One- and two-proton removal from 15O

Jeppesen, H.; Kanungo, R.; Abu-Ibrahim, B.; Adhikari, S.; Chiba, M.; Fang, DQ; Iwasa, N.; Kimura, K.; Maeda, K.; Nishimura, S.; Ohnishi, T.; Ozawa, A.; Samanta, C.; Suda, T.; Suzuki, Tomokazu; Tanihata, I.; Wang, Q.; Wu, Changqi; Yamaguchi, Yoshitaka; Yamada, K.; Yoshida, Akihiro; Tao, Zheng

doi:10.1016/j.nuclphysa.2004.03.145

Cited by 12 publications

(9 citation statements)

References 21 publications

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“…The parameters are shown in Tables III and I. Our calculations with both Coulomb and medium corrections by slightly changing the spectroscopic factors as 1.42 and 0.13 are in agreement with the results of Ref. [34]. The calculated one-proton removal cross sections are 78.79 mb, 75.20 mb, 93.98 mb and 90.74 mb with both Coulomb and medium corrections, no Coulomb corrections, no medium corrections and neither medium effects nor Coulomb corrections, respectively.…”

Section: Resultssupporting

confidence: 88%

“…The numerical results for the single particle cross sections with different configurations are shown in Table II One-proton removal reaction from 15 O on a Be target has been measured at 56 MeV/nucleon and the total knockout cross section is reported as 80±20 mb in Ref. [34]. The authors were able to explain the orbital occupancy of valence protons with a pure 1p 1/2 single particle state using a Glauber reaction model.…”

Section: Resultsmentioning

confidence: 99%

“…The contributions from each of the p-states yield spectroscopic factors of 1.27(9) and 0.100(75) for the 1p 1/2 and the 1p 3/2 orbital, respectively (Ref. [34] and references therein).…”

Section: Resultsmentioning

confidence: 99%

“…We have followed the interpretation of Ref. [34] and calculated the one-proton removal cross sections for the same reaction with the same orbital occupancy assumption. The parameters are shown in Tables III and I. Our calculations with both Coulomb and medium corrections by slightly changing the spectroscopic factors as 1.42 and 0.13 are in agreement with the results of Ref.…”

Section: Resultsmentioning

confidence: 99%

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Coulomb distortion and medium corrections in nucleon-removal reactions

et al. 2013

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One-nucleon removal reactions at or above the Fermi energy are important tools to explore the single-particle structure of exotic nuclei. Experimental data must be compared with calculations to extract structure information, evaluate correlation effects in nuclei or determine reaction rates for nuclear astrophysics. However, there is insufficient knowledge to calculate accurately the cross sections for these reactions. We evaluate the contributions of the final state interaction (FSI) and of the medium modifications of the nucleon-nucleon interactions and obtain the shapes and magnitudes of momentum distributions. Such effects have been often neglected in the literature. Calculations for reactions at energies 35 - 1000 MeV/nucleon are reported and compared to published data. For consistency, the state-of-the-art eikonal method for stripping and diffraction dissociation is used. We find that the two effects are important and their relative contributions vary with the energy and with the atomic and mass number of the projectile involved. These two often neglected effects modify considerably the one-nucleon removal cross sections. As expected, the effect are largest at lower energies, around 50 MeV/nucleon and on heavy targets.Comment: 12 pages, 10 figures. Accpeted for publication in the Physical Review C. arXiv admin note: text overlap with arXiv:nucl-th/0407026 by other author

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

“…The contributions from each of the p-states yield spectroscopic factors of 1.27(9) and 0.100(75) for the 1p 1/2 and the 1p 3/2 orbital, respectively (Ref. [34] and references therein).…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Coulomb distortion and medium corrections in nucleon-removal reactions

et al. 2013

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“…In practice, one identifies 17 In shell model, the internal wave function is explicitly computed when the center-of-mass part of the N body wave function can be mapped onto a 0s state. 18 The SR-EDF method, as it is currently applied to self-bound nuclei, is not related to an existence theoremà la Hohenberg-Kohn.…”

Section: Nuclear Edf Calculationsmentioning

confidence: 99%

New analysis method of the halo phenomenon in finite many-fermion systems: First applications to medium-mass atomic nuclei

Rotival

Duguet

2009

Phys. Rev. C

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A new analysis method to investigate halos in finite many-fermion systems is designed, as existing characterization methods are proven to be incomplete/inaccurate. A decomposition of the internal wave-function of the N -body system in terms of overlap functions allows a model-independent analysis of medium-range and asymptotic properties of the internal one-body density. The existence of a spatially decorrelated region in the density profile is related to the existence of three typical energy scales in the excitation spectrum of the (N −1)-body system. A series of model-independent measures, taking the internal density as the only input, are introduced. The new measures allow a quantification of the potential halo in terms of the average number of fermions participating to it and of its impact on the system extension. Those new "halo factors" are validated through simulations and applied to results obtained through energy density functional calculations of medium-mass nuclei. Performing spherical Hartree-Fock-Bogoliubov calculations with state-of-the-art Skyrme plus pairing functionals, a collective halo is predicted in drip-line Cr isotopes, whereas no such effect is seen in Sn isotopes.

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