http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : A. Z. Mekjian (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Neutron Skin Size Dependence of the Nuclear Symmetry Energy
S. J. Lee,A. Z. Mekjian 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.11
The nuclear binding energy with emphasis on the symmetry energy is studied using a finite temperature density functional theory. A Skyrme interaction is used in this work. Volume, surface,and symmetry energy contributions to the binding energy are investigated. The case of neutron skin is considered in detail. The ratio of the surface symmetry energy to the volume symmetry energy for the neutron-skin-dependent part is much larger than the corresponding ratio for the neutronskin-independent part. This shows that a large part of the surface symmetry energy comes from the different sizes of the neutron and the proton distributions. The neutron-skin-size-dependent parts of the symmetry energy coefficients have the same sign as the neutron-skin-independent parts, which indicates that a larger neutron skin causes a lager symmetry energy.
-
Interrelationship of Isospin and Angular Momentum
Larry Zamick,Suk-Joon Lee,A. Z. Mekjian 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.47 No.1
It is noted that the simple interaction in isospin variables, a(1/4 − t(i) · t(j)), in a single j shell calculation can also be written with angular momentum variables. For the configuration (j2)JA for even JA, the isospin is one; for odd JA, it is zero. Hence, the above interaction can also be written as a(1 − (−1)JA)/2. For the I = 0 state of an even-even Ti isotope with n neutrons,the Hamiltonian matrix element of this interaction is h[J0J0]0|H|[JJ]0i/a = (n + 1)JJ0 − (n + 1)jnJj|}jn+1jjnJ0j|}jn+1j. The eigenvalues of this interaction can be found by using the isospin form of the interaction. They are (n+1)a for T = |N −Z|/2 and zero for T = |N −Z|/2+2. One can apply this to some extent to obtain the number of pairs of nucleons with given total angular momentum JA in a given Ti isotope.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
