Calculation of the energy dependence of the fusion cross section and total cross sections for peripheral reactions on the basis of an analysis of data on elastic heavy-ion scattering: Strongly bound ions

2007 ◽  
Vol 70 (9) ◽  
pp. 1500-1514
Author(s):  
Yu. A. Pozdnyakov
2007 ◽  
Vol 22 (02n03) ◽  
pp. 317-324 ◽  
Author(s):  
◽  
M. Hartmann ◽  
Y. Maeda ◽  
I. Keshelashvili ◽  
S. Barsov ◽  
...  

The pp → ppϕ and quasi–free pn → dϕ reactions have been studied at the Cooler Synchrotron COSY–Jülich, using the internal beam and the ANKE facility. Total cross sections in the pp entrance channel have been determined at three excess energies ∊ in the range of 18.5–75.9 MeV. In case of the pn entrance channel the energy dependence of the cross section up to 80 MeV has been extracted by exploiting the intrinsic momentum of the neutron inside a deuterium target. Taken together with data for ω–production, a significant enhancement of the ϕ/ω ratio for both entrance channels of a factor 8 is found compared to predictions based on the Okubo–Zweig–Iizuka rule.


1997 ◽  
Vol 50 (1) ◽  
pp. 35 ◽  
Author(s):  
K. Tsushima ◽  
S. W. Huang ◽  
Amand Faessler

Parametrizations of total cross sections sucient for all channels of the πB → Y K reactions are completed using a resonance model. As well as discussing the πN → ΛK reactions, which were not presented in our previous publications, we present the differential cross section for πN → ΛK. This report also aims at presenting supplementary discussions to our previous work.


1976 ◽  
Author(s):  
A.Z. Schwarzschild ◽  
E.H. Auerbach ◽  
R.C. Fuller ◽  
S. Kahana

2013 ◽  
Vol 22 (02) ◽  
pp. 1350010 ◽  
Author(s):  
M. ISMAIL ◽  
W. M. SEIF

We assume a simple model to describe the ion–ion potential with dynamical change in its surface diffuseness. In particular, this model is used to calculate the heavy-ion fusion cross-section using different values of the surface diffuseness. Both the static and dynamic nuclear Woods–Saxon potentials with diffuseness values ranging between 0.65 fm and 1.3 fm are used to reproduce the fusion cross-sections data of the 19 F +208 Pb and 16 O +154 Sm reactions. The results estimate that there are different physical processes which could contribute to the fusion cross-section with different weights at each energy value. Each of these processes has its own nuclear potential.


2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Roman N. Lee ◽  
Alexey A. Lyubyakin ◽  
Vyacheslav A. Stotsky

Abstract Using modern multiloop calculation methods, we derive the analytical expressions for the total cross sections of the processes e−γ →$$ {e}^{-}X\overline{X} $$ e − X X ¯ with X = μ, γ or e at arbitrary energies. For the first two processes our results are expressed via classical polylogarithms. The cross section of e−γ → e−e−e+ is represented as a one-fold integral of complete elliptic integral K and logarithms. Using our results, we calculate the threshold and high-energy asymptotics and compare them with available results.


1990 ◽  
Vol 237 (1) ◽  
pp. 19-23 ◽  
Author(s):  
B.T. Kim ◽  
M. Naito ◽  
T. Udagawa

1985 ◽  
Vol 441 (2) ◽  
pp. 381-396 ◽  
Author(s):  
R. Wolf ◽  
O. Tanimura ◽  
R. Kaps ◽  
U. Mosel

Sign in / Sign up

Export Citation Format

Share Document