欢迎登录材料期刊网

材料期刊网

中国科学院金属研究所 科学出版社
高级检索
  1. 首页
  2. 期刊
  3. 原子核物理评论
  4. 低能重离子碰撞产生超重核动力学机制

原子核物理评论 , 2011, 28(1): 1-22.

低能重离子碰撞产生超重核动力学机制

冯兆庆 1, , 靳根明 2, , 李君清 3,

1.中国科学院近代物理研究所,甘肃,兰州,730000

2.中国科学院近代物理研究所,甘肃,兰州,730000

3.中国科学院近代物理研究所,甘肃,兰州,730000

基金项目:   中国科学院院长奖学金专项资助和西部博士项目   国家重点基础研究发展规划资助项目(2007CB815000)   国家自然科学基金资助项目(10805061;10975064)  

关键词： 超重核 , 熔合蒸发反应 , 阻尼碰撞 , 熔合动力学

Dynamics in Production of Superheavy Nuclei in Low-energy Heavy-ion Collisions

Keywords： superheavy nuclei , fusion-evaporation reaction , damped collision , fusion dynamics

总结了描述重系统碰撞形成超重核的主要理论模型进展.基于两类反应机制,即熔合蒸发反应和大质量阻尼反应,对产生超重核的物理过程进行了讨论.分析了超重核形成过程中碰撞系统的俘获、复合核的形成及蒸发退激描述存在的问题.基于双核模型分析了合成冷熔合反应和48Ca诱发全熔合反应之间的超重新核素的可能性.利用锕系核碰撞的转移反应产生子壳N=162附件丰中子重核的可行性,研究了壳效应对丰中子核素产生的影响.进一步讨论了将来基于丰中子强流放射性束合成超重核的可行性.

We present a review of the recent progress of theoretical models on the description of the superheavy nucleus formation in heavy ion collisions.Two sorts of reactions that are the fusionevaporation mechanism and the massive damped collisions toproduce superheavy nuclei are discussed.Problems and further improvements of the capture of colliding partners,the formation of compound nucleus and the de-excitation process are pointed out.Possible combinations for the synthesis of the superheavy nuclei in between the products of the cold fusion and "Ca induced reactions are proposed by the calculations based on thedinuclear system model and also compared with other approaches.The synthesis of neutron-rich heavy isotopes near sub-shell closure N=162 via transfer reactions in the damped collisions of two actinides and the influence of shell closure on the production of heavy isotopes are investigated.Prospective possibility to reach superheavy nuclei near N=184 via neutron-rich radioactive beams of high intensity in the future is discussed.

参考文献

[1] Hofmann S,Münzenberg G.Rev Mod Phys,2000,72;733;Hofmann S.Rep Prog Phys,1998,61:639.
[2] Hofmann S,Münzenberg G.Rev Mod Phys,2000,72;733;Hofmann S.Rep Prog Phys,1998,61:639.
[3] Oganessian Yu Ts.J Phys,2007,G34:R165;Nucl Phys,2007,A787:343c.
[4] Oganessian Yu Ts.J Phys,2007,G34:R165;Nucl Phys,2007,A787:343c.
[5] Hulet E K,Lougheed R W,Wild J F,et al.Phys Rev Lett,1977,39:385.
[6] Sch(a)del M,Kratz J V,Ahrens H,et al.Phys Rev Lett,1978,41;469.
[7] Oganessian Yu Ts,Iljnov A S,Demin A G,et al.Nucl Phys,1975,A239:353;A239:157.
[8] Miinzenberg G.J Phys,1999,G25:717.
[9] Morita K,Morimoto K,Kaji D,et al.J Phys Soc Jpn,2004,73;2593.
[10] Oganessian Yu Ts,Yeremin A V,Popeko A G,et al.Nature,1999,400:242;Oganessian Yu Ts,Utyonkov V K,Lobanov Yu V,et al.Phys Rev,2000,C62:041604(R).
[11] Oganessian Yu Ts,Yeremin A V,Popeko A G,et al.Nature,1999,400:242;Oganessian Yu Ts,Utyonkov V K,Lobanov Yu V,et al.Phys Rev,2000,C62:041604(R).
[12] Oganessian Yu Ts,Utyonkov V K,Lobanov Yu V,et al.Phys Rev,2004,C69:021601(R).
[13] Oganessian Yu Ts,Utyonkov V K,Lobanov Yu V,et al.Phys Rev,2006,C74:044602.
[14] Oganessian Yu Ts,Abdullin F Sh,Bailey P D,et al.Phys Rev Lett,2010,104:142502.
[15] Hofmann S,Ackermann D,Antalic S,et al.Eur Phys J,2007,A32:251.
[16] Stavsetra L,Gregorich K E,Dvorak J,et al.Phys Rev Lett,2009,103:132502.
[17] Gan Z G,Qin Z,Fan H M,et al.Eur Phys J,2001,A10:21;GanZ G,Goo J S,Wu X L,et al.Eur Phys J,2004,A20:385;Gan Zaiguo,Guo Junsheng,Wu Xiaolei,et al.Nuclear Physics Review,2005.22(1):36.(in Chinese).(甘再国,郭俊盛,吴晓蕾,等.原子核物理评论,2005,22(1):36.)
[18] Marinov A,Rodushkin I,Kolb D,et al.Int J Mod Phys,2010,E19:131.
[19] Swiatecki W J.Prog Part Nucl Phys,1980,4:383.
[20] Bjornholm S,Swiatecki W J.Nucl Phys,1982,A391:471.
[21] Blocki J P,Feldmeier H,Swiatecki W J.Nucl Phys,1986,A459,145.
[22] Aritomo Y,Wada T,Ohta M,et al.Phys Rev,1997,C55:R1011;Phys Rev,1999,C59:796.
[23] Aritomo Y,Wada T,Ohta M,et al.Phys Rev,1997,C55:R1011;Phys Rev,1999,C59:796.
[24] Zagrebaev V I.Phys Rev,2001,C64:034606;Zagrebaev V I,Aritomo Y,Itkis M G,et al.Phys Rev,2001,C65:014607.
[25] Zagrebaev V I.Phys Rev,2001,C64:034606;Zagrebaev V I,Aritomo Y,Itkis M G,et al.Phys Rev,2001,C65:014607.
[26] Zagrebaev V,Greiner W.J Phys,2005,G31:825;2007,G34:1;2008,G35;125103.
[27] Adamian G G,Antonenko N V,Scheid W,et al.Nucl Phys,1997,A627;361;A633:409.
[28] Feng Z Q,Jin G M,Fu F,et al.Nucl Phys,2006,A771:50;Feng Z Q,Jin G M,Li J Q,et al.Nucl Phys,2009,A816;33.
[29] Feng Z Q,Jin G M,Fu F,et al.Nucl Phys,2006,A771:50;Feng Z Q,Jin G M,Li J Q,et al.Nucl Phys,2009,A816;33.
[30] Feng Z Q,Jin G M,Li J Q,et al.Phys Rev,2007,C76;044606.
[31] Wang N,Li Z X,Wu X Z,et al.Phys Rev,2004,C69:034608;Wang N,Li Z X,Wu X Z,et al.Mod Phys Lett,2005,A20:2619.
[32] Wang N,Li Z X,Wu X Z,et al.Phys Rev,2004,C69:034608;Wang N,Li Z X,Wu X Z,et al.Mod Phys Lett,2005,A20:2619.
[33] Feng Z Q,Zhang F S,Jin G M,et al.Nucl Phys,2005,A750:232;Feng Z Q,Jin G M,Zhang F S,et al.Chin Phys Lett,2005,22:3040.
[34] Feng Z Q,Zhang F S,Jin G M,et al.Nucl Phys,2005,A750:232;Feng Z Q,Jin G M,Zhang F S,et al.Chin Phys Lett,2005,22:3040.
[35] Feng Z Q,Jin G M,Zhang F S.Nucl Phys,2008,A802:91;Feng Z Q,Jin G M.Phys Rev,2009,C80:037601.
[36] Feng Z Q,Jin G M,Zhang F S.Nucl Phys,2008,A802:91;Feng Z Q,Jin G M.Phys Rev,2009,C80:037601.
[37] Tian J,Wu X,Zhao K,et al.Phys Rev,2008,C77:064603.
[38] Golabek C,Simenel C.Phys Rev Lett.2009,103:042701.
[39] Siwek-Wilczynska K,Wilczynski J.Phys Rev,2004,C69:024611;Swiatecki W J,Siwek-Wilczynska K,Wilczynski J.Phys Rev,2005,C71;014602.
[40] Siwek-Wilczynska K,Wilczynski J.Phys Rev,2004,C69:024611;Swiatecki W J,Siwek-Wilczynska K,Wilczynski J.Phys Rev,2005,C71;014602.
[41] Rowley N,Satchler G R,Stetson P H.Phys Lett,1991,B254;25.
[42] Shen W Q,Albinski J,Gobbi A,et al.Phys Rev,1987,C36:115.
[43] Myers W D,Swiatecki W J.Phys Rev,2000,C62:044610.
[44] Siwek-Wilczynska K,Wilczynski J.Phys Rev,2001,C64:024611.
[45] Abe Y,Ayik S,Reinhard P-G,et al.Phys Rep,1996,275:49.
[46] Shen CW,Kosenko G,Abe Y.Phys Rev,2002,C66:061602(R).
[47] Zagrebaev V,Greiner W.Phys Rev,2008,C78:034610;Phys Rev Lett,2008,101:122701.
[48] Zagrebaev V,Greiner W.Phys Rev,2008,C78:034610;Phys Rev Lett,2008,101:122701.
[49] Stetson P H.Phys Lett,1988,B205,190.
[50] Liu Z H,13ao J D.Chin Phys Lett,2005,22:3044.
[51] Liu Z H,Bao J D.Phys Rev,2006,C74:057602.
[52] Liu Z H,Bao J D.Phys Rev,2007,C76:034604.
[53] Volkov V V.Phys Rep,1978,44:93.
[54] Adamian G G,Antonenko N V,Scheid W.Phys Rev,2003,C68:034601.
[55] Li W,Wang N,Li J,et al.Eur Phys Lett,2003,64:750.
[56] Wolschin G,N6renberg W.Z Phys,1978,A284:209.
[57] Li J Q,Tang X T,Wolschin G.Phys Lett,1981,B105:107.
[58] Feng Z Q,Jin G M,Fu F,et al.High Ener Phys and Nucl Phys,2007,31,366(in Chinese).(冯兆庆,靳根明,付芬,等.高能物理与核物理,2007,31;366.)
[59] Feng Z Q,Jin G M,Li J Q,et al.Nucl Phys,2009,A816:33.
[60] Feng Z Q,Jin G M,Li J Q.Nucl Phys,2010,A836:82.
[61] Lynn J E.Theory of Neutron Resonance Reactions.Oxford:Oxford Press,1968,325.
[62] Schmidt K H,Morawek W.Rep Prog Phys,1991,54:949.
[63] Weisskopf V.Phys Rev,1937,52:295.
[64] Huizenga J R,Chaudhry R,Vandenbosch R.Phys Rev,1962,126:210.
[65] Bohr N,Wheeler J A.Phys Rev,1939,56:426.
[66] Cohen S,Swiatecki W J.Ann Phys(N.Y.),1963,22:406.
[67] Myers W D,Swiaticki W J.Ann Phys (N.Y.),1974,84:186.
[68] Moller P,Nix J R,Myers W D,et al.At Data Nucl Data Tables,1995,59:185;Myers W D,Swiatecki W J.Nucl Phys,1996,A601:141.
[69] Moller P,Nix J R,Myers W D,et al.At Data Nucl Data Tables,1995,59:185;Myers W D,Swiatecki W J.Nucl Phys,1996,A601:141.
[70] Bethe H.Phys Rev,1936,50:332;Rev Mod Phys,1937,9:69.
[71] Bethe H.Phys Rev,1936,50:332;Rev Mod Phys,1937,9:69.
[72] Feng Z Q,Jin G M,Fu F,et al.Chin Phys Lett,2005,22:846.
[73] Feng Z Q.Studies on Heavy-ion Fusion Reactions and Synthesis of Superheavy Nuclei(Doctoral thesis).Lanzhou:Institute of Modem Physics,Chinese Academy of Sciences,2007(in Chinese).(冯兆庆.重离子熔合反应和超重核形成机制研究(博士论文).兰州:中国科学院近代物理研究所,2007.)
[74] Gregorich K E,Ginter T N,Loveland W,et al.Eur Phys J,2003,A18:633.
[75] Feng Z Q,Jin G M.Li J Q.Nuclear Physics Review,2009,26(Suppl.):168.
[76] Feng Z Q,Jin G M,Li J Q,et al.Nucl Phys,2010,A834:384c;Li J Q,Feng Z Q,Gan Z G,et al.Nucl Phys,2010,A834:353c.
[77] Feng Z Q,Jin G M,Li J Q,et al.Nucl Phys,2010,A834:384c;Li J Q,Feng Z Q,Gan Z G,et al.Nucl Phys,2010,A834:353c.
[78] Hofmann S,Ninov V,Heβberger F P,et al.Z Phys,1995,A350:277.
[79] Feng Z Q.Jin G M,Li J Q.Phys Rev,2009,C80:057601.
[80] Berriman A C,Hinde D J,Dasgupta M,et al.Nature,2001,413:144;Hinde D J.Dasgupta M,Mukherjee A.Phys RevLett,2002,89:282701.
[81] Berriman A C,Hinde D J,Dasgupta M,et al.Nature,2001,413:144;Hinde D J.Dasgupta M,Mukherjee A.Phys RevLett,2002,89:282701.
[82] Oganessian Yu Ts,Dmitriev S N,Yeremin A V,et al.Phys Rev,2009,C79:024608
[83] Swiatecki W J,Siwek-Wilczynska K,Wilczynski J.Int J Mod Phys,2004,E13:261.
[84] Oganessian Yu Ts,Utyonkov V K,Lobanov Yu V,et al.Phys Rev,2004,C70.064609.
[85] Feng Z Q,Jin G M,Li J Q.Phys Rev,2009,C80;067601.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
作者相关
文章评分
  • 您的评分：
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%

版权所有©2010中国科学院金属研究所中国科技出版传媒股份有限公司

本系统由北京仁和汇智信息技术有限公司设计开发

技术支持：info@rhhz.net