Finite-temperature effects in magnetic dipole transitions
Finite-temperature effects in magnetic dipole transitions
复制标题
磁偶极子跃迁的有限温度效应
DOI:
10.1103/physrevc.109.024305
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发表时间:
2024
影响因子:
3.1
通讯作者:
Kaur A
中科院分区:
文献类型:
--
作者:
Kaur A
Finite-temperature effects in electromagnetic transitions in nuclei contribute to many aspects of nuclear structure and astrophysically relevant nuclear reactions. While electric dipole transitions have already been extensively studied, the temperature sensitivity of magnetic transitions remains largely unknown. This work comprises the study of isovector magnetic dipole excitations () occurring between spin-orbit (SO) partner states using the recently developed self-consistent finite-temperature relativistic quasiparticle random-phase approximation (FT-RQRPA) in the temperature range from0 to 2 MeV. Thestrength distributions ofandisotopic chains exhibit a considerable temperature dependence. Thestrength peaks shift significantly towards the lower energies due to the decrease in SO splitting energies and weakening of the residual interaction, especially above the critical temperatures where the pairing correlations vanish. By exploring the relevant two-quasiparticle configurations contributing to thestrength of closed- and open-shell nuclei, new proton and neutron excitation channels between SO partners are observed in low- and high-energy regions due to the thermal unblocking effects around the Fermi level. At higher temperatures, we have noticed an interesting result innuclei, the appearance ofexcitations, which are forbidden at zero temperature due to fully occupied (or fully vacant) spin-orbit partner states.
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DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
M. Igashira;H. Kitazawa;M. Shimizu;H. Komano;N. Yamamuro
通讯作者:
N. Yamamuro
DOI:
10.1140/epja/i2019-12771-9
发表时间:
2018-12
期刊:
The European Physical Journal A
影响因子:
--
作者:
E. Litvinova;H. Wibowo
通讯作者:
E. Litvinova;H. Wibowo
DOI:
10.1140/epja/s10050-020-00279-6
发表时间:
2020
期刊:
The European Physical Journal A
影响因子:
--
作者:
D. Santonocito;Y. Blumenfeld
通讯作者:
Y. Blumenfeld
影响因子:
4.4
作者:
S. Mukhopadhyay;D. Pandit;S. Pal;S. Bhattacharya;A. De;S. Bhattacharya;C. Bhattacharya;K. Banerjee;S. Kundu;T. Rana;G. Mukherjee;R. Pandey;M. Gohil;H. Pai;J. K. Meena;S. Banerjee
通讯作者:
S. Banerjee
影响因子:
2.7
作者:
G. Kružić;T. Oishi;N. Paar
通讯作者:
N. Paar