How accurately can we predict synthesis cross sections of superheavy elements？  

作　　者：David Boilley Bartholome Cauchois Hongliang Lu Anthony Marchix Yasuhisa Abe Caiwan Shen 

机构地区：[1]GANIL, CEA/DRF-CNRS/IN2P3, Caen, France [2]Normandie Universite, Unicaen, Caen, France [3]Irfu-CEA, Universite Paris-Saclay, Gif-sur-Yvette, France [4]RCNP, Osaka University, Ibaraki-shi, Japan [5]School of Science, Huzhou University, Huzhou 313000,China

出　　处：《Nuclear Science and Techniques》2018年第12期15-20,共6页核技术（英文）

基　　金：supported in part by the NSF of China(Nos.11747312,U1732138,11790325,11790323);the Joint International Laboratory between France and Japan(LIA FJNSP)

摘　　要：Synthesis of superheavy elements beyond oganesson is facing new challenges as new target–projectile combinations are necessary. Guidance from models is thus expected for future experiments. However, hindered fusion models are not well established and predictions in the fission barriers span few MeVs. Consequently, predictions are not reliable. Strategies to constrain both fusion hindrance and fission barriers are necessary to improve the predictive power of the models. But, there is no hope to get an accuracy better than one order of magnitude in fusion–evaporation reactions leading to superheavy elements synthesis.Synthesis of superheavy elements beyond oganesson is facing new challenges as new target-projectile combinations are necessary. Guidance from models is thus expected for future experiments. However, hindered fusion models are not well established and predictions in the fission barriers span few MeVs. Consequently, predictions are not reliable. Strategies to constrain both fusion hindrance and fission barriers are necessary to improve the predictive power of the models. But, there is no hope to get an accuracy better than one order of magnitude in fusionevaporation reactions leading to superheavy elements synthesis.

关 键 词：超重元素 合成 预言 十字节 地能 模型 精确性 数量级 

分 类 号：O571[理学—粒子物理与原子核物理]