| Original Articles |
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Asymptotic Normalization Coefficient of 27P → 26Si + p and Radius of 27P Halo |
| GUO Bing;LI Zhi-Hong;LIU Wei-Ping;BAI Xi-Xiang |
| China Institute of Atomic Energy, PO Box 275(46), Beijing 102413 |
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| Cite this article: |
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GUO Bing, LI Zhi-Hong, LIU Wei-Ping et al 2006 Chin. Phys. Lett. 23 52-54 |
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Abstract The asymptotic normalization coefficient of the virtual decay 27P → 26Si + p is extracted to be 1840±240fm-1 from the peripheral 26Mg(d,p)27Mg reaction using charge symmetry of mirror pair, for the first time. It is then used to derive the rms radius of the valence proton in the ground state of 27P. We obtain the rms radius 2>1/2 = 4.57 ± 0.36fm, significantly larger than the matter radius of 27P. The probability of the valence proton outside the matter radius of 27P is found to be 73%. The present work supports the conclusion that the 27P ground state has a proton halo structure.
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| Keywords:
21.10.Gv
21.10.Dr
24.10.-i
27.20.+n
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Published: 01 January 2006
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| PACS: |
21.10.Gv
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(Nucleon distributions and halo features)
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21.10.Dr
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(Binding energies and masses)
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24.10.-i
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(Nuclear reaction models and methods)
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27.20.+n
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(6 ≤ A ≤ 19)
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