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The calculation of the energy-, density-, and isospin-dependent $\Delta$ production cross sections in nucleon-nucleon (NN) scattering $\sigma^*_{NN\rightarrow N\Delta}$ has been performed within the framework of the relativistic BUU…

核理论 · 物理学 2017-10-11 Qingfeng Li , Zhuxia Li

We deal with the systematics of one and two proton separation energies as predicted by our latest global model for the masses of nuclides developed with the use of neural networks. Among others, such systematics is useful as input to the…

核理论 · 物理学 2007-05-23 S. Athanassopoulos , E. Mavrommatis , K. A. Gernoth , J. W. Clark

The one-neutron knockout reaction 9Be(57Cr,56Cr + gamma)X has been measured in inverse kinematics with an intermediate-energy beam. Cross sections to individual states in 56Cr were partially untangled through the detection of the…

Within the concept of the dinuclear system (DNS), a dynamical model is proposed for describing the formation of superheavy nuclei in complete fusion reactions by incorporating the coupling of the relative motion to the nucleon transfer…

核理论 · 物理学 2008-11-26 Zhao-Qing Feng , Gen-Ming Jin , Jun-Qing Li , Werner Scheid

In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility…

核理论 · 物理学 2015-06-26 Bao-An Li , Che Ming Ko , Wolfgang Bauer

In this paper, the in-medium $NN\rightarrow N\Delta$ cross section is calculated in the framework of the one-boson exchange model by including the isovector mesons, i.e. $\delta$ and $\rho$ mesons. Due to the isospin exchange in the…

核理论 · 物理学 2018-12-05 Ying Cui , Yingxun Zhang , Zhuxia Li

Recently observed rare heavy ion fusion processes, where the entire available energy is carried away by a single pion, is an example of extreme collectivity in nuclear reactions. We calculate the cross section in the approximation of sudden…

核理论 · 物理学 2008-11-26 Alexander Volya , Scott Pratt , Vladimir Zelevinsky

Final-state interactions in the response of a many-body system to an external probe delivering large momentum are normally described using the eikonal approximation, for the trajectory of the struck particle, and the frozen approximation,…

核理论 · 物理学 2008-11-26 M. Petraki , E. Mavrommatis , O. Benhar , J. W. Clark , A. Fabrocini , S. Fantoni

The antikaon production cross section from nucleon-nucleon reactions near threshold is studied in a meson exchange model. We include both pion and kaon exchange, but neglect the interference between the amplitudes. In case of pion exchange…

核理论 · 物理学 2009-10-30 A. Sibirtsev , W. Cassing , C. M. Ko

The nuclear photo-emulsion technique is used to study the information carried by the medium energy nucleons produced in heavy ion collisions. Multiplicity, energies as well as the angular distribution of this type of particles are measured.…

高能物理 - 唯象学 · 物理学 2007-05-23 M. T. Hussein , N. M. Hassan , N. M. Sadek , Jamila Elsweedy

Electromagnetic strength functions of halo nuclei exhibit universal features that can be described in terms of characteristic scale parameters. For a nucleus with nucleon+core structure the reduced transition probability, as determined,…

核理论 · 物理学 2007-05-23 S. Typel , G. Baur

The experimental thermal neutron cross sections of the twenty proteinogenic amino acids have been measured over the incident-neutron energy range spanning from 1 meV to 10 keV and data have been interpreted using the multi-phonon expansion…

We analyze the production cross sections and isotopic distributions of projectile-like residues in the reactions $^{112}$Sn + $^{112}$Sn and $^{124}$Sn + $^{124}$Sn at an incident beam energy of 1 GeV/nucleon measured with the FRS fragment…

核理论 · 物理学 2015-03-06 H. Imal , A. Ergun , N. Buyukcizmeci , R. Ogul , A. S. Botvina , W. Trautmann

The proton-proton momentum correlation function from different rapidity regions are systematically investigated for the Au + Au collisions at different impact parameters and different energies from 400$A$ MeV to 1500$A$ MeV in the framework…

核理论 · 物理学 2018-03-26 Ting-Ting Wang , Yu-Gang Ma , Chun-Jian Zhang , Zheng-Qiao Zhang

Several observables of unbound nucleons which are to some extent sensitive to the medium modifications of nucleon-nucleon elastic cross sections in neutron-rich intermediate energy heavy ion collisions are investigated. The splitting effect…

核理论 · 物理学 2009-11-11 Qingfeng Li , Zhuxia Li , Sven Soff , Marcus Bleicher , Horst Stoecker

We systematically study total reaction cross sections of carbon isotopes with N=6-16 on a proton target for wide range of incident energies, putting an emphasis on the difference from the case of a carbon target. The analysis includes the…

核理论 · 物理学 2014-11-18 B. Abu-Ibrahim , W. Horiuchi , A. Kohama , Y. Suzuki

We call "projectile fragmentation" of neutron halo nuclei the elastic breakup (diffraction) reaction, when the observable studied is the neutron-core relative energy spectrum. This observable has been measured in relation to the Coulomb…

核理论 · 物理学 2017-08-23 Guillaume Blanchon , A. Bonaccorso , D. M. Brink , A. García-Camacho , N. Vinh Mau

Total cross sections for neutron scattering with energies between 10 and 600 MeV and from nine nuclei spanning the mass range from 6Li to 238U have been analyzed using a simple function of three parameters. The values of those parameters…

核理论 · 物理学 2009-11-10 P. K. Deb , K. Amos

The odd-even staggering of neighboring nuclear masses is very useful in calculating local mass relations and nucleon-pair correlations. During the past decades, there has been an increasing interest in the odd-even features of the mass…

核理论 · 物理学 2020-05-14 B. B. Jiao

Nucleon self-energies and interaction potentials in supernova (SN) matter, which are known to have an important effect on nucleosynthesis conditions in SN ejecta are investigated. Corresponding weak charged-current interaction rates with…

核理论 · 物理学 2015-05-22 Matthias Hempel