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140 A MeV 40,48Ca和58,64Ni炮弹碎裂反应产物的统计擦碎模型计算

魏慧玲 马春旺

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140 A MeV 40,48Ca和58,64Ni炮弹碎裂反应产物的统计擦碎模型计算

魏慧玲, 马春旺

The calculation of the 140 A MeV 40,48Ca and 58,64Ni projectile fragmentation by the statistical abrasion-ablation model

Wei Hui-Ling, Ma Chun-Wang
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  • 用统计擦碎模型计算了140 A MeV 40,48Ca+9Be和58,64Ni+9Be弹核碎裂反应产物的截面.通过对碎片截面计算结果和实验测量结果的比较发现,采用自由空间的核子-核子反应截面计算时,对非中心反应产物的截面拟合很好,而对中心反应产物的截面有较大高估,而采用饱和密度相关的核子-核子反应截面计算时,对非周边反应产物的截面拟合较好,而对周边反应产物的截面有一定程度的低估.在统计擦碎模型中,对核子-核子反应截面进行细致的介质密度关联,可能会改进计算值与实验值的符合程度.
    The cross sections of fragments produced in the 140 A MeV 40,48Ca+9Be and 58,64Ni+9Be reactions have been calculated by the statistical abrasion-ablation model. The calculated cross sections of fragments are compared to the experimental results. Adopting the free space nucleus-nucleus cross sections in the calculations, the cross sections of fragments produced in the non-central collisions are well reproduced, but the cross sections of fragments produced in the central collisions are overestimated. If adopting the saturate density related nucleus-nucleus cross sections in the calculation, the cross sections of fragments produced in the non-peripheral collisions are well reproduced, but the cross sections of fragments produced in the peripheral collision are underestimated. It's suggested that the cross sections of fragments will be better reproduced by the SAA model if the nucleus-nucleus cross sections are related to the density distributions of projectile and target nuclei precisely.
    • 基金项目: 国家自然科学基金(批准号:10905017,10775168,10775039),上海科学技术发展基金(批准号: 06QA14062),河南省教育厅"2010 年河南省高校科技创新团队"基金(批准号:2010IRTSTHN002),国家重点基础研究发展计划(批准号:2007CB815004)资助的课题.
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    Liu J Y, Guo W J, Zuo W, Li X G 2009 Acta Phys. Sin. 58 1517 (in Chinese) [刘建业、郭文军、左 维、李希国 2009 物理学报 58 1517]

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    Brohm T, Schmidt K H 1994 Nucl. Phys. A 569 821

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    Fang D Q, Shen W Q, Feng J, Cai X Z, Wang J S, Su Q M, Ma Y G, Zhu Y T, Li S L, Wu H Y, Gou Q B, Jin G M, Zhan W L, Guo Z Y, Xiao G Q 2000 Phys. Rev. C 61 044610

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    Fang D Q, Shen W Q, Feng J, Cai X Z, Ma Y G, Zhang H Y, Hu P Y, Zhan W L, Guo Z Y, Xiao G Q, Li J X, Wang M, Wang J F, Ning Z J, Wang J Q, Wang J S, Wang Q J, Chen Z Q 2001 Eur. Phys. J. A 10 381

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    Ma C W, Fu Y, Fang D Q, Ma Y G, Cai X Z, Guo W, Tian W D, Wang H W 2008 Chin. Phys. B 17 1216

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    Ma C W, Fu Y, Fang D Q, Ma Y G, Cai X Z, Tian W D, Wang K, Zhong C 2008 Inter. J. Mod. Phys. E 17 1669

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    Zhong C, Ma Y G, Fang D Q, Zhong C, Ma Y G, Fang D Q,Cai X Z, Chen J G, Shen W Q,Tian W D, Wang K, Wei Y B, Chen J H, Guo W, Ma C W, Ma G L, Su Q M,Yan T Z, Zuo J X 2006 Chin. Phys. 15 1481

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    Cai X Z, Fen J, Shen W Q, Ma Y G, Wang J S, Ye W 1998 Phys. Rev. C 58 572

  • [1]

    Li B A, Chen L W, Ko C M 2008 Phys. Rep. 464 113

    [2]

    Ma Y G 2000 Acta Phys. Sin. 49 654 (in Chinese) [马余刚 2000 物理学报 49 654]

    [3]

    Tsang M B, Friedman W A, Gelbke C K, Lynch W G, Verdel G, Xu H S 2001 Phys. Rev. Lett. 86 5023

    [4]

    Ma Y G, Natowitz J B, Wada R, Hagel K, Wang J, Keutgen T, Majka Z, Murray M, Qin L, Smith P, Alfaro R, Cibor J, Cinausero M, Masri Y El, Fabris D, Fioretto E, Keksis A, Lunardon M, Makeev A, Marie N, Martin E, Martinez-Davalos A, Menchaca-Rocha A, Nebbia G, Prete G, Rizzi V, Ruangma A, Shetty D V, Souliotis G, Staszel P, Veselsky M, Viesti G, Winchester E M, Yennello S J 2005 Phys. Rev. C 71 054606

    [5]

    Ma Y G, Yan T Z, Cai X Z, Chen J G, Fang D Q, Guo W, Liu G H, Ma C W, Ma E J, Shen W Q, Shi Y, Su Q M, Tian W D, Wang H W, Wang K 2007 Nucl. Phys. A 787 611c

    [6]

    Hauger J A, Warren P, Albergo S, Bieser F, Brady F P, Caccia Z, Cebra D A, Chacon A D, Chance J L, Choi Y, Costa S, Elliott J B, Gilkes M L, Hirsch A S, Hjort E L, Insolia A, Justice M, Keane D, Kintner J C, Lindenstruth V, Lisa M A, Matis H S, McMahan M, McParland C, Müller W F J, Olson D L, Partlan M D, Porile N T, Potenza R, Rai G, Rasmussen J, Ritter H G, Romanski J, Romero J L, Russo G V, Sann H, Scharenberg R P, Scott A, Shao Y, Srivastava B K, Symons T J M, Tincknell M, Tuvé C, Wang S, Wieman H H, Wienold T, Wolf K (EOS Collaboration) 1998 Phys. Rev. C 57 764

    [7]

    Liu J Y, Guo W J, Zuo W, Li X G 2009 Acta Phys. Sin. 58 1517 (in Chinese) [刘建业、郭文军、左 维、李希国 2009 物理学报 58 1517]

    [8]

    Li X G, Hao H F, Liu J Y ,Zuo W 2008 Acta Phys. Sin. 57 2136 (in Chinese) [刘建业、郝焕锋、左 维、李希国 2008 物理学报 57 2136]

    [9]

    Chen L W, Li B A, Yong G C, Zuo W 2006 Acta Phys. Sin. 55 5116 (in Chinese) [陈列文、李宝安、雍高产、左 维 2006 物理学报 55 5166]

    [10]

    Li W F, Xu H S, Zhang F S, Li J F, Chen L W 2002 Acta Phys. Sin. 51 1700 (in Chinese) [李文飞、徐瑚珊、张丰收、 李剑锋、陈列文 2002 物理学报 51 1700] 〖11] Mocko M, Tsang M B, Andronenko L, Andronenko M, Delaunay F, Famiano M, Ginter T, Henzl V, Henzlová D, Hua H, Lukyanov S, Lynch W G, Rogers A M, Steiner M, Stolz A, Tarasov O, Goethem M J, Verde G, Wallace W S, Zalessov A 2006 Phys. Rev. C 74 054612

    [11]

    Mocko M, Tsang M B, Lacroix D, Ono A, Danielewicz P, Lynch W G, Charity R J 2008 Phys. Rev. C 78 024612

    [12]

    Ma C W, Wei H L, Wang J Y, Liu G J, Fu Y, Fang D Q, Tian W D, Cai X Z, Wang H W, Ma Y G 2009 Phys. Rev. C 79 034606

    [13]

    Brohm T, Schmidt K H 1994 Nucl. Phys. A 569 821

    [14]

    Fang D Q, Shen W Q, Feng J, Cai X Z, Wang J S, Su Q M, Ma Y G, Zhu Y T, Li S L, Wu H Y, Gou Q B, Jin G M, Zhan W L, Guo Z Y, Xiao G Q 2000 Phys. Rev. C 61 044610

    [15]

    Fang D Q, Shen W Q, Feng J, Cai X Z, Wang J S, Su Q M, Ma Y G, Zhu Y T, Li S L, Wu H Y, Gou Q B, Jin G M, Zhan W L, Guo Z Y, Xiao G Q 2000 Chin. Phys. Lett. 17 267

    [16]

    Zhong C, Fang D Q, Cai X Z, Shen W Q, Zhang H Y, Wei Y B, Ma Y G 2003 Chin. Phys. C 27 39

    [17]

    Ma C W, Wei H L, Wang J Y, Liu G J 2009 Chin. Phys. B 18 4781

    [18]

    Fang D Q, Shen W Q, Feng J, Cai X Z, Ma Y G, Zhang H Y, Hu P Y, Zhan W L, Guo Z Y, Xiao G Q, Li J X, Wang M, Wang J F, Ning Z J, Wang J Q, Wang J S, Wang Q J, Chen Z Q 2001 Eur. Phys. J. A 10 381

    [19]

    Ma C W, Fu Y, Fang D Q, Ma Y G, Cai X Z, Guo W, Tian W D, Wang H W 2008 Chin. Phys. B 17 1216

    [20]

    Ma C W, Fu Y, Fang D Q, Ma Y G, Cai X Z, Tian W D, Wang K, Zhong C 2008 Inter. J. Mod. Phys. E 17 1669

    [21]

    Zhong C, Ma Y G, Fang D Q, Zhong C, Ma Y G, Fang D Q,Cai X Z, Chen J G, Shen W Q,Tian W D, Wang K, Wei Y B, Chen J H, Guo W, Ma C W, Ma G L, Su Q M,Yan T Z, Zuo J X 2006 Chin. Phys. 15 1481

    [22]

    Cai X Z, Fen J, Shen W Q, Ma Y G, Wang J S, Ye W 1998 Phys. Rev. C 58 572

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出版历程
  • 收稿日期:  2009-05-04
  • 修回日期:  2009-11-21
  • 刊出日期:  2010-04-05

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