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A kinematically complete measurement of the four-body breakup reaction d+2H-->2ps+2ns --> p +p +n +n has been performed at 15 MeV deuteron beam of the SINP MSU. The two protons and neutron were detected at angles close to those of emission…

核实验 · 物理学 2017-04-05 E. Konobeevsky , A. Kasparov , M. Mordovskoy , S. Zuyev , V. Lebedev , A. Spassky

The differential cross section and deuteron analysing powers of the dp -> {pp}n charge-exchange reaction have been measured with the ANKE spectrometer at the COSY storage ring. Using a deuteron beam of energy 1170 MeV, data were obtained…

The (pi+,pd), and (pi+,dd) reactions were investigated with pions of 100 and 165 MeV kinetic energy on 6Li and 12C targets. In comparison with previously published (pi+,pp) data on the same targets and at the same beam energies, kinematic…

Calculations have been performed for the $^{16}$O($\gamma$,pn) and the $^{16}$O($\gamma$,pp) reaction in the photon-energy range $E_{\gamma}$ = 60-300 MeV. Besides the contribution from the more common photoabsorption on the pionic degrees…

核理论 · 物理学 2009-10-22 L. Machenil , M. Vanderhaeghen , J. Ryckebusch , M. Waroquier

The cross section of the radiative proton capture reaction on the drip line nucleus 12N was investigated using the Asymptotic Normalization Coefficient (ANC) method. We have used the 14N(12N,13O)13C proton transfer reaction at 12…

The neutron capture yield of 165Ho have been measured at the Back-streaming White neutron beam line (Back-n) of the China Spallation Neutron Source (CSNS) using a 4{\pi} BaF2 Gamma Total Absorption Facility (GTAF). The resonance shapes in…

Total radiative thermal neutron-capture $\gamma$-ray cross sections for the $^{182,183,184,186}$W isotopes were measured using guided neutron beams from the Budapest Research Reactor to induce prompt and delayed $\gamma$ rays from elemental…

The Coulomb-breakup method to extract the cross section for neutron radiative capture at astrophysical energies is analyzed in detail. In particular, its sensitivity to the description of the neutron-core continuum is ascertained. We…

核理论 · 物理学 2018-07-23 Pierre Capel , Yvan Nollet

Light radioactive nuclei play an important role in many astrophysical environments. Due to very low cross sections of some neutron and proton capture reactions by these radioactive nuclei at energies of astrophysical interest, direct…

核理论 · 物理学 2014-11-20 V. Guimaraes , C. A. Bertulani

The structure of nuclei around the neutron-rich nucleus 132Sn is of particular interest due to the vicinity of the Z = 50 and N = 82 shell closures and the r-process nucleosynthetic path. Four states in 131Sn with a strong…

Within the framework of the modified potential cluster model with the forbidden states and the classification of states according to Young tableaux the possibility of describing the available experimental data for the total reaction cross…

核理论 · 物理学 2017-11-27 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov

The T-noninvariant transverse polarization of neutrons is considered for muon capture by a 6-Li nucleus with decay into a quasistationary 2+ state of the three particle alpha+n+n continuum. This polarization is orthogonal to the plane…

核理论 · 物理学 2007-05-23 A. L. Barabanov

At the Karlsruhe and Tuebingen 3.75 MV Van de Graaff accelerators the thermonuclear 50Ti(n,gamma)51Ti(5.8 min) cross section was measured by the fast cyclic activation technique via the 320.852 and 928.65 keV gamma-ray lines of the…

核实验 · 物理学 2007-05-23 P. V. Sedyshev , P. Mohr , H. Beer , H. Oberhummer , Yu. P. Popov , W. Rochow

The existing experimental data on the d(n,p)nn and d(p,n)pp cross sections in the forward direction are reviewed in terms of the Dean sum rule. It is shown that the measurement of the ratio of the charge exchange on the deuteron to that on…

核实验 · 物理学 2008-11-26 Francois Lehar , Colin Wilkin

We present a method to calculate neutron scattering cross sections for deformed nuclei using many--body wavefunctions described with multiple reference states. Nuclear states are calculated with the generator coordinate method using a low…

核理论 · 物理学 2025-09-08 J. Boström , J. Rotureau , B. G. Carlsson , A. Idini

The main features of nuclear reactions with participation of baryon resonances ($\Delta$(1232), S(1535) and $\Lambda$(1405)), which are interpreted as a manifestation of the bound states of nucleus and corresponding meson are discussed.

核理论 · 物理学 2007-07-09 O. D. Dalkarov

The radiative neutron capture reaction rates have been studied at very low energies which are of interest for nuclear astrophysics. The rates for many of these reactions have remained independent of temperature so far. The temperature…

核理论 · 物理学 2021-07-26 Vinay Singh , Joydev Lahiri , D. N. Basu

In a series of recent papers, Ivanov et al. and Oberhummer et al. have calculated the rate for the $p + p \to d + e^+ + \nu_e$ reaction with a zero-range four-fermion effective interaction and find a result 2.9 times higher than the…

天体物理学 · 物理学 2009-10-30 John N. Bahcall , Marc Kamionkowski

The cross sections of the $^{130}$Sn(n,$\gamma$)$^{131}$Sn and $^{132}$Sn(n,$\gamma$)$^{133}$Sn reactions are calculated in the direct capture model at low energies below 1.5\,MeV. Using recent data from (d,p) transfer experiments on…

核理论 · 物理学 2012-12-21 Peter Mohr

The (p,$\gamma$) cross sections of three stable Sr isotopes have been measured in the astrophysically relevant energy range. These reactions are important for the $p$-process in stellar nucleosynthesis and, in addition, the reaction cross…

核实验 · 物理学 2009-11-07 Gy. Gyurky , E. Somorjai , Zs. Fulop , S. Harissopulos , P. Demetriou , T. Rauscher