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Covariant density functional theory and three-dimensional tilted axis cranking are used to investigate multiple chirality in nuclear rotation for the first time in a fully self-consistent and microscopic way. Two distinct sets of chiral…

Nuclear Theory · Physics 2017-08-11 P. W. Zhao

High-spin states in 84Rb are studied by using the 70Zn(18O, p3n)84Rb reaction at a beam energy of 75 MeV. Three high-lying negative-parity bands are established, whose level spacings are very regular, i.e., there is no signature splitting.…

A reflection-asymmetric triaxial particle rotor model with three quasiparticles and a reflection-asymmetric triaxial rotor is developed, and applied to investigate the observed multiple chiral doublets (M\c{hi}D) candidates with octupole…

Nuclear Theory · Physics 2021-08-06 Y. P. Wang , Y. Y. Wang , J. Meng

Electron vortex beams carry well-defined orbital angular momentum (OAM) about the propagation axis. Such beams are thus characterised by chirality features which make them potentially useful as probes of magnetic and other chiral materials.…

Quantum Physics · Physics 2015-06-15 J. Yuan , S. M. Lloyd , M. Babiker

High-spin states in the doubly-odd $^{198}$Bi nucleus have been studied by using the $^{185,187}$Re($^{16}$O, xn) reactions at the beam energy of 112.5 MeV. $\gamma-\gamma$ coincidence were measured by using the INGA array with 15 Compton…

The chirality suggested for the doublet bands B2 and B2a in $^{195}$Tl in $A\sim190$ region is reexamined. The potential-energy curves and the configurations together with the deformation parameters are obtained by the constrained covariant…

Nuclear Theory · Physics 2020-06-24 J. Peng , Q. B. Chen

The dynamics of chiral nuclei is investigated for the first time with the time-dependent and tilted axis cranking covariant density functional theories on a three-dimensional space lattice in a microscopic and self-consistent way. The…

Nuclear Theory · Physics 2022-02-08 Z. X. Ren , P. W. Zhao , J. Meng

We study the effects of quantum fluctuations on a non-coplanar tetrahedral spin structure, which has a scalar chiral order, in the spin-1/2 multiple-spin exchange model with up to the six-spin exchange interactions on a triangular lattice.…

Strongly Correlated Electrons · Physics 2019-01-25 Shogo Taira , Chitoshi Yasuda , Tsutomu Momoi , Kenn Kubo

Relations between nucleon, $\Delta$ and nucleon-$\Delta$ electromagnetic properties associated with chiral physics which have been derived in a pure large-$N_c$ limit are greatly modified in a combined large $N_c$ and chiral limits; the…

High Energy Physics - Phenomenology · Physics 2009-11-07 Thomas D. COhen

We calculate reduced B(E2) and B(M1) electromagnetic transition strengths within and between K-bands in support of a recently proposed model for the structure of heavy nuclei. Previously, only spectra and a rough indication of the largest…

Nuclear Theory · Physics 2015-06-04 B. Buck , A. C. Merchant , S. M. Perez

We numerically study a one dimensional quasiperiodic system obtained from two dimensional electrons on the triangular lattice in a uniform magnetic field aided by the multifractal method. The phase diagram consists of three phases: two…

Disordered Systems and Neural Networks · Physics 2007-05-23 Kazusumi Ino , Mahito Kohmoto

After recapitulating the procedure to find the bands and the states occurring in the $\mathcal{D}_{3h}$ alpha-cluster model of $^{12}$C in which the clusters are placed at the vertexes of an equilateral triangle, we obtain the selection…

Nuclear Theory · Physics 2016-08-03 G. Stellin , L. Fortunato , A. Vitturi

Following the reports of candidate chiral doublet bands observed in cesium isotopes, the possible chiral candidates and the evolution of three-dimensional rotation in $^{120-134}{\textrm{Cs}}$ are investigated within the microscopic…

Nuclear Theory · Physics 2023-08-07 Duo Chen , Jian Li , Rui Guo

High-spin states in $^{84}$Rb are studied by using the $^{70}$Zn($^{18}$O, p3n)$^{84}$Rb reaction at beam energy of 75 MeV. Three high-lying negative-parity bands are established, whose level spacings are very regular, i.e., there don't…

Nuclear Experiment · Physics 2016-06-28 Shuifa Shen , Xin Zhao , Guangbing Han , Shuxian Wen , Yupeng Yan , Xiaoguang Wu , Lihua Zhu , Chuangye He , Guangsheng Li

Doublet bands observed in $^{124,126,130,132}$Cs isotopes are studied using the recently developed multi-quasiparticle microscopic triaxial projected shell model (TPSM) approach. It is shown that TPSM results for energies and transition…

Nuclear Theory · Physics 2015-06-18 G. H. Bhat , R. N. Ali , J. A. Sheikh , R. Palit

Superexchange calculation is performed for multi-orbital band models with broken inversion symmetry. Orbital-changing hopping terms allowed by the symmetry breaking electric field lead to a new kind of orbital exchange term closely…

Strongly Correlated Electrons · Physics 2013-05-17 Panjin Kim , Jung Hoon Han

The particle-number conserving method based on the cranked shell model is adopted to investigate the possible antimagnetic rotation bands in $^{100}$Pd. The experimental kinematic and dynamic moments of inertia, together with the $B(E2)$…

Nuclear Theory · Physics 2021-10-04 Jian-Qin Ma , Zhen-Hua Zhang

A triaxial particle-rotor Hamiltonian for three mutually perpendicular angular momentum vectors corresponding to two high-$j$ quasiparticles and the rotation of a triaxial collective core, is treated within a time-dependent variational…

Nuclear Theory · Physics 2018-08-01 R. Budaca

We calculate at two-loop order in chiral perturbation theory the electromagnetic corrections to the dominant two-pion exchange nucleon-nucleon interaction that is generated by the isoscalar $\pi N$ contact-vertex proportional to the large…

Nuclear Theory · Physics 2008-11-26 N. Kaiser

We study the multifractality (MF) of critical wave functions at boundaries and corners at the metal-insulator transition (MIT) for noninteracting electrons in the two-dimensional (2D) spin-orbit (symplectic) universality class. We find that…

Disordered Systems and Neural Networks · Physics 2007-05-23 H. Obuse , A. R. Subramaniam , A. Furusaki , I. A. Gruzberg , A. W. W. Ludwig