The magnitude of compound nucleus effects in Ca(d, p) reactions

Brown, G.E.; Denning, A.; Haigh, J.G.B.

doi:10.1016/0375-9474(74)90542-9

Cited by 55 publications

(26 citation statements)

References 23 publications

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“…In the DWBA predictions, the optical model potentials in the entrance and exit channels were taken from the global parametrization of Broglia and Winther [44] and the spectroscopic factors for the target nucleus and the ejectile were set to unity. The observed ratio of the 376-and 2048-keV transition intensities in the present experimental spectra was around 30%, similar to the ratio of the 373-and 2046-keV γ -ray transitions in 43 Ca observed in the (d,p) reaction, which equals 32% [45]. The Q value for the 208 Pb( 42 Ca, 43 Ca) 207 Pb reaction is positive and equal to 565 keV, supporting the transfer scenario.…”

Section: A Sub-barrier Transfer Reactionsupporting

confidence: 68%

Quadrupole collectivity in Ca42 from low-energy Coulomb excitation with AGATA

Hadyńska-Klęk¹,

Napiórkowski²,

Zielińska³

et al. 2018

Phys. Rev. C

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K. HADYŃSKA-KLȨK et al. PHYSICAL REVIEW C 97, 024326 (2018) A Coulomb-excitation experiment to study electromagnetic properties of 42 Ca was performed using a 170-MeV calcium beam from the TANDEM XPU facility at INFN Laboratori Nazionali di Legnaro. γ rays from excited states in 42 Ca were measured with the AGATA spectrometer. The magnitudes and relative signs of ten E2matrix elements coupling six low-lying states in 42 Ca, including the diagonal E2 matrix elements of 2 + 1 and 2 + 2 states, were determined using the least-squares code GOSIA. The obtained set of reduced E2 matrix elements was analyzed using the quadrupole sum rule method and yielded overall quadrupole deformation for 0 + 1,2 and 2 + 1,2 states, as well as triaxiality for 0 + 1,2 states, establishing the coexistence of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in 42 Ca. The experimental results were compared with the state-of-the-art large-scale shell-model and beyond-mean-field calculations, which reproduce well the general picture of shape coexistence in 42 Ca.

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Section: A Sub-barrier Transfer Reactionsupporting

confidence: 68%

Quadrupole collectivity in Ca42 from low-energy Coulomb excitation with AGATA

Hadyńska-Klęk¹,

Napiórkowski²,

Zielińska³

et al. 2018

Phys. Rev. C

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“…Detailed comparisons of the angular distribution data show essentially the same effect, that the differential cross-sections measured in ref. [181] are systematically higher than the other measurements [30,178,[182][183][184][185][186][187][188][189][190][191]. Clearly, there must be some problems in the determination of the absolute cross-sections in ref.…”

Section: Evaluation Of the Angular Distribution Measurementsmentioning

confidence: 99%

Neutron Spectroscopic Factors from Transfer Reactions

Lee

Tsang

2007

AIP Conference Proceedings

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“…We begin by summarizing the CC-GFT approach. We then demonstrate the applicability and reliability of the method by benchmarking our calculations with experimental data measured on the stable isotopes 40,48 Ca, and proceed to make predictions for the (d, p) transfer cross sections on the exotic Calcium isotopes 52,54 Ca.…”

Section: Introductionmentioning

confidence: 99%

“…Magic numbers are one of the cornerstones of nuclear structure, and nuclei with magic numbers of protons and/or neutrons display a larger stability compared to their close neighbors. A recent example is the experimental evidence of new doubly-magic features in the short-lived 52,54 Ca [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Merging ab initio theory and few-body approach for (d, p) reactions

Rotureau

Potel

et al. 2020

J. Phys. G: Nucl. Part. Phys.

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A framework for A(d, p)B reactions is introduced by merging the microscopic approach to computing the properties of the nucleon-target systems and the three-body n+p+A reaction formalism, thus providing a consistent link between the reaction cross sections and the underlying microscopic structure. In this first step toward a full microscopic description, we focus on the inclusion of the neutron-target microscopic properties. The properties of the neutron-target subsystem are encapsulated in the Green's function which is computed with the Coupled Cluster theory using a chiral nucleon-nucleon and three-nucleon interactions. Subsequently, this many-body information is introduced in the few-body Green's Function Transfer approach to (d, p) reactions. Our benchmarks on stable targets 40,48 Ca show an excellent agreement with the data. We then proceed to make specific predictions for (d, p) on neutron rich 52,54 Ca isotopes. These predictions are directly relevant to testing the new magic numbers N = 32, 34 and are expected to be feasible in the first campaign of the projected FRIB facility. arXiv:1904.05978v2 [nucl-th]

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The magnitude of compound nucleus effects in Ca(d, p) reactions

Cited by 55 publications

References 23 publications

Quadrupole collectivity in Ca42 from low-energy Coulomb excitation with AGATA

Quadrupole collectivity in Ca42 from low-energy Coulomb excitation with AGATA

Neutron Spectroscopic Factors from Transfer Reactions

Merging ab initio theory and few-body approach for (d, p) reactions

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