scholarly journals Low-energy cross section of theBe7(p,γ)B8solar fusion reaction from the Coulomb dissociation ofB8

2006 ◽  
Vol 73 (1) ◽  
Author(s):  
F. Schümann ◽  
S. Typel ◽  
F. Hammache ◽  
K. Sümmerer ◽  
F. Uhlig ◽  
...  
2003 ◽  
Vol 90 (23) ◽  
Author(s):  
F. Schümann ◽  
F. Hammache ◽  
S. Typel ◽  
F. Uhlig ◽  
K. Sümmerer ◽  
...  

2017 ◽  
Vol 26 (12) ◽  
pp. 1750080 ◽  
Author(s):  
M. Moeini Arani ◽  
A. Koohi ◽  
S. Yarmahmoodi

We study the low-energy [Formula: see text] fusion reaction using a model inspired by the halo/cluster effective field theory (H/CEFT) formalism. For this purpose, we initially focus on the [Formula: see text] reaction without considering the Coulomb force in the incoming deuteron–triton system. In the next step, we insert the Coulomb correction in the [Formula: see text] cross-section. The cross-section results involve unknown parameters. So, finally, we fit the H/CEFT cross-section of the [Formula: see text] reaction to the experimental data and obtain the values of these unknown parameters.


2010 ◽  
Vol 25 (21n23) ◽  
pp. 1951-1954 ◽  
Author(s):  
A. ODAHARA ◽  
A. TAKASHIMA ◽  
M. SUGA ◽  
K. TAJIRI ◽  
K. KURATA ◽  
...  

Experiments based on the isomer-spectroscopy method were performed using the secondary beam line at RCNP, Osaka University. Recently, a new γ-ray spectroscopy method was established using fusion reaction induced by low-energy RI beam. This method enables us to study high-spin states of nuclei in wider mass region where it is difficult to populate them by using the combination of stable beams and stable targets. This method works well although low production of nuclei, because (1) the combination of beams and targets can be selected with large-reaction cross section and (2) high-S/N measurement can be performed by the event-by-event detection to select the events correlated with RI beam, which reduces background γ rays, competing with γ rays emitted from fusion products. As the first step, high-spin states of 142 Pr were studied using fusion reaction induced by low-energy 17 N RI beam. Large cross section was obtained by the 130 Te (17 N ,5 n ) reaction with 4.9 MeV/u 17 N beam. Event selection, which was carried out by the event-by-event detection with low-beam intensity of 2×104 pps, enables high-S/N measurement.


2015 ◽  
Vol 11 (2) ◽  
pp. 2972-2978
Author(s):  
Fouad A. Majeed ◽  
Yousif A. Abdul-Hussien

In this study the calculations of the total fusion reaction cross section have been performed for fusion reaction systems 17F + 208Pb and 15C + 232Th which involving halo nuclei by using a semiclassical approach.The semiclassical treatment is comprising the WKB approximation to describe the relative motion between target and projectile nuclei, and Continuum Discretized Coupled Channel (CDCC) method to describe the intrinsic motion for both target and projectile nuclei. For the same of comparsion a full quantum mechanical clacualtions have been preforemd using the (CCFULL) code. Our theorticalrestuls are compared with the full quantum mechaincialcalcuations and with the recent experimental data for the total fusion reaction  checking the stability of the distancesThe coupled channel calculations of the total fusion cross section σfus, and the fusion barrier distribution Dfus. The comparsion with experiment proves that the semiclassiacl approach adopted in the present work reproduce the experimental data better that the full quantal mechanical calcautions. 


1979 ◽  
Vol 320 (2) ◽  
pp. 404-412 ◽  
Author(s):  
J.L. Zyskind ◽  
P.D. Parker
Keyword(s):  

The 90° cross-section of the reaction 3 1 H( d , n ) 4 2 He has been investigated over the energy range 100 to 200 keV (energy of bombarding triton) using the 200 keV accelerating set of the establishment. Two methods have been used. As a preliminary experiment the yield of alpha-particles from a thick heavy-ice target was measured per unit charge of incident beam, as a function of deuteron energy, and the variation of cross-section deduced from the gradient of this excitation curve and the range energy relation for tritons in heavy water. Secondly, a comparison was made between the yield of alpha-particles from the D-T reaction and the yield of protons from the D-D reaction when a beam containing both deuterons and tritons was passed through a heavy-water vapour target. (The energy loss in this target was calculated as only a few hundred electron volts.) To do this a simultaneous observation was made of the protons and alpha-particles using the same counter. The values obtained for the cross-section have been compared with the resonance formulae given by Bretscher & French (1949) and by Tascbek, Everhart, Gittings, Hemmendinger & Jarvis (1948) and have been found to be in disagreement with formulae of this type. From considerations of the absolute magnitude of the cross-section it has been deduced that no conventional theory postulating reaction at a distance equal to the sum of the nuclear radii (cf. Konopinski & Teller 1948) will be able to explain this reaction. The evidence for a low-energy resonance (Allan & Poole 1949) is thought to be inconclusive.


2015 ◽  
Vol 166 (1-4) ◽  
pp. 15-18 ◽  
Author(s):  
E. Schmitt ◽  
W. Friedland ◽  
P. Kundrát ◽  
M. Dingfelder ◽  
A. Ottolenghi

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