Study On The Yield Of Charged Hardrons In CBM Energy Region

Helmholtzzentrum f ü R schwerionen for schung Gmb H),which belongs to Helmholtz Federation of Germany,uses particle accelerator to carry out modern basic physics research(at the same time,it is also engaged in biophysics and Radiation Medicine Research),and has carried out many plans respectively.Baryon compressor(CBM)is a new experimental device in the research center,at that time,many new projects will be studied on this device.In the future,many nuclear experiments will continue in the world.In order to provide experimental reference and theoretical comparison,we use the multiphase transport model(Ampt)to simulate the xenon xenon(xexe)collision in the CBM energy region(beam energy 10-40 AGe V),and systematically study the transverse momentum spectra of several final charged hadrons(π,K,P)in the central rapidity region.The results show that under the condition of fixed beam energy,the production of charged particles in the center fast region decreases gradually from the center collision to the edge collision.The fitting results of the transverse momentum spectrum of hadron based on the thermal model with radial flow show that under the fixed beam energy,from the center collision to the edge collision,the average transverse velocity of the strongly interacting matter system decreases and the temperature of the system increases gradually.