Chirality of Nuclear Rotation

Dimitrov, V. I.; Frauendorf, S.; Dönau, F.

doi:10.1103/physrevlett.84.5732

Cited by 221 publications

(223 citation statements)

References 10 publications

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“…Numerous efforts have been devoted to the development of the PRM and TAC approaches. Chiral rotation has been studied by the Strutinsky shell correction TAC (SCTAC) method with a hybrid potential which combines the spherical Woods-Saxon single-particle energies and the deformed part of the Nilsson potential [21,22]. Recently, chiral TAC solutions have also been found in N = 75 isotones within the self-consistent Skyrme Hartree-Fock cranking model [23,24].…”

Section: Introductionmentioning

confidence: 99%

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

Zhang

Wang

et al. 2008

Physics of Unstable Nuclei

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A particle rotor model (PRM) with a quasi-proton and a quasi-neutron coupled with a triaxial rotor is developed and applied to study chiral doublet bands with configurations of a h 11/2 proton and a h 11/2 quasi-neutron. With pairing treated by the BCS approximation, the present quasiparticle PRM is aimed at simulating one proton and many neutron holes coupled with a triaxial rotor. After a detailed analysis of the angular momentum orientations, energy separation between the partner bands, and behavior of electromagnetic transitions, for the first time we find aplanar rotation or equivalently chiral geometry beyond the usual one proton and one neutron hole coupled with a triaxial rotor.

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Section: Introductionmentioning

confidence: 99%

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

Zhang

Wang

et al. 2008

Physics of Unstable Nuclei

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“…For the TQPTR, the ratio between the moments of inertia have been calulated by cracking about the three principle axes using the parameters reported in Ref. [2]. In the IBFFM calculation, the proton and neutron are coupled to the triaxial core as described in Ref.…”

Section: Prmentioning

confidence: 99%

“…Pairs of bands, presumably due to the breaking of the chiral symmetry in triaxial nuclei, have been found in the mass regions A∼130 [4][5][6][7][8][9], A∼105 [10][11][12][13][14][15] and A∼195 [16][17][18], and A∼80 [19]. There is also a significant interest from theoretical point of view to investigate the chiral phenomenon [2,[20][21][22][23][24]. However, only in few cases ( 126 Cs [25], 128 Cs [8] and 198 Tl [17]) the systematic properties [26] of the chiral bands, which originate from the underlying symmetry, were confirmed including the transition from chiral vibrations to static chirality in ( 135 Nd) [9].…”

Section: Introductionmentioning

confidence: 99%

“…Examples of systems demonstrating chirality are present in chemistry, biology, high energy physics, etc. Chirality has recently been proposed as a novel feature of rotating nuclei [1][2][3]. A spontaneous breaking of the chiral symmetry can take place for configurations where the angular momenta of the valence protons, valence neutrons, and the core are mutually perpendicular [1].…”

Section: Introductionmentioning

confidence: 99%

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Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems

Tonev

Yavahchova

Angelis

et al. 2016

EPJ Web of Conferences

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Abstract. Two odd-odd nuclei from the A ∼ 100 and A ∼ 130 regions, namely 102 Rh and 134 Pr have been studied in search for chiral doublet bands via 94 Zr( 11 B,3n) 102 Rh and 119 Sn( 19 F,4n) 134 Pr reactions, respectively. Two nearly degenerate bands built on the πg 9/2 ⊗ νh 11/2 configuration have been identified in 102 Rh and on the πg 11/2 ⊗ νh 11/2 configuration for 134 Pr. Lifetimes of excited nuclear states were measured using Dopplershift attenuation method and recoil distance Doppler-shift method. The deexciting gamma rays were registered by the Indian National Gamma Array for 102 Rh and using the EUROBALL IV detector array with an inner Bismuth Germanate (BGO) ball for 134 Pr, respectively. Polarization and angular correlation measurements have been performed to establish the spin and parity assignments for these bands. The derived reduced transition probabilities are compared to the predicitons of the two quasiparticles + triaxial rotor and interacting boson fermion-fermion models.

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“…The existence of the hypothetical left-and right-handed intrinsic nuclear states implies the existence of two nearly degenerate chiral partner bands with the same parity and similar electromagnetic properties, like the M 1 and E2 spectroscopic moments, and the intra-and inter-band M 1 and E2 transitions. Such states with the broken chiral symmetry can be found using the Tilted Axis Cranking (TAC) approach to the odd-odd nuclei [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Odd-odd nuclei as the core-particle-hole systems and chirality

et al. 2011

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Abstract. Odd-odd nuclei treated as core-particle-hole systems with various collective cores and various particle-hole configurations are investigated within the Core-Particle-Hole Coupling (CPHC) model. A new symmetry, called the S-symmetry, is identified as a combination of the α-parity of the collective core and the proton-neutron symmetry of the valence proton and neutron in particle-hole configurations involving single-particle states with the same quantum numbers. It is found that the S-symmetric odd-odd nuclei show signatures which are usually considered as fingerprints of nuclear chirality, namely doublet band structure with a particular pattern of electromagnetic transitions. Reported results imply that the rigid rotor with a symmetric valence proton-neutron configuration is only a special case of the system with the novel S-symmetry. Therefore, it is an open question whether the chiral fingerprints discussed so far identify uniquely the orthogonal coupling of angular momentum in the intrinsic system.

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Chirality of Nuclear Rotation

Abstract: It is shown that the rotating mean field of triaxial nuclei can break the chiral symmetry. Two nearly degenerate DeltaI=1 rotational bands originate from the left-handed and right-handed solutions.

Cited by 221 publications

References 10 publications

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

Chiral Bands for Quasi-Proton and Quasi-Neutron Coupling With a Triaxial Rotor

Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems

Odd-odd nuclei as the core-particle-hole systems and chirality

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