Abstract
The relationship between the nucleon density at large radii and the value of the rms radius is investigated in the framework of Skyrme Hartree-Fock and relativistic mean-field models. From a comparison to the charge density we constrain the models in terms of the nuclear matter incompressibility and effective mass properties required to reproduce the density shape. The results are used to extract the rms neutron radius for Pb208 from antiprotonic atom data. The result for the difference between the neutron and proton rms radii, the so-called neutron-skin thickness, is S=0.20(±0.04)(±0.05) fm, where ±0.04 fm is experimental error from the antiprotonic line width, and ±0.05 fm is the theoretical error suggested from the comparison of the models with the experimental charge density.
| Original language | English |
|---|---|
| Article number | 034305 |
| Journal | Physical Review C - Nuclear Physics |
| Volume | 76 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Sep 6 2007 |
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All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
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Neutron skin deduced from antiprotonic atom data. / Brown, B. Alex; Shen, G.; Hillhouse, G. C.; Meng, J.; Trzcińska, A.
In: Physical Review C - Nuclear Physics, Vol. 76, No. 3, 034305, 06.09.2007.Research output: Contribution to journal › Article
TY - JOUR
T1 - Neutron skin deduced from antiprotonic atom data
AU - Brown, B. Alex
AU - Shen, G.
AU - Hillhouse, G. C.
AU - Meng, J.
AU - Trzcińska, A.
PY - 2007/9/6
Y1 - 2007/9/6
N2 - The relationship between the nucleon density at large radii and the value of the rms radius is investigated in the framework of Skyrme Hartree-Fock and relativistic mean-field models. From a comparison to the charge density we constrain the models in terms of the nuclear matter incompressibility and effective mass properties required to reproduce the density shape. The results are used to extract the rms neutron radius for Pb208 from antiprotonic atom data. The result for the difference between the neutron and proton rms radii, the so-called neutron-skin thickness, is S=0.20(±0.04)(±0.05) fm, where ±0.04 fm is experimental error from the antiprotonic line width, and ±0.05 fm is the theoretical error suggested from the comparison of the models with the experimental charge density.
AB - The relationship between the nucleon density at large radii and the value of the rms radius is investigated in the framework of Skyrme Hartree-Fock and relativistic mean-field models. From a comparison to the charge density we constrain the models in terms of the nuclear matter incompressibility and effective mass properties required to reproduce the density shape. The results are used to extract the rms neutron radius for Pb208 from antiprotonic atom data. The result for the difference between the neutron and proton rms radii, the so-called neutron-skin thickness, is S=0.20(±0.04)(±0.05) fm, where ±0.04 fm is experimental error from the antiprotonic line width, and ±0.05 fm is the theoretical error suggested from the comparison of the models with the experimental charge density.
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U2 - 10.1103/PhysRevC.76.034305
DO - 10.1103/PhysRevC.76.034305
M3 - Article
VL - 76
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 3
M1 - 034305
ER -