Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
; Guangxi Univ Technol, Dept Informat & Comp Sci, Liuzhou 545006, Peoples R China
; CAS, Inst High Energy Phys, Beijing 100039, Peoples R China
Assuming a single proton 2p state structure of N-13, we study the halo-like structure of N-13 by calculating proton-N-13 elastic scattering at the incident energy of 1GeV in the framework of Glauber multiple scattering theory. The theoretical prediction of the differential cross section is obtained. Unlike C-13, there are no experimental data available at present to examine this prediction. However, the result could be a guide to the coming experimental measurement, particularly, for a possible experiment at the Institute of Modem Physics, the Chinese Academy of Sciences, Lanzhou, China. Recalling our previous theoretical prediction for C-13 halo-like structure and its experimental verifications, our present results evidently show that a possible halo-like proton skin of N-13 in ground state most likely exists. Therefore, an immediate experimental measurement of P-N-13 elastic scattering at the energy of 1 GeV is urgently demanded.