Effects of N*(1440) resonance on particle production in heavy-ion collisions at subthreshold energies Academic Article uri icon

abstract

  • We study quantitatively the effects of the N*(1440) resonance on the production of kaons, antikaons, and antiprotons in heavy-ion collisions at subthreshold energies. It is found that baryon-baryon collisions involving the N* have minor effects on the production of kaons and antikaons. For the production of antiprotons-considerably different from the previous finding that baryon-baryon collisions involving the Δ(1232) dominate-we found that collisions involving the N* are at least equally important as those involving the Δ. Medium effects such as the broadened resonance widths and decreased masses of nucleons and antinucleons are also discussed. © 1994 The American Physical Society.

author list (cited authors)

  • Li, B., Ko, C. M., & Li, G. Q.

citation count

  • 10

publication date

  • December 1994