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Alt, E. O.; Irgaziev, B. F.; Mukhamedzhanov, A. M.

doi:10.1103/physrevlett.90.122701

Cited by 14 publications

(16 citation statements)

References 14 publications

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“…Three-body Coulomb postdecay acceleration effects are a concern, especially at low relative 7 Be + p energy and low bombarding energy. A recent estimate [46] suggests this effect may not be important in the work of refs. [18,20], while for the 81 MeV/nucleon, small-angle data of ref.…”

Section: Coulomb Dissociationmentioning

confidence: 91%

Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
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We present new measurements of the 7 Be(p,γ) 8 B cross section fromĒcm = 116 to 2460 keV, that incorporate several improvements over our previously published experiment, also discussed here. Our new measurements lead to S17(0) = 22.1 ± 0.6(expt) ± 0.6(theor) eV b based on data from Ecm = 116 to 362 keV, where the central value is based on the theory of Descouvemont and Baye. The theoretical error estimate is based on the fit of 12 different theories to our low energy data. We compare our results to other S17(0) values extracted from both direct ( 7 Be(p,γ) 8 B) and indirect (Coulomb dissociation and heavy-ion reaction) measurements, and show that the results of these 3 types of experiments are not mutually compatible. We recommend a "best" value, S17(0) = 21.4 ± 0.5(expt) ± 0.6(theor) eV b, based on the mean of all modern direct measurements below the 1 + resonance. We also present S-factors at 20 keV which is near the center of the Gamow window: the result of our measurements is S17(20) = 21.4 ± 0.6(expt) ± 0.6(theor) eV b, and the recommended value is S17(20) = 20.7 ± 0.5(expt) ± 0.6(theor) eV b.PACS numbers: 26.20+f, 26.65+t, 25.40Lw

show abstract

Section: Coulomb Dissociationmentioning

confidence: 91%

Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
View full text Add to dashboard Cite

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“…Recently we proposed a time-independent approach in which, for the first time, PDA was shown to naturally arise in a proper three-body treatment of the wave function describing the final state [15]. In that investigation, we used the asymptotic three-charged-particle wave function proposed in Ref.…”

mentioning

confidence: 99%

Three-body Coulomb interaction effects in the final state of thePb208(B8,
Alt
¹
,
Irgaziev
²
,
Mukhamedzhanov
³

2005
Phys. Rev. C
Self Cite
32
3
43
0
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The photodissociation reaction 8 B + γ → 7 Be + p is used to provide information on the astrophysical S 17 factor of the inverse radiative capture reaction, knowledge of which is crucial for an estimation of the high-energy neutrino flux from the sun. Since, at present, the Coulomb field of a fully stripped nucleus serves as the source of the photons, an adequate analysis requires a genuine three-body treatment of this reaction. Among the uncertainties still affecting present analyses, the possible modification of the dissociation cross section by the post-decay acceleration of the fragments 7 Be and p in the target field plays a major role. Working with the prior form of the dissociation amplitude, we first discuss why the standard approximation for the final-state wave function is not appropriate for a proper investigation of this problem; instead, use of a genuine three-particle wave function for the final state proves to be mandatory. Such is provided by a recently proposed wave function for three charged particles in the continuum [A. M. Mukhamedzhanov and M. Lieber, Phys. Rev. A 54, 3078 (1996)] which possesses all the essential features required. It is an exact solution of the three-body Schrödinger equation, but only asymptotically, i.e., for large distances. Therefore, only qualitative predictions can be made currently, such as predicting the kinematic configurations in which post-decay acceleration effects play a negligible role. Explicit calculations are presented for the single and the double differential cross sections for the 208 Pb( 8 B, 7 Be p) 208 Pb Coulomb breakup reaction. We also investigate the influence of the E2 multipole and find its contribution to be small for small scattering angles, but comparable to the one from the E1 dipole for large scattering angles.

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“…frame. We do not include the region, E αd < 0.4 MeV, because in this region higher-order effects, such as the three-body Coulomb effects [21,22], can give a significant contribution. In the region E αd > 0.73 MeV the behavior of the experimental cross section is not clear for the experimental scattering angles and the experimental error is comparable with the value of the cross section (see Tables III through VI of Ref. [16]).…”

Section: Results For the Coulomb Breakup Of 6 LImentioning

confidence: 99%

“…Taking into account the higher-order effects may reduce this discrepancy at the low αd relative energy (E αd < 0.3 MeV). For instance, the three-body Coulomb effects are known to strengthen with decreasing αd relative energy [21,22]. Due to the existence of the nuclear breakup and the small contribution of the E1 Coulomb disintegration to the total cross section, it is impossible to extract the correct value of the astrophysical S factor for α + d → 6 Li + γ radiative capture at low E αd energy.…”

Section: Discussionmentioning

confidence: 99%

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Coulomb breakup of6Li intoα+din the field of a208Pb ion

2011

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Final State Three-Body Coulomb Effects in thePb208(B8,

Cited by 14 publications

References 14 publications

Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
View full text Add to dashboard Cite

Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
View full text Add to dashboard Cite

Three-body Coulomb interaction effects in the final state of thePb208(B8,
Alt
¹
,
Irgaziev
²
,
Mukhamedzhanov
³

2005
Phys. Rev. C
Self Cite
32
3
43
0
View full text Add to dashboard Cite

Coulomb breakup of6Li intoα+din the field of a208Pb ion

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Final State Three-Body Coulomb Effects in thePb208(B8,

Cited by 14 publications

References 14 publications

Precise measurement of theBe7(p,γ)B8Junghans1, Mohrmann2, Snover3 et al. 2003Phys. Rev. C140342794View full textAdd to dashboardCite

Precise measurement of theBe7(p,γ)B8Junghans1, Mohrmann2, Snover3 et al. 2003Phys. Rev. C140342794View full textAdd to dashboardCite

Three-body Coulomb interaction effects in the final state of thePb208(B8,Alt1, Irgaziev2, Mukhamedzhanov3 2005Phys. Rev. CSelf Cite323430View full textAdd to dashboardCite

Coulomb breakup of6Li intoα+din the field of a208Pb ion

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Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
View full text Add to dashboard Cite

Precise measurement of theBe7(p,γ)B8
Junghans
¹
,
Mohrmann
²
,
Snover
³

et al. 2003
Phys. Rev. C
140
34
279
4
View full text Add to dashboard Cite

Three-body Coulomb interaction effects in the final state of thePb208(B8,
Alt
¹
,
Irgaziev
²
,
Mukhamedzhanov
³

2005
Phys. Rev. C
Self Cite
32
3
43
0
View full text Add to dashboard Cite