,Possible Mechanisms of Ternary Fission in the 197Au+197Au System at 15 A MeV

来源 :中国物理快报(英文版) | 被引量 : 0次 | 上传用户:cjl11082009
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Teary fission in 197Au+197Au collisions at 15A MeV is investigated by using the improved quantum molecular dynamical (ImQMD) model.The experimental mass distributions for each of the three fragments are reproduced for the first time without any freely adjusting parameters.The mechanisms of teary fission in central and semicentral collisions are dynamically studied.In direct prolate teary fission,two necks are found to be formed almost simultaneously and rupture sequentially in a very short time interval.Direct oblate teary fission is a very rare fission event,in which three necks are formed and rupture simultaneously,forming three equally sized fragments along space-symmetric directions in the reaction plane.In sequential teary fission a binary division is followed by another binary fission event after hundreds of fm/c.
其他文献
手机用一段时间会发热,电脑速度还是感觉不够快,冰箱耗电太多——你是不是对家里的电器总是有些不满意?未来,如果能把拓扑材料应用到电器中,这些问题都可迎刃而解。  因为在拓扑材料、拓扑相变领域的重大贡献,3位科学家获得了2016年度诺贝尔物理学奖。他们分别是英美双重国籍的戴维·索利斯,英国的邓肯·霍尔丹及迈克尔·科斯特利茨。这3位科学家是拓扑物态研究的先驱和开创者,他们在拓扑物态的早期开创性工作,打下
期刊
The flow properties in microtubes, such as velocity profiles and pressure distributions, are different from those in macrotubes. We attribute this phenomenon to
期刊
期刊
我区大豆品种资源贫乏,在为数不多的品种中,又多是适应较低生产水平的地方品种,种性较差,产量偏低。发展我区大豆生产必需重视大豆的良种选育工作。1982~1984年,我们对引进的
为摸清花生叶斑病在本县田间的消长规律及其危害,提供防治依据,1985年对花生叶斑病进行了定点观测。通过对病态观测,人工去叶模拟试验,生物产量测定及正交防治试验,初步掌握
We study a new symmetric perturbation,i.e.weakly Noether symmetric perturbation (WNSP).The criterion and definition of WNSP and Noether symmetric perturbation (
期刊
3TZF—6型甜菜中耕追肥机是为甜菜等作物设计的中耕除草、追肥、松土及培土等多功能新型田间管理机具。该机设计主要性能指标为:行距以45厘米平作为主,50、60、70厘米可调,
在找出解决策略之前,首先应该弄清楚是什么样的原因让这三个小朋友不与其他小朋友分享快乐与困难,导致其他小朋友很难融入他们的交往圈。只有追根溯源,弄清原因,才能对症下药。针对以上案例,我们认为可能有以下几种原因:   原因一:小朋友自身性格偏内向,不擅长与他人交往。针对这个原因,我们可以采取以下措施:   首先,幼儿的健康成长离不开家庭和幼儿园的共育,《幼儿园教育指导纲要(试行)》明确指出:“幼儿
Green InGaN/GaN based light-emitting diodes (LEDs) are fabricated both on planar and wet-etched patteed sapphire substrates by metalorganic vapour phase epitaxy
期刊
The ac susceptibility of single crystals of Nia single-molecule magnets is measured by a compensation measurement setup. The magnetic relaxation time calculated
期刊