Multinucleon transfer in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mmultiscripts><mml:mi>Xe</mml:mi><mml:mprescripts /><mml:none /><mml:mn>136</mml:mn></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi>Pb</mml:mi><mml:mprescripts /><mml:none /><mml:mn>208</mml:mn></mml:mmultiscripts></mml:mrow></mml:math>reaction

Li, Cheng; Zhang, Fan; Li, Jingjing; Zhu, Long; Tian, Junlong; Wang, Ning; Zhang, Feng-Shou

doi:10.1103/physrevc.93.014618

Cited by 82 publications

(119 citation statements)

References 56 publications

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“…Recently, heavy-ion multi nucleon transfer near the Coulomb barrier has emerged as a potentially powerful tool for moving south and southeast of 208 Pb. Some calculations have suggested the yields are high enough for detailed spectroscopy, which with current technology means production cross-sections of 100's µb [12][13][14]. In this work we used heavy-ion multi-nucleon transfer involving a 136 Xe beam and a 208 Pb target at 785 MeV ∼ 9 % above the Coulomb barrier.…”

Section: Introductionmentioning

confidence: 99%

γ -ray spectroscopy of Tl209

et al. 2017

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States in 209 Tl were populated using a multi-nucleon transfer reaction with a 136 Xe beam impinging on a thick 208 Pb target at E = 785 MeV. The beam was pulsed at 825 ns intervals in order to perform isomer decay spectroscopy. The known J π = 17/2 + isomer in 209 Tl was located at 1228(4) keV and measured to have a half-life of T 1/2 = 146(10) ns. A second isomer with J π = 13/2 + was found to have T 1/2 = 14(5) ns. The previously suggested low-energy "X" and "Y" transitions were found to have energies 57(2) and 47(2) keV respectively, while the measurement of conversion coefficients and a new decay path make the spin assignments below the isomers experimentally firm. Correlating the delayed γ-transitions with the prompt beam flash allowed the decay of states above the isomer to be found. The longer-lived isomer represents full alignment of the simplest two-particle, one-hole configuration, and illuminates the remarkably weak coupling of the proton hole to the 210 Pb core.

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Section: Introductionmentioning

confidence: 99%

γ -ray spectroscopy of Tl209

et al. 2017

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“…On the other hand, different theoretical approaches have also been developed: e.g. a dynamical model based on Langevin-type equations of motion [5][6][7][8][9][10][11][12], dinuclear system model (DNS) [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], and improved quantum molecular dynamics model (ImQMD) [29][30][31][32][33][34][35][36][37][38]. Although those models can describe both peripheral and damped collisions, including fusion and quasifission (QF) processes, they are to some extent empirical containing model parameters.…”

Section: Introductionmentioning

confidence: 99%

Microscopic description of production cross sections including deexcitation effects

Sekizawa

2017

Phys. Rev. C

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Background: At the forefront of the nuclear science, production of new neutron-rich isotopes is continuously pursued at accelerator laboratories all over the world. To explore the currently-unknown territories in the nuclear chart far away from the stability, reliable theoretical predictions are inevitable.Purpose: To provide a reliable prediction of production cross sections taking into account secondary deexcitation processes, both particle evaporation and fission, a new method called TDHF+GEMINI is proposed, which combines the microscopic time-dependent Hartree-Fock (TDHF) theory with a sophisticated statistical compoundnucleus deexcitation model, GEMINI++.Methods: Low-energy heavy ion reactions are described based on three-dimensional Skyrme-TDHF calculations. Using particle-number projection method, production probabilities, total angular momenta, and excitation energies of primary reaction products are extracted from the TDHF wavefunction after collision. Production cross sections for secondary reaction products are evaluated employing GEMINI++. Results are compared with available experimental data and widely-used GRAZING calculations. Results:The method is applied to describe cross sections for multinucleon transfer processes in MeV) reactions at energies close to the Coulomb barrier. It is shown that the inclusion of secondary deexcitation processes, which are dominated by neutron evaporation in the present systems, substantially improves agreement with the experimental data. The magnitude of the evaporation effects is very similar to the one observed in GRAZING calculations. TDHF+GEMINI provides better description of the absolute value of the cross sections for channels involving transfer of more than one protons, compared to the GRAZING results. However, there remain discrepancies between the measurements and the calculated cross sections, indicating a limit of the theoretical framework that works with a single mean-field potential. Possible causes of the discrepancies are discussed. Conclusions:In order to perfectly reproduce experimental cross sections for multinucleon transfer processes, one should go beyond the standard self-consistent mean-field description. Nevertheless, the proposed method will provide valuable information to optimize production mechanisms of new neutron-rich nuclei through its microscopic, non-empirical predictions.

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“…Generally, these interactions can build up complexly nano‐ and micro‐scaled super‐molecular systems with interesting morphologies, containing net, fiber, dendrimer, and other regular geometry since removing the solvent . Mono‐layer adsorption films through self‐assembly are reported extensively in previous works, illustrating that adsorption is a key element for an excellent corrosion inhibitor to keep far the surface of metal from corrosive surroundings. However, mono‐layer adsorption films are easily undergoing desorption due to the weak interaction between corrosion inhibitor and metal surface.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, scanning electron microscope (SEM), X‐ray diffraction (XRD), and a tomic force microscope (AFM) have been used to study the metal surface. The possible adsorption behavior of BTA‐IM inhibitor is proposed (Figure b), the BTA‐IM molecules are firstly adsorbed on metal surface and spontaneously aggregated on the metal surface through hydrogen bonds . Therefore, the multi‐layer films may be formed on the surface of metal, suppressing the invading of aggressive medium.…”

Section: Introductionmentioning

confidence: 99%

Nano‐scaled and aggregated films to protect carbon steel from corrosion in hydrochloric acid

Luo

et al. 2018

Materials & Corrosion

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An efficient corrosion inhibitor named BTA‐IM is reported in this contribution. The inhibition performance of BTA‐IM for carbon steel in 1 M HCl is investigated and the possible inhibition mechanism is proposed. According to weight‐loss experiments, the inhibition efficiency of BTA‐IM can reach to 98%. Secondly, the morphology investigation illustrates that the nano‐scaled, dendrimer‐like, and multi‐layer films cover the metal surface regularly and compactly through self‐assembly. Thirdly, the thickness of the films on surface of metal is gradually increased with the increasing dosage of inhibitor, and the aggregated films are obtained. Possibly, the aggregated films are born of absorption films and the increased concentration of BTA‐IM, giving rise to the regular and compact films.

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Multinucleon transfer in theXe136+Pb208reaction

Cited by 82 publications

References 56 publications

γ -ray spectroscopy of Tl209

γ -ray spectroscopy of Tl209

Microscopic description of production cross sections including deexcitation effects

Nano‐scaled and aggregated films to protect carbon steel from corrosion in hydrochloric acid

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