中文
相关论文

相关论文: The intermediate neutron capture process: IV. Impa…

200 篇论文

Nuclear transparency in the (e,e'p) reaction for 135 < Tp < 800 MeV is investigated using the distorted wave approximation. Calculations using density-dependent effective interactions are compared with phenomenological optical potentials.…

核理论 · 物理学 2008-11-26 James J. Kelly

The astrophysical $S$ factor for the radiative proton capture process on the $^{15}\mathrm{N}$ nucleus, i.e., $^{15}\mathrm{N}(p, \gamma)^{16}\mathrm{O}$, at stellar energies are studied within the framework of the cluster effective field…

核理论 · 物理学 2024-01-31 Sangyeong Son , Shung-Ichi Ando , Yongseok Oh

Fundamental differences in the prediction of reaction rates with intermediate and heavy target nuclei compared to the ones with light nuclei are discussed, with special emphasis on stellar modifications of the rates. Ground and excited…

高能天体物理现象 · 物理学 2013-03-28 T. Rauscher

The relationship among nuclear structure, the weak processes in nuclei, and astrophysics becomes quite apparent in supernova explosion and nucleosynthesis studies. In this brief article, I report on progress made in the last few years on…

核理论 · 物理学 2009-11-06 D. J. Dean

The extent of nucleosynthesis in models of type I X-ray bursts and the associated impact on the energy released in these explosive events are sensitive to nuclear masses and reaction rates around the $^{64}$Ge waiting point. Using the well…

太阳与恒星天体物理 · 物理学 2016-02-17 Y. H. Lam , J. J. He , A. Parikh , H. Schatz , B. A. Brown , M. Wang , B. Guo , Y. H. Zhang , X. H. Zhou , H. S. Xu

The observable consequences of a nova outburst depend sensitively on the details of the thermonuclear runaway which initiates the outburst. One of the more important sources of uncertainty is the nuclear reaction data used as input for the…

天体物理学 · 物理学 2009-10-31 W. Raphael Hix , Michael S. Smith , Anthony Mezzacappa , Sumner Starrfield , Donald L. Smith

We investigate the radial stability of neutron stars under conditions where their composition may or may not remain in chemical equilibrium during oscillations. Using different equations of state that include nucleons, hyperons, and/or…

高能天体物理现象 · 物理学 2024-12-31 Martin O. Canullan-Pascual , German Lugones , Milva G. Orsaria , Ignacio F. Ranea-Sandoval

Nuclear uncertainties in the production of $p$ nuclei in massive stars have been quantified in a Monte Carlo procedure. Bespoke temperature-dependent uncertainties were assigned to different types of reactions involving nuclei from Fe to…

高能天体物理现象 · 物理学 2016-10-14 T. Rauscher , N. Nishimura , R. Hirschi , G. Cescutti , A. St. J. Murphy , A. Heger

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We calculate direct neutron capture on the even-even isotopes $^{124-145}$Sn and $^{208-238}$Pb with energy levels, masses, and…

核理论 · 物理学 2008-11-26 T. Rauscher , R. Bieber , H. Oberhummer , K. -L. Kratz , J. Dobaczewski , P. Moller , M. M. Sharma

As the sensitivity and uncertainty analysis of nuclear system can provide more confident bounds for the Best-estimate Prediction used to assess the performance and safety of nuclear plant, the uncertainty and sensitivity analysis has been a…

应用物理 · 物理学 2017-04-24 JiaYi Xu , Xu Bo Ma , Fan Lu , Yi Xue Chen

Neutron-capture elements, those with Z > 35, are the least well-understood in terms of nucleosynthesis and formation environments. The rapid neutron-capture, or r-process, elements are formed in the environments and/or remnants of massive…

太阳与恒星天体物理 · 物理学 2016-06-22 Jamie C. Overbeek , Eileen D. Friel , Heather R. Jacobson

Abundances of Mo isotopes predicted by stellar models of the s process are, except for 95Mo, in good agreement with data from single grains of mainstream presolar SiC. Because the meteorite data seemed sound and no reasonable modification…

天体物理学 · 物理学 2008-09-17 P. E. Koehler , J. A. Harvey , K. H. Guber , D. Wiarda

We explore the sensitivity of the nucleosynthesis of intermediate mass elements (28 < A < 80) in supernovae derived from massive stars to the nuclear reaction rates employed in the model. Two standard sources of reaction rate data (Woosley…

天体物理学 · 物理学 2009-10-30 R. D. Hoffman , S. E. Woosley , T. A. Weaver , T. Rauscher , F. -K. Thielemann , .

The abundances of the isotopes of the elements from C to Al produced by the non-explosive CNO, NeNa and MgAl modes of hydrogen burning, as well as by helium burning, are calculated with the thermonuclear rates recommended by the European…

天体物理学 · 物理学 2007-05-23 M. Arnould , S. Goriely , A. Jorissen

Nuclear reaction data required for astrophysics and applications is incomplete, as not all nuclear reactions can be measured or reliably predicted. Neutron-induced reactions involving unstable targets are particularly challenging, but often…

In the presented review we discuss the problem of extraction the parameters of nuclear matter and charge distribution in stable and unstable isotopes. A substantial amount of information on the nuclear radii and other distribution…

核理论 · 物理学 2015-03-18 G. D. Alkhazov , I. S. Novikov , Yu. Shabelski

Our understanding of the rapid neutron capture nucleosynthesis process in universe depends on the reliability of nuclear mass predictions. Initiated by the newly developed mass table in the relativistic mean field theory (RMF), in this…

核理论 · 物理学 2017-05-12 Sun Baohua , Meng Jie

STARLIB is a next-generation, all-purpose nuclear reaction-rate library. For the first time, this library provides the rate probability density at all temperature grid points for convenient implementation in models of stellar phenomena. The…

太阳与恒星天体物理 · 物理学 2013-07-11 A. L. Sallaska , C. Iliadis , A. E. Champagne , S. Goriely , S. Starrfield , F. X. Timmes

In this review, we emphasize the interplay between astrophysical observations, modeling, and nuclear physics laboratory experiments. Several important nuclear cross sections for astrophysics have long been identified e.g.…

核实验 · 物理学 2016-05-26 Alain Coc , Fairouz Hammache , Juergen Kiener

Nuclear formation cross sections are reported for 26 radionuclides, measured with 40 to 200 MeV proton irradiations of terbium foils. These data are relevant to the production of medically relevant radionuclides (e.g., 152Tb, 155Tb, 155Eu,…

‹ 上一页 1 8 9 10 下一页 ›