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相关论文: Analysis of Intermediate-Energy Nucleus-Nucleus Sp…

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A new neutron SIMulation program based on the versatile GEANT4 toolkit, neuSIM4, has been developed to describe interactions of neutrons in the NE213 liquid scintillator from 0.1 to 3000 MeV. neuSIM4 is designed to accommodate complicated…

仪器与探测器 · 物理学 2024-07-18 J. Park , F. C. E. Teh , M. B. Tsang , K. W. Brown , Z. Chajecki , B. Hong , T. Lokotko , W. G. Lynch , J. Wieske , K. Zhu

We estimate lepton capture and emission rates, as well as neutrino energy loss rates, for nuclei in the mass range A=65-80. These rates are calculated on a temperature/density grid appropriate for a wide range of astrophysical applications…

天体物理学 · 物理学 2009-11-07 Jason Pruet , George M. Fuller

A method is proposed for the experimental measurement of neutron separation energies for nuclei far from stability. The procedure is based on determining cross sections for the production of nuclei, by projectile fragmentation, for which…

核实验 · 物理学 2009-11-10 W. A. Friedman , M. B. Tsang

The spallation reactions are a type of nuclear reaction which occur in space by interaction of the cosmic rays with interstellar bodies. The first spallation reactions induced with an accelerator took place in 1947 at the Berkeley cyclotron…

核实验 · 物理学 2016-05-31 J. -C. David

The CGMF code implements the Hauser-Feshbach statistical nuclear reaction model to follow the de-excitation of fission fragments by successive emissions of prompt neutrons and $\gamma$ rays. The Monte Carlo technique is used to facilitate…

核理论 · 物理学 2021-08-09 P. Talou , I. Stetcu , P. Jaffke , M. E. Rising , A. E. Lovell , T. Kawano

The production of strange particles (kaons, hyperons) and hypernuclei in light charged particle induced reactions in the energy range of a few GeV (2-15 GeV) has become a topic of active research in several facilities (e.g., HypHI and PANDA…

核理论 · 物理学 2018-11-06 J. Hirtz , J. -C. David , A. Boudard , J. Cugnon , S. Leray , I. Leya , D. Mancusi

Monte Carlo simulations with the CRISP code were conducted to study spallation and fission fragment distributions induced by intermediate- and high-energy protons and photons on actinide and pre-actinide nuclei. The model accounts for…

综合物理 · 物理学 2025-09-12 Sun Wenming

Light nuclei production is expected to be sensitive to baryon density fluctuations and can be used to probe the signatures of QCD critical point and/or a first-order phase transition in heavy-ion collisions. In this proceedings, we present…

核实验 · 物理学 2022-09-15 Hui Liu

Neutron-induced fission of $^{237}$Np has been measured over a wide range of incident neutron energies using a twin Frisch-gridded ionization chamber (TFGIC) and a thin-backed $^{237}$Np target. These measurements were performed at the Los…

Spallation residues and fission fragments from 1A GeV 238U projectiles irradiating a liquid hydrogen target were investigated by using the FRagment Separator at GSI for magnetic selection of reaction products including ray-tracing,…

Proton-nucleus collisions (p+A) at LHC energies provide a rigorous test of the Color Glass Condensate (CGC), a model proposed to describe the high energy limit of Quantum Chromodynamics. In the CGC the average multiplicity of charged…

高能物理 - 唯象学 · 物理学 2013-11-04 Adam Bzdak , Vladimir Skokov

The production of fast neutrons (1 MeV - 1 GeV) in high energy muon-nucleus interactions is poorly understood, yet it is fundamental to the understanding of the background in many underground experiments. The aim of the present experiment…

高能物理 - 实验 · 物理学 2015-06-25 V. Chazal , F. Boehm , B. Cook , H. Henrikson , G. Jonkmans , A. Paic , N. Mascarenhas , P. Vogel , J. -L. Vuilleumier

We present new parametrisations of energy spectra of secondary particles, $\pi$-mesons, gamma-rays, electrons and neutrinos, produced in inelastic proton-proton collisions. The simple analytical approximations based on imulations of…

天体物理学 · 物理学 2014-10-13 S. R. Kelner , F. A. Aharonian , V. V. Bugayov

For the past several years, a major effort has been undertaken at Los Alamos National Laboratory (LANL) to develop the transport code MCNP6, the latest LANL Monte-Carlo transport code representing a merger and improvement of MCNP5 and…

核实验 · 物理学 2015-06-05 S. G. Mashnik , J. S. Bull , H. G. Hughes , R. E. Prael , A. J. Sierk

The sensitivity of underground experiments searching for rare events such as dark matter, neutrino interactions or several beyond the standard model phenomena is often limited by the background caused by neutrons from spontaneous fission…

核实验 · 物理学 2025-07-22 Mihaela Parvu , Piotr Krawczun , Vitaly A. Kudryavtsev

The NA60 experiment has studied low-mass muon pair production in proton-nucleus collisions with a system of Be, Cu, In, W, Pb and U targets using a 400 GeV/$c$ proton beam at the CERN SPS. The mass spectrum is well described by the…

高能物理 - 实验 · 物理学 2015-05-30 Antonio Uras , NA60 Collaboration

The neutron emission in projectile fragmentation at relativistic energies was studied with the Large-Area-Neutron-Detector LAND coupled to the ALADIN forward spectrometer at the GSI Schwerionen-Synchrotron (SIS). Stable 124Sn and…

I discuss the use of light cone variables to compute the nucleonic and mesonic components of nuclear wave functions. A Lagrangian and its energy-momentum tensor $T^{^+\mu}$ is used to define the total momentum operators $P^\mu$. The aim is…

核理论 · 物理学 2017-08-23 Gerald A. Miller

The inclusive K+ mesons production in proton-nucleus collisions in the near threshold and subthreshold energy regimes is analyzed with respect to the one-step (pN->K+YN, Y=Lambda,Sigma) and the two-step (pN->NNpi, NN2pi; piN->K+Y)…

核理论 · 物理学 2009-10-30 S. V. Efremov , E. Ya. Paryev

Quarkonia, i.e. bound states of $b\bar{b}$ and $c\bar{c}$ quarks, are powerful observables to study the properties of nuclear matter under extreme conditions. The formation of a Quark-Gluon Plasma (QGP), which is predicted by lattice QCD…

高能物理 - 实验 · 物理学 2019-02-20 Pascal Dillenseger