Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies

M. Mazzocco; N. Keeley; A. Boiano; C. Boiano; M. La Commara; C. Manea; C. Parascandolo; D. Pierroutsakou; C. Signorini; E. Strano; D. Torresi; H. Yamaguchi; D. Kahl; L. Acosta; P. Di Meo; J. P. Fernandez-Garcia; T. Glodariu; J. Grebosz; A. Guglielmetti; Y. Hirayama; N. Imai; H. Ishiyama; N. Iwasa; S. C. Jeong; H. M. Jia; Y. H. Kim; S. Kimura; S. Kubono; G. La Rana; C. J. Lin; P. Lotti; G. Marquínez-Durán; I. Martel; H. Miyatake; M. Mukai; T. Nakao; M. Nicoletto; A. Pakou; K. Rusek; Y. Sakaguchi; A. M. Sánchez-Benítez; T. Sava; O. Sgouros; V. Soukeras; F. Soramel; E. Stiliaris; L. Stroe; T. Teranishi; N. Toniolo; Y. Wakabayashi; Y. X. Watanabe; L. Yang; Y. Y. Yang; H. Q. Zhang

doi:10.1103/PhysRevC.100.024602

Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies

M. Mazzocco, N. Keeley, A. Boiano, C. Boiano, M. La Commara, C. Manea, C. Parascandolo, D. Pierroutsakou, C. Signorini, E. Strano, D. Torresi, H. Yamaguchi, D. Kahl, L. Acosta, P. Di Meo, J. P. Fernandez-Garcia, T. Glodariu, J. Grebosz, A. Guglielmetti, Y. HirayamaN. Imai, H. Ishiyama, N. Iwasa, S. C. Jeong, H. M. Jia, Y. H. Kim, S. Kimura, S. Kubono, G. La Rana, C. J. Lin, P. Lotti, G. Marquínez-Durán, I. Martel, H. Miyatake, M. Mukai, T. Nakao, M. Nicoletto, A. Pakou, K. Rusek, Y. Sakaguchi, A. M. Sánchez-Benítez, T. Sava, O. Sgouros, V. Soukeras, F. Soramel, E. Stiliaris, L. Stroe, T. Teranishi, N. Toniolo, Y. Wakabayashi, Y. X. Watanabe, L. Yang, Y. Y. Yang, H. Q. Zhang

SCI - Physics

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Abstract

The elastic scattering of the weakly bound radioactive nuclei B8 and Be7 from a Pb208 target was measured for the first time in the energy range around the Coulomb barrier. The data were analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalisms. The reaction cross sections extracted from the optical model fits clearly indicate a remarkably enhanced reaction probability for the very weakly bound B8 (Sp=137.5keV) compared to similar mass nuclei interacting with the same target nucleus. CDCC calculations assuming a He3+He4 cluster model well described the Be7 experimental elastic scattering angular distributions, whereas the use of a Be7+p cluster model of B8 with an inert Be7 core gave a relatively poor description of the corresponding experimental data, suggesting that this model may be too simplistic and the possibility of core excitation should not be ignored.

Original language	English
Article number	024602
Journal	Physical Review C
Volume	100
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.100.024602
Publication status	Published - 2019 Aug 1

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Mazzocco, M., Keeley, N., Boiano, A., Boiano, C., La Commara, M., Manea, C., Parascandolo, C., Pierroutsakou, D., Signorini, C., Strano, E., Torresi, D., Yamaguchi, H., Kahl, D., Acosta, L., Di Meo, P., Fernandez-Garcia, J. P., Glodariu, T., Grebosz, J., Guglielmetti, A., ... Zhang, H. Q. (2019). Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies. Physical Review C, 100(2), Article 024602. https://doi.org/10.1103/PhysRevC.100.024602

@article{48de03cee9094cd0929d95187fe1460d,

title = "Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies",

abstract = "The elastic scattering of the weakly bound radioactive nuclei B8 and Be7 from a Pb208 target was measured for the first time in the energy range around the Coulomb barrier. The data were analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalisms. The reaction cross sections extracted from the optical model fits clearly indicate a remarkably enhanced reaction probability for the very weakly bound B8 (Sp=137.5keV) compared to similar mass nuclei interacting with the same target nucleus. CDCC calculations assuming a He3+He4 cluster model well described the Be7 experimental elastic scattering angular distributions, whereas the use of a Be7+p cluster model of B8 with an inert Be7 core gave a relatively poor description of the corresponding experimental data, suggesting that this model may be too simplistic and the possibility of core excitation should not be ignored.",

author = "M. Mazzocco and N. Keeley and A. Boiano and C. Boiano and {La Commara}, M. and C. Manea and C. Parascandolo and D. Pierroutsakou and C. Signorini and E. Strano and D. Torresi and H. Yamaguchi and D. Kahl and L. Acosta and {Di Meo}, P. and Fernandez-Garcia, {J. P.} and T. Glodariu and J. Grebosz and A. Guglielmetti and Y. Hirayama and N. Imai and H. Ishiyama and N. Iwasa and Jeong, {S. C.} and Jia, {H. M.} and Kim, {Y. H.} and S. Kimura and S. Kubono and {La Rana}, G. and Lin, {C. J.} and P. Lotti and G. Marqu{\'i}nez-Dur{\'a}n and I. Martel and H. Miyatake and M. Mukai and T. Nakao and M. Nicoletto and A. Pakou and K. Rusek and Y. Sakaguchi and S{\'a}nchez-Ben{\'i}tez, {A. M.} and T. Sava and O. Sgouros and V. Soukeras and F. Soramel and E. Stiliaris and L. Stroe and T. Teranishi and N. Toniolo and Y. Wakabayashi and Watanabe, {Y. X.} and L. Yang and Yang, {Y. Y.} and Zhang, {H. Q.}",

note = "Funding Information: The experiment was performed at the RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo. This work was supported by the Polish National Science Centre under Contract No. 2014/14/M/ST2/00738 (COPIN-INFN Collaboration), by JSPS KAKENHI (Grants No. 16K05369 and No. 19K03883) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan and by the projects CONACyT LN-294537 and DGAPA-PAPIIT IA103218. Publisher Copyright: {\textcopyright} 2019 American Physical Society. UK.",

year = "2019",

month = aug,

day = "1",

doi = "10.1103/PhysRevC.100.024602",

language = "English",

volume = "100",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "2",

}

Mazzocco, M, Keeley, N, Boiano, A, Boiano, C, La Commara, M, Manea, C, Parascandolo, C, Pierroutsakou, D, Signorini, C, Strano, E, Torresi, D, Yamaguchi, H, Kahl, D, Acosta, L, Di Meo, P, Fernandez-Garcia, JP, Glodariu, T, Grebosz, J, Guglielmetti, A, Hirayama, Y, Imai, N, Ishiyama, H, Iwasa, N, Jeong, SC, Jia, HM, Kim, YH, Kimura, S, Kubono, S, La Rana, G, Lin, CJ, Lotti, P, Marquínez-Durán, G, Martel, I, Miyatake, H, Mukai, M, Nakao, T, Nicoletto, M, Pakou, A, Rusek, K, Sakaguchi, Y, Sánchez-Benítez, AM, Sava, T, Sgouros, O, Soukeras, V, Soramel, F, Stiliaris, E, Stroe, L, Teranishi, T, Toniolo, N, Wakabayashi, Y, Watanabe, YX, Yang, L, Yang, YY & Zhang, HQ 2019, 'Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies', Physical Review C, vol. 100, no. 2, 024602. https://doi.org/10.1103/PhysRevC.100.024602

TY - JOUR

T1 - Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies

AU - Mazzocco, M.

AU - Keeley, N.

AU - Boiano, A.

AU - Boiano, C.

AU - La Commara, M.

AU - Manea, C.

AU - Parascandolo, C.

AU - Pierroutsakou, D.

AU - Signorini, C.

AU - Strano, E.

AU - Torresi, D.

AU - Yamaguchi, H.

AU - Kahl, D.

AU - Acosta, L.

AU - Di Meo, P.

AU - Fernandez-Garcia, J. P.

AU - Glodariu, T.

AU - Grebosz, J.

AU - Guglielmetti, A.

AU - Hirayama, Y.

AU - Imai, N.

AU - Ishiyama, H.

AU - Iwasa, N.

AU - Jeong, S. C.

AU - Jia, H. M.

AU - Kim, Y. H.

AU - Kimura, S.

AU - Kubono, S.

AU - La Rana, G.

AU - Lin, C. J.

AU - Lotti, P.

AU - Marquínez-Durán, G.

AU - Martel, I.

AU - Miyatake, H.

AU - Mukai, M.

AU - Nakao, T.

AU - Nicoletto, M.

AU - Pakou, A.

AU - Rusek, K.

AU - Sakaguchi, Y.

AU - Sánchez-Benítez, A. M.

AU - Sava, T.

AU - Sgouros, O.

AU - Soukeras, V.

AU - Soramel, F.

AU - Stiliaris, E.

AU - Stroe, L.

AU - Teranishi, T.

AU - Toniolo, N.

AU - Wakabayashi, Y.

AU - Watanabe, Y. X.

AU - Yang, L.

AU - Yang, Y. Y.

AU - Zhang, H. Q.

N1 - Funding Information: The experiment was performed at the RI Beam Factory operated by RIKEN Nishina Center and CNS, University of Tokyo. This work was supported by the Polish National Science Centre under Contract No. 2014/14/M/ST2/00738 (COPIN-INFN Collaboration), by JSPS KAKENHI (Grants No. 16K05369 and No. 19K03883) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan and by the projects CONACyT LN-294537 and DGAPA-PAPIIT IA103218. Publisher Copyright: © 2019 American Physical Society. UK.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The elastic scattering of the weakly bound radioactive nuclei B8 and Be7 from a Pb208 target was measured for the first time in the energy range around the Coulomb barrier. The data were analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalisms. The reaction cross sections extracted from the optical model fits clearly indicate a remarkably enhanced reaction probability for the very weakly bound B8 (Sp=137.5keV) compared to similar mass nuclei interacting with the same target nucleus. CDCC calculations assuming a He3+He4 cluster model well described the Be7 experimental elastic scattering angular distributions, whereas the use of a Be7+p cluster model of B8 with an inert Be7 core gave a relatively poor description of the corresponding experimental data, suggesting that this model may be too simplistic and the possibility of core excitation should not be ignored.

AB - The elastic scattering of the weakly bound radioactive nuclei B8 and Be7 from a Pb208 target was measured for the first time in the energy range around the Coulomb barrier. The data were analyzed using the optical model and the continuum discretized coupled channels (CDCC) formalisms. The reaction cross sections extracted from the optical model fits clearly indicate a remarkably enhanced reaction probability for the very weakly bound B8 (Sp=137.5keV) compared to similar mass nuclei interacting with the same target nucleus. CDCC calculations assuming a He3+He4 cluster model well described the Be7 experimental elastic scattering angular distributions, whereas the use of a Be7+p cluster model of B8 with an inert Be7 core gave a relatively poor description of the corresponding experimental data, suggesting that this model may be too simplistic and the possibility of core excitation should not be ignored.

UR - http://www.scopus.com/inward/record.url?scp=85070538897&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070538897&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.100.024602

DO - 10.1103/PhysRevC.100.024602

M3 - Article

AN - SCOPUS:85070538897

SN - 2469-9985

VL - 100

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024602

ER -

Elastic scattering for the B 8 and Be 7 + Pb 208 systems at near-Coulomb barrier energies

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