Chinese Physics C > 1996, Vol. 20 > Issue(11): 1053-1056

In-medium Δ Absorption Cross Section

Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing 1000802 China Institute of Atomic Energy,Beining 102413

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Abstract：
An exact expression for calculating the in-medium △ absorption cross section is obtained within the framework of the self-consistent relativistic BUU approach. The medium effects on the △N→NN cross section is investigated, and it is found that the effective cross sation is suppressed in the medium near the threshold energy. The results are in a good agreement with the most recent experimental data of the TAPS collaboration.

References

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R.Averbeck,R.Holzmann,A.Schubert iet al/i,GSI Ann.Rep,（1994）80.[2] B.terHaar,R.Malfliet,iPhys/i.iRev/i,C36（1987）1611.[3] G.F.Bertsch,G.E.Brown,V.Koch iet al/i,iNucl/i.iPhys/i,A490（1988）745.[4] GuangjunMaO,ZhuxiaLi,YizhongZhuo iet al/i,iPhys/i.iRev/i,C49（1994）3137;Guangiun Mao,Zhuxia Li,Yizhong Zhuo iet al/i,iPhys/i iLett/i,B327（1994）183.[5] P.Danielewicz,G.F.Bertsch,iNucl/i.iPhys/i,A533（1991）712.[6] Gy.Wolf,W.Cassing,U.Mosel,iNucl/i.iPhys/i,A545（1992）139c;iNucl/i.iPhys/i,A552（1993）549.[7] R.Holzmann,A.Schubert,S.Hlav iet al/i,iPhys/i.iLett/i,B366（1996）63.[8] Gy.Wolf,G.Batko,W.Cassing iet al/i,iNucl/i.iPhys/i,A517（1990）615.

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Mao Guangjun, Li Zhuxia, Zhuo Yizhong and Zhao Enguang. In-medium Δ Absorption Cross Section[J]. Chinese Physics C, 1996, 20(11): 1053-1056.

Mao Guangjun, Li Zhuxia, Zhuo Yizhong and Zhao Enguang. In-medium Δ Absorption Cross Section[J]. Chinese Physics C, 1996, 20(11): 1053-1056. shu

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Received: 1900-01-01
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

In-medium Δ Absorption Cross Section

Corresponding author:Mao Guangjun,

Institute of Theoretical Physics, The Chinese Academy of Sciences, Beijing 1000802 China Institute of Atomic Energy,Beining 102413

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1996-11-05

Abstract:An exact expression for calculating the in-medium △ absorption cross section is obtained within the framework of the self-consistent relativistic BUU approach. The medium effects on the △N→NN cross section is investigated, and it is found that the effective cross sation is suppressed in the medium near the threshold energy. The results are in a good agreement with the most recent experimental data of the TAPS collaboration.