Absolute cross sections for deuteron-induced reactions on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Li</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>6</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>at energies below 1 MeV

Elwyn, A.J.; Holland, Robert E.; Davids, C. N.; Meyer-Schützmeister, L.; Monahan, J.E.; Mooring, F.P.; Ray, William J.

doi:10.1103/physrevc.16.1744

Cited by 47 publications

(35 citation statements)

References 19 publications

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“…The indirect data (red squares) are normalized and compared with direct ones from [22] (black dots), [23] (black squares), [24] (blue circles), [25] (triangles). The agreement is clearly evident both below and above the Coulomb barrier.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

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Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Pizzone

Lamia

Bertulani

et al. 2011

EPJ Web of Conferences

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Abstract. Fusion reactions play a crucial role for several astrophysical scenarios. At the low energies typical of such environments direct measurements of reaction cross sections are very difficult, and even sometimes impossible. In such cases the use of indirect methods can give a substantial help. The Trojan Horse Method (THM) is based on the quasi-free break-up of a nucleus, which can be described in terms of a cluster structure. In such applications the independence of THM results with different break-up schemes, was tested using the quasi free 3 He( 6 Li,αα)H and 3 He( 7 Li,αα) 2 H reactions. Results were then compared with the direct behaviours obtained from available data as well as with the cross sections extracted from previous indirect investigations of the same binary reactions using a different nuclide as a Trojan Horse nucleus.

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Section: Data Analysis and Resultsmentioning

confidence: 99%

“…literature [22][23][24][25] (Figure 4). The agreement is very good throughout the whole energy range after normalization of the indirect to direct data.…”

Section: Data Analysis and Resultsmentioning

confidence: 99%

Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Pizzone

Lamia

Bertulani

et al. 2011

EPJ Web of Conferences

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“…In this paper, we focus our attention on a verification scenario of knock-on tail formation using 0.48-MeV γ-rays by 6 Li(d,p) 7 Li*, 7 Li*→ 7 Li+γ reaction [19][20][21][22] in a deuterium plasma. In Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Previously we roughly evaluated the 6 Li(d,pγ) 7 Li reaction rate coefficient assuming a uniform plasma [16]. In this paper we develop more 6 Li(d,pγ) 7 Li cross section as a function of relative energy [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Knock-on Tail Formation Due to Nuclear Elastic Scattering and Its Observation Method Using <i>γ</i>-Ray-Generating <sup>6</sup>Li+d Reaction in Tokamak Deuterium Plasmas

Matsuura

Sugiyama

Kajimoto

et al. 2016

Plasma and Fusion Research

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A knock-on tail formation in deuteron velocity distribution function due to nuclear elastic scattering (NES) by energetic protons and its observation method using γ-ray-generating 6 Li(d,pγ) 7 Li reaction are examined for proton-beam-injected deuterium plasmas. The proton velocity distribution function is obtained by means of the ion trajectory analysis in a Tokamak magnetic configuration. The knock-on tail in two-dimensional (2D) deuteron velocity distribution function due to NES by energetic protons is evaluated via Boltzmann collision integral and 2D Fokker-Planck simulation. From the 2D deuteron velocity distribution function obtained, enhancement of the emission rate of 0.48-MeV γ-rays by 6 Li(d,p) 7 Li*, 7 Li*→ 7 Li+γ reaction due to NES is evaluated. It is shown that the γ-ray emission rate is significantly influenced by the magnitude of the knock-on tail, and the γ-ray-generating reaction can be a useful tool for the knock-on tail observation.

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“…The fitting to the direct low-energy experimental data [4,[7][8][9][10] is done using the nonlinear least-squares procedure. Golovkov et al [11] data are the outliers, and, hence, are not included in the calculation.…”

Section: Conditions a Experimental Datamentioning

confidence: 99%

Low-energyR-matrix fits for theLi6(d,α)He
Grineviciute
¹
,
Lamia
²
,
Mukhamedzhanov
³

et al. 2015
Phys. Rev. C
6
0
5
0
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Background:The information about the 6 Li(d, α) 4 He reaction rates of astrophysical interest can be obtained by extrapolating direct data to lower energies, or by indirect methods. The indirect Trojan horse method, as well as various R-matrix and polynomial fits to direct data, estimate the electron screening energies much larger than the adiabatic limit. Calculations that include the subthreshold resonance estimate smaller screening energies.Purpose: Obtain the 6 Li(d, α) 4 He reaction R-matrix parameters and the bare astrophysical S factor for the energies relevant to the stellar plasmas by fitting the R-matrix formulas for the subthreshold resonances to the S-factor data above 60 keV. Methods:The bare S factor is calculated using the single-and the two-level R-matrix formulas for the closest to the threshold 0 + and 2 + subthreshold states at 22.2, 20.2 and 20.1 MeV. The electron screening potential U e is then obtained by fitting it as a single parameter to the low-energy data. The calculations are also done by fitting U e simultaneously with other parameters.Results: The low-energy S factor is dominated by the 2 + subthreshold resonance at 22.2 MeV. The influence of the other two subthreshold states is small. The resultant electron screening is smaller than the adiabatic value. The fits that neglect the electron screening above 60 keV produce a significantly smaller electron screening potential. The calculations show a large ambiguity associated with a choice of the initial channel radius. Conclusions:The R-matrix fits do not show a significantly larger Ue than predicted by the atomic physics models. The R-matrix best fit provides U e = 149.5 eV and S b (0) = 21.7 MeV b.

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Absolute cross sections for deuteron-induced reactions onLi6at energies below 1 MeV

Cited by 47 publications

References 19 publications

Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Knock-on Tail Formation Due to Nuclear Elastic Scattering and Its Observation Method Using <i>γ</i>-Ray-Generating <sup>6</sup>Li+d Reaction in Tokamak Deuterium Plasmas

Low-energyR-matrix fits for theLi6(d,α)He
Grineviciute
¹
,
Lamia
²
,
Mukhamedzhanov
³

et al. 2015
Phys. Rev. C
6
0
5
0
View full text Add to dashboard Cite

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Absolute cross sections for deuteron-induced reactions onLi6at energies below 1 MeV

Cited by 47 publications

References 19 publications

Spectator invariance test in the study of the Trojan Horse Method6,7Li fusion reactions via the Trojan Horse Method

Spectator invariance test in the study of the Trojan Horse Method6,7Li fusion reactions via the Trojan Horse Method

Knock-on Tail Formation Due to Nuclear Elastic Scattering and Its Observation Method Using <i>γ</i>-Ray-Generating <sup>6</sup>Li+d Reaction in Tokamak Deuterium Plasmas

Low-energyR-matrix fits for theLi6(d,α)HeGrineviciute1, Lamia2, Mukhamedzhanov3 et al. 2015Phys. Rev. C6050View full textAdd to dashboardCite

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Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Spectator invariance test in the study of the Trojan Horse Method^6,7Li fusion reactions via the Trojan Horse Method

Low-energyR-matrix fits for theLi6(d,α)He
Grineviciute
¹
,
Lamia
²
,
Mukhamedzhanov
³

et al. 2015
Phys. Rev. C
6
0
5
0
View full text Add to dashboard Cite