:mi> </mml:mrow> </mml:math> proton vacancy of the <mml:math xmlns:mml="http:

Y. Ayyad, D. Bazin, H. Jayatissa, J. C. Zamora et al.
Physical review. C
Nuclear physics research studies
article

Valence <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1</mml:mn> <mml:mi>s</mml:mi> <mml:mtext>−</mml:mtext> <mml:mn>0</mml:mn> <mml:mi>d</mml:mi> </mml:mrow> </mml:math> proton vacancy of the <mml:math xmlns:mml="http:

Y. Ayyad, D. Bazin, H. Jayatissa, J. C. Zamora, Patrick T. MacGregor, M. Z. Serikow, N. Watwood, C. Santamaria, B. P. Kay, A. J. Mitchell, C. Müller-Gatermann, I. Tolstukhin, A. N. Kuchera, S. Beceiro-Novo, L. P. Gaffney, S. J. Freeman, F. Recchia, G. L. Wilson, D. K. Sharp, C. R. Hoffman, T. L. Tang, J. Chen, R. Garg, Alicia Muñoz, A. H. Wuosmaa
article en

Abstract

The $^{32}\mathrm{Si}{(}^{3}\mathrm{He},\mathit{d})^{33}\mathrm{P}$ reaction was studied in inverse kinematics at $6.3\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}/u$. States in $^{33}\mathrm{P}$ corresponding to the proton $1s\text{\ensuremath{-}}0d$ single-particle orbitals were identified up to $\ensuremath{\approx}\phantom{\rule{0.16em}{0ex}}4.5$ MeV in excitation energy. The ($^{3}\mathrm{He},d$) spectroscopic factors were determined from distorted-wave Born approximation calculations. When combined with complementary neutron-adding data, the $1s\text{\ensuremath{-}}0d$ proton vacancies in the $^{32}\mathrm{Si}$ ground state were extracted. In conjunction with a reanalysis of data from previous single-particle measurements, the trends in proton and neutron vacancy were explored across the $^{28,30,32,34}\mathrm{Si}$ isotopes. Both proton and neutron vacancy data show gradual changes in their occupancies. The proton $1{s}_{1/2}$ orbitals in $^{32}\mathrm{Si}$ and $^{34}\mathrm{Si}$ are both consistent with being empty. The ground-state nucleon distributions are described by shell-model calculations constrained to the $1s\text{\ensuremath{-}}0d$ model space.

Physical review. CVol. 112(5)
Universidade da Coruña (ES), Australian National University (AU), Louisiana State University (US), Argonne National Laboratory (US), University of Padua (IT), University of Connecticut (US), Davidson College (US), ITRI International (US), University of Liverpool (GB), Universidade de Santiago de Compostela (ES), University of Manchester (GB), Southern University of Science and Technology (CN), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Editorial Projects in Education (US), Electronic Product Services (Czechia) (CZ), European Organization for Nuclear Research (CH), Morgan State University (US), Michigan State University (US)
National Science Foundation, U.S. Department of Energy, National Natural Science Foundation of China, Xunta de Galicia, Office of Science, Agencia Estatal de Investigación, Nuclear Physics, Argonne National Laboratory
Openalex Percentile: Top 87%
Nuclear physics research studies
DOIOpen Access PDFOpenAlex
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