Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
; Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
The pp -> nK(+)Sigma(+) reaction is a very good isospin 3/2 filter for studying Delta(++*) decaying to K(+)Sigma(+). The proton beam experiment with a scheduled 4 pi hadron detector at Lanzhou Cooler Storage Ring (CSR) will make the study of this reaction possible. Here, based on very limited available knowledge on the relevant ingredients for this reaction, we give theoretical prediction with Monte Carlo simulation for various observables for this reaction. This could serve as a reference for building the scheduled hadron detector and for identifying new physics in the following-on experiments at CSR.