Proton Distribution Radii of ^{12-19}C Illuminate Features of Neutron Halos.
Proton Distribution Radii of ^{12-19}C Illuminate Features of Neutron Halos.
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DOI：
10.1103/physrevlett.117.102501
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发表时间：
2016-08
影响因子：
8.6
通讯作者：
R. Kanungo;W. Horiuchi;G. Hagen;G. Jansen;P. Navrátil;F. Ameil;J. Atkinson;Y. Ayyad;D. Cortina-Gil;I. Dillmann;A. Estrade;A. Evdokimov;F. Farinon;H. Geissel;G. Guastalla;R. Janik;M. Kimura;R. Knöbel;J. Kurcewicz;Y. Litvinov;M. Marta;M. Mostazo;I. Mukha;C. Nociforo;H. Ong;S. Pietri;A. Prochazka;C. Scheidenberger;B. Sitar;P. Strmen;Y. Suzuki;M. Takechi;J. Tanaka;I. Tanihata;S. Terashima;J. Vargas;H. Weick;J. Winfield
中科院分区：
文献类型：
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作者：
R. Kanungo;W. Horiuchi;G. Hagen;G. Jansen;P. Navrátil;F. Ameil;J. Atkinson;Y. Ayyad;D. Cortina-Gil;I. Dillmann;A. Estrade;A. Evdokimov;F. Farinon;H. Geissel;G. Guastalla;R. Janik;M. Kimura;R. Knöbel;J. Kurcewicz;Y. Litvinov;M. Marta;M. Mostazo;I. Mukha;C. Nociforo;H. Ong;S. Pietri;A. Prochazka;C. Scheidenberger;B. Sitar;P. Strmen;Y. Suzuki;M. Takechi;J. Tanaka;I. Tanihata;S. Terashima;J. Vargas;H. Weick;J. Winfield
本文报道了在900 A MeV能量下用碳靶首次精确测量的^{12-19}C密度的质子半径。一个厚的中子表面从^{15}C中的0.5fm发展到^{19}C中的0.1fm。发现^{19}C中的晕半径为6.4±0.7 fm，与^{11}Li一样大。基于手征核子-核子力和三核子力的从头计算很好地再现了半径。
Proton radii of ^{12-19}C densities derived from first accurate charge changing cross section measurements at 900A MeV with a carbon target are reported. A thick neutron surface evolves from ∼0.5 fm in ^{15}C to ∼1 fm in ^{19}C. The halo radius in ^{19}C is found to be 6.4±0.7 fm as large as ^{11}Li. Ab initio calculations based on chiral nucleon-nucleon and three-nucleon forces reproduce the radii well.