Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions

Chu Zhili; Zheng Yuming; Wang Fei; Sa Benhao; Lu Zhongdao

Chinese Physics C> 1996, Vol. 20> Issue(S2) : 155-164

Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions

China Institute of Atomic Energy, Beijing, China

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Abstract：
We use the RVUU model to study dynamical processes of the kaon and pion produced in heavy ion collisions. We include the nuclear medium effect on kaon and pion in the model, and simulate the pion production and kaon subthreshold production process in heavy ion collisions at 1 GeV/nucleon. The calculated results show that the attractive pion optical potential changes the final pion momentum spectrum, increasing transverse momentum spectrum at the low momentum region. At the same time, it also apparently enhances kaon abundance and modifies kaon momentum distribution. It illustrates that both kaon and pion final state dynamic processes should be considered in order to make a reasonable comment on the signals in heavy ion collisions.
- heavy-ion collision ,
- dynamical simulation ,
- transverse momentum spectra

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Chu Zhili, Zheng Yuming, Wang Fei, Sa Benhao and Lu Zhongdao. Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions[J]. Chinese Physics C, 1996, 20(S2): 155-164.

Chu Zhili, Zheng Yuming, Wang Fei, Sa Benhao and Lu Zhongdao. Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions[J]. Chinese Physics C, 1996, 20(S2): 155-164. shu

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Received: 1995-05-18

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沈阳化工大学材料科学与工程学院沈阳 110142

Unified Dynamical Simulation of Kaon and Pion Production in Heavy Ion Collisions

China Institute of Atomic Energy, Beijing, China

Received Date: 1995-05-18

Abstract: We use the RVUU model to study dynamical processes of the kaon and pion produced in heavy ion collisions. We include the nuclear medium effect on kaon and pion in the model, and simulate the pion production and kaon subthreshold production process in heavy ion collisions at 1 GeV/nucleon. The calculated results show that the attractive pion optical potential changes the final pion momentum spectrum, increasing transverse momentum spectrum at the low momentum region. At the same time, it also apparently enhances kaon abundance and modifies kaon momentum distribution. It illustrates that both kaon and pion final state dynamic processes should be considered in order to make a reasonable comment on the signals in heavy ion collisions.