| 1. | Thus the b ( e2 ) value of the first excitation state of 64cu has been directly measured for the first time with this method using 64cu rnb in this work 因此利用原子能院101 ‘重水反应堆,首次用低能库仑激发实验方法对‘ tll第一激发态b田)值进行直接测量。 |
| 2. | In the neon - filled franck - hertz experiment , the experimental value gravely deviates from the value of the first excited state because of the effect of highly excited state and bremsstrahlung 在充氖夫兰克赫兹实验中,由于高激发态和轫致辐射的影响使实验值严重偏离第一激发态值。 |
| 3. | In the neon - filled franck - hertz experiment , the experimental value gravely deviates from the value of the first excited state because of the effect of highly excited state and bremsstrahlung 摘要在充氖夫兰克赫兹实验中,由于高激发态和轫致辐射的影响使实验值严重偏离第一激发态值。 |
| 4. | But up to now , there is no direct experimental measurement result about the reduced transition probability of the first excitation state of 64cu and only one experiment which had measured the lifetime of low - lying excitation state of 64cu 但直到现在,有关‘ ll第一激发态ba )值无直接的实验测量结果,仅有一个实验测量了刷cll第一激发态的能级寿命,该实验通过‘ i … , ny )反应布居‘ u的激发态,通过脉冲质子束流(脉冲宽度0 |
| 5. | Those investigations have improved one ' s understanding of the structure , formation conditions , reaction mechanisms , and excitation modes of halo nuclei . inl990 ' s it was predicted that besides the ground state of the light nuclei near the drip line , the high isospin excited states may also have halo structure 除滴线附近轻核的基态外,九十年代有人预言稳定核的高同位旋激发态也可能具有晕结构, ~ ( 13 ) c第一激发态和~ 6li第二激发态被列为首选的研究对象。 |
| 6. | Meanwhile , the ancs are 1 . 16 + 0 . 10 fin - 1 / 2 , 1 . 34 + 0 . 12 fm - 1 / 2 and 0 . 94 + 0 . 08 fm - 1 / 2 ; rms radii are 3 . 16 + 0 . 32 fm , 4 . 01 + 0 . 61 fin and 5 . 64 + 0 . 90 fin ; and the probabilities of valence neutrons outside the potentials are 19 . 9 % , 53 . 6 % and 66 . 8 % for the ground state , the second and third excited states of 12b , respectively 2 。结果证实13c的第一激发态为单中子晕核态,首次从实验上证实在b稳定线上存在激发的晕核态。同时得到12b基态、第二和第三激发态anc系数分别为1 |
| 7. | The results show that the contribution of direct capture is primary in the interested temperature range of astrophysics . toward the 12c ( n , y ) 13c reaction , our calculations are good agreement with a recent experiment at low energy . a obvious enhancement of the cross section of 12c ( n , y ) 13c first excited state has been found , and it supports that the first excited state 1 / 2 + of 13c is a neutron halo state which has been found experimentally by our department group 对于第一个核反应,我们计算了直接俘获过程以及两个共振态的俘获截面和总截面,我们的计算结果显示,在天体感兴趣的温度范围内,直接俘获过程对总截面的贡献是主要的;对于第二个反应,我们的计算结果与已有的实验结果符合的较好,其中~ ( 12 ) c ( n , ) ~ ( 13 ) c的第一激发态计算结果显示出截面有明显增大,这从理论上支持了我所关于~ ( 13 ) c第一激发态具晕结构的实验发现,这是国际上第一次在激发态中发现晕结构。 |
| 8. | The lifetime of the first excitation state of 64cu on the same experiment published was i = 22 ? 9ps and t = 29 . 8 ? . 4ps respectively . multipole mixing ratio ( 8 ) of the first excitation state of 64cu , that p . w . green had studied through the angular distributions of de - excitation y rays following the 64ni ( p , ny ) reaction was determined to be s = 0 . 12 ? . 04 至于多极混合比,在1976年pwgreen等人同样利用以nio , fly )反应,通过退激y射线角分布测量,给出了时cll第一激发态的多极混合比为: 6二0l士0刀4 。 |
| 9. | From discussing and analyzing the calculated outcome we obtain the conclusions as follows : 1 . for the energies of the single electron in a square quantum wire with finite barriers , the former wavefunctions [ 12 - 14 ] are only available to the wide wires . for the oscillator strength of the single electron in a square quantum wire with finite barriers , the former wavefunctions are not appropriate 通过对计算结果的讨论和分析,得到以下结论: 1 .对有限深方形量子线中单电子的基态能和第一激发态能,前人’ 2一’ ‘ ’所取波函数只适合计算宽阱时的情况,对有限深方形量子线中单 |
| 10. | This paper has studied the wavefunction expanded in terms of the two - dimensional harmonic oscillator eigenfunction through calculating the energy of the ground state , the energy of the first excited state and the oscillator strength in a square wire with finite barriers and studied its application in these fields . the most remarkable advantage of this wavefunction is that it can satisfy the continuity of the function and of its derivative divided by the band - mass and it is convenient to calculate some physical magnitudes because the number of the terms is small 本文通过计算有限深方形量子线中单电子的基态能、第一激发态能和振子强度研究了以二维谐振子本征函数为基展开的波函数以及它在这些问题中的应用,此波函数的显著优点是:在边界处满足波函数的连续性条件和粒子流的守恒条件,并且展开项数少,计算方便。 |