Level structure in the transitional nucleus 
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Li, C. B.; Wu, X. G.; Zheng, Y.; Jin, Yan-Jun; L., H.; Li, G. S.; Zhong, Jian; Zhu, B. J.; Li, T. X.; Gao, Yan-Xiang; Guan, X.-X.; Liu, J. Q.

doi:10.1103/physrevc.97.034331

Cited by 11 publications

(20 citation statements)

References 65 publications

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“…Besides the nuclear mean-field potential, a short range stochastic scattering between two particles is also necessary in the transport model to compensate the strong repulsive short-range component of the nuclear interaction. It is well known that the in-medium nucleon-nucleon elastic cross section should be smaller than the free one [49][50][51]. Thus, in the present version of the UrQMD model, a density and momentum dependent in-medium correction factor on the free elastic cross section is applied.…”

Section: The Urqmd Modelmentioning

confidence: 99%

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Wang

Steinheimer

et al. 2018

Phys. Rev. C

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Fluctuations of the baryon number in relativistic heavy-ion collisions are a promising observable to explore the structure of the QCD phase diagram. The cumulant ratios in heavy ion collisions at intermediate energies (√ sNN < 7 GeV) have not been studied to date. We investigate the effects of mean field potential and clustering on the cumulant ratios of baryon and proton number distributions in Au+Au collisions at beam energy of 1.23 GeV/nucleon as measured by the HADES Collaboration at GSI. Ultrarelativistic Quantum Molecular Dynamics (UrQMD) and the JAM model are used to calculate the cumulants with different mean field potentials. It is found that the cumulant ratios are strongly time dependent. At the early stage, the effects of the potentials on the fluctuations of the particle multiplicity in momentum space are relatively weak. The mean fields enhance the fluctuations during the expansion stage, especially for small rapidity acceptance windows. The enhancement of cumulant ratios for free protons is strongly suppressed as compared to that for all baryons. The mean field potentials and the clustering play an important role for the measured cumulant ratios at intermediate energy.

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Section: The Urqmd Modelmentioning

confidence: 99%

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Wang

Steinheimer

et al. 2018

Phys. Rev. C

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“…In addition, comparing the triaxial deformation in RMF approach without rotation in Ref. [30], it is found that considering or without considering the rotational mean field, i.e., the TAC-RMF and RMF calculations both support the existence of chirality in 125,127,129,131 Cs.…”

Section: Theoretical Calculationmentioning

confidence: 98%

“…On the other hand, the adiabatic and configuration-fixed constrained triaxial relativistic mean-field (RMF) approach has been performed to study the triaxial deformation of odd-A 125,127,129,131 Cs [30]. The existence of chirality, especially the MχD phenomenon, is demonstrated and expected based on different high-j particle-hole configurations and triaxial deformations.…”

Section: Introductionmentioning

confidence: 99%

Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in Cs125,127,129,131

Guo

Sun

et al. 2019

Phys. Rev. C

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The experimental features of positive-parity doublet bands in the odd-A cesium isotopes 125,127,129,131 Cs, including angular momentum alignment, energy staggering,are studied systematically and compared to those of the candidate chiral bands in the adjacent odd-odd Cs isotopes. The configuration assignments and the dynamics of these bands are discussed. The self-consistent tilted axis cranking relativistic mean-field calculations are performed with configuration reassigned to these bands. The experimental level schemes of four nuclei are well reproduced, and the calculations also show four nuclei have obvious triaxial deformations and thus support the candidate chiral doublet bands in 125,127,129,131 Cs.

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“…The UrQMD model has been widely and successfully used to study pp, pA, and AA collisions within a large energy range from the Fermi energy up to the CERN Large Hadron Collider (LHC) energies [13,14]. It has been found that with a proper set of the in-medium nucleon-nucleon cross section, Pauli blocking, as well as the clustering process, the collective flow, stopping observable, as well as fragment mass distribution in intermediate energy HICs can be reproduced fairly well [15,16,17,18]. For studying HICs at intermediate energies, the following density and momentum dependent potential has been widely used [19,20,21],…”

Section: The Urqmd Model and Cumulants In Central Au+au Collision At mentioning

confidence: 99%

Mean-field potential effects in the cumulants of baryons from central Au+Au collision at Elab= 1.23 GeV/nucleon

Wang

2019

AIP Conference Proceedings

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The cumulants of baryon multiplicity distribution in relativistic heavy-ion collisions (HICs) have attracted considerable attention recently. It has been conjectured that they may serve as a promising observable to detect the critical end point in the QCD phase diagram, while the cumulants in HICs at intermediate energies have not been widely studied to date. How to interpret the cumulants data at intermediate energies and compare with the data at relativistic energies is now being actively discussed. Both meam-field potential and clustering are highly important to HICs at intermediate energies. In this talk, we discuss these effects on the cumulant ratios of baryon number distributions in Au+Au collisions at beam energies of 1.23 GeV/nucleon which have been currently performed by the HADES Collaboration at GSI. Within the newest version of the ultrarelativistic quantum molecular dynamics (UrQMD) model, calculations with different mean field potentials as well as without mean field potential are performed. It is found that the mean field potential enhances fluctuations in the momentum space during the expanding stage, especially in a small rapidity acceptance window. The enhancement of cumulant ratios for free protons is suppressed compared with that for all baryons.

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Level structure in the transitional nucleus Tl199

Cited by 11 publications

References 65 publications

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Systematic investigations of positive-parity doublet bands with three-quasiparticle configurations in Cs125,127,129,131

Mean-field potential effects in the cumulants of baryons from central Au+Au collision at Elab= 1.23 GeV/nucleon

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