Proton distribution radii of $^{12-19}$C illuminate features of neutron halos
| Autor: | Kanungo, R., Horiuchi, W., Hagen, G., Jansen, G. R., Navratil, P., Ameil, F., Atkinson, J., Ayyad, Y., Cortina-Gil, D., Dillmann, I., Estradé, A., Evdokimov, A., Farinon, F., Geissel, H., Guastalla, G., Janik, R., Kimura, M., Knöbel, R., Kurcewicz, J., Litvinov, Yu. A., Marta, M., Mostazo, M., Mukha, I., Nociforo, C., Ong, H. J., Pietri, S., Prochazka, A., Scheidenberger, C., Sitar, B., Strmen, P., Suzuki, Y., Takechi, M., Tanaka, J., Tanihata, I., Terashima, S., Vargas, J., Weick, H., Winfield, J. S. |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 117, 102501 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.117.102501 |
| Popis: | Proton radii of $^{12-19}$C densities derived from first accurate charge changing cross section measurements at 900$A$ MeV with a carbon target are reported. A thick neutron surface evolves from $\sim$ 0.5 fm in $^{15}$C to $\sim$ 1 fm in $^{19}$C. The halo radius in $^{19}$C is found to be 6.4$\pm$0.7 fm as large as $^{11}$Li. Ab initio calculations based on chiral nucleon-nucleon and three-nucleon forces reproduce well the radii. Comment: 5 pages, 4 figures, accepted for publication in Phys. Rev. Lett |
| Databáze: | arXiv |
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