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The explosion of a white dwarf of mass 1.36 M$_\odot$ has been simulated in three dimensions with the aid of a SPH code. The explosion follows the delayed detonation paradigma. In this case the deflagration-detonation transition is induced…

Astrophysics · Physics 2009-11-07 Domingo Garcia-Senz , Eduardo Bravo

Photon-nuclear reaction in a transport model frame, namely an Extended Quantum Molecular Dynamics (EQMD) model, has been realised at the photon energy of 70-140 MeV in the quasi-deuteron (QD) regime. For an important application, we pay a…

Nuclear Theory · Physics 2018-03-22 B. S. Huang , Y. G. Ma , W. B. He

A measurement is presented of the neutron production rate in lead by high energy cosmic-ray muons at a depth of 2850 m water equivalent (w.e.) and a mean muon energy of 260 GeV. The measurement exploits the delayed coincidences between…

Neutron total reaction cross sections at 45, 50, 55, 60, 65, and 75 MeV from nuclei 12C, 28Si, 56Fe, 90Zr, and 208Pb have been measured and are compared with (microscopic) optical model predictions. The optical potentials were obtained in…

Nuclear Theory · Physics 2009-11-07 K. Amos , S. Karataglidis

The inelastic neutral reaction of neutrino on 4He is calculated microscopically, including full final state interaction among the four nucleons. The calculation is performed using the Lorentz integral transform (LIT) method and the…

Nuclear Theory · Physics 2009-11-10 Doron Gazit , Nir Barnea

The present article reports new data on the $^{48}$Ti($^{18}$O,$^{17}$O)$^{49}$Ti reaction at 275 MeV incident energy as part of the systematic research pursued within the NUMEN project. Supplementary measurements of the same reaction on…

We study the fission yield of recently predicted thermally fissile neutron-rich uranium and thorium nuclei using statistical model. The level density parameters needed for the study are evaluated from the excitation energies of temperature…

Nuclear Theory · Physics 2017-10-04 Bharat Kumar , M. T. Senthil kannan , M. Balasubramaniam , B. K. Agrawal , S. K. Patra

Experimental cross sections are presented for the 159Tb(p,xn)153,155,157,159Dy, 152,153,155,156m2,m1,g,158Tb and 153,151Gd nuclear reactions up to 65 MeV. The experimental results are compared with the recently reported experimental data…

Nuclear Experiment · Physics 2018-03-22 F. Tárkányi , A. Hermanne , F. Ditrói , S. Takács , A. V. Ignatyuk

The subject of the charged-to-neutral yield ratio for B{\bar B} and D{\bar D}pairs near their respective thresholds in e^+e^- annihilation is revisited. As previously argued for the B mesons, this ratio should exhibit a substantial…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. B. Voloshin

Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr (nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources. The nuclear recoil data from several exposures to two…

We have determined the positions of the (gamma,n) resonances and upper limits for the integrated cross sections for the (gamma,n) reactions, using data for the inverse process (n,gamma). With the aid of these data we have estimated the…

Nuclear Experiment · Physics 2012-05-11 Silviu Olariu , Agata Olariu

We present a laser-based neutron source that produces $1.8 \times 10^5$ neutrons/s with a conversion rate of $7.8 \times 10^5$ neutrons/J. Laser pulses of 12 fs and 23 mJ were focused onto a 430-nm-thick heavy water liquid sheet at a 10 Hz…

Benchmarking of evaluated nuclear data libraries was performed for $\sim 14.8$ MeV neutrons on Gallium targets. The experiments were performed at China Institute of Atomic Energy(CIAE). Solid samples of natural Gallium (3.2 cm and 6.4 cm…

Nuclear Experiment · Physics 2015-05-20 R. Han , R. Wada , Z. Chen , Y. Nie , X. Liu , S. Zhang , P. Ren , B. Jia , G. Tian , F. Luo , W. Lin , J. Liu , F. Shi , M. Huang , X. Ruan , J. Ren , Z. Zhou , H. Huang , J. Bao , K. Zhang , B. Hu

This paper presents our recent efforts to study the momentum distributions as well as the production of neutron-rich rare isotopes with heavy-ion beams in the energy region of 15 MeV/nucleon. Experimental cross sections of neutron-rich…

Nuclear Experiment · Physics 2021-03-22 S. Koulouris , G. A. Souliotis , I. Dimitropoulos , O. Fasoula , K. Palli , M. Veselsky , A. Bonasera

The yield ratios of negatively to positively charged pions ($\pi^-/\pi^+$), negatively to positively charged kaons ($K^-/K^+$), and anti-protons to protons ($\bar p/p$) produced in mid-rapidity interval in central gold-gold (Au-Au)…

High Energy Physics - Phenomenology · Physics 2020-05-12 Hai-Ling Lao , Ya-Qin Gao , Fu-Hu Liu

Experimental analyses of moderate temperature nuclear gases produced in the violent collisions of 35 MeV/nucleon$^{64}$Zn projectiles with $^{92}$Mo and $^{197}$Au target nuclei reveal a large degree of alpha particle clustering at low…

We discuss models to calculate one- and two-neutron capture reactions on light nuclei. These are applied to calculate the reaction rates of 15N(n,gamma)16N, 16N(n,gamma)17}N and 4He(2n,gamma)6He. The possible astrophysical importance is…

Nuclear Theory · Physics 2007-05-23 H. Herndl , R. Hofinger , H. Oberhummer

The neutron emission in the fragmentation of stable and radioactive Sn and La projectiles of 600 MeV per nucleon has been studied with the Large Neutron Detector LAND coupled to the ALADIN forward spectrometer at SIS. A cluster-recognition…

Excitation function of proton induced nuclear reactions on lead for production of $^{206,205,204,203,202,201g}$Bi, $^{203cum,202m,201cum}$Pb and $^{202cum,201cum,200cum,199cum}$Tl radionuclides were measured up to 36 MeV by using activation…

Nuclear Experiment · Physics 2014-11-10 F. Ditrói , F. Tárkányi , S. Takács , A. Hermanne

The yield of neutrons produced by cosmic ray muons at a shallow depth of 32 meters of water equivalent has been measured. The Palo Verde neutrino detector, containing 11.3 tons of Gd loaded liquid scintillator and 3.5 tons of acrylic served…

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