Breakup reaction studies of 10Be and 10,11B using a 10Be beam

S. Ahmed; M. Freer; J. C. Angélique; N. I. Ashwood; V. Bouchat; W. N. Catford; N. M. Clarke; N. Curtis; F. Hanappe; J. C. Lecouey; F. M. Marqués; T. Materna; A. Ninane; G. Normand; N. A. Orr; S. Pain; N. Soić; C. Timis; A. Unshakova; V. A. Ziman

doi:10.1103/PhysRevC.69.024303

Breakup reaction studies of ¹⁰Be and ^10,11B using a ¹⁰Be beam

S. Ahmed
, M. Freer
, J. C. Angélique
, N. I. Ashwood
, V. Bouchat
, W. N. Catford
, N. M. Clarke
, N. Curtis
, F. Hanappe
, J. C. Lecouey
, F. M. Marqués
, T. Materna
, A. Ninane
, G. Normand
, N. A. Orr
, S. Pain
, N. Soić
, C. Timis
, A. Unshakova
, V. A. Ziman

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

The structure of ¹⁰Be has been investigated by inelastic scattering to states above the breakup threshold using the reaction ¹²C(¹⁰Be,¹⁰Be* → ⁶He+^4/He)¹²C at E_beam=302 MeV. Excited states in ¹⁰Be were observed at 9.6±0.1 and 10.2±0.1 MeV. No evidence was observed for the population of the 4 ⁺ member of the ground-state band of ¹⁰Be indicating the shell-model-like structure of the ground state. In addition, the decay of ⁸Be, ¹⁰B, and ¹¹B, populated in the two-neutron, proton pickup, breakup and 1p pickup reactions, was reconstructed through the detection of coincident ⁴He+⁴He, ⁴He+⁶Li, and ⁴He+⁷Li particles. Cross sections for the formation of the ⁸Be, ⁹Be, ¹⁰B, and ¹¹B were also deduced. Contrary to expectations, the two-neutron removal results in the production of ⁸Be predominantly (80%) in the first excited (2⁺) state. This suggests that dynamical excitations play an important role in the neutron removal process.

Original language	English
Article number	024303
Pages (from-to)	243031-243039
Number of pages	9
Journal	Physical Review C - Nuclear Physics
Volume	69
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.69.024303
State	Published - Feb 2004
Externally published	Yes

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Ahmed, S., Freer, M., Angélique, J. C., Ashwood, N. I., Bouchat, V., Catford, W. N., Clarke, N. M., Curtis, N., Hanappe, F., Lecouey, J. C., Marqués, F. M., Materna, T., Ninane, A., Normand, G., Orr, N. A., Pain, S., Soić, N., Timis, C., Unshakova, A., & Ziman, V. A. (2004). Breakup reaction studies of ¹⁰Be and ^10,11B using a ¹⁰Be beam. Physical Review C - Nuclear Physics, 69(2), 243031-243039. Article 024303. https://doi.org/10.1103/PhysRevC.69.024303

@article{13d521424bb04a98ad95bf69a50a4cf2,

title = "Breakup reaction studies of 10Be and 10,11B using a 10Be beam",

abstract = "The structure of 10Be has been investigated by inelastic scattering to states above the breakup threshold using the reaction 12C(10Be,10Be* → 6He+4/He)12C at Ebeam=302 MeV. Excited states in 10Be were observed at 9.6±0.1 and 10.2±0.1 MeV. No evidence was observed for the population of the 4 + member of the ground-state band of 10Be indicating the shell-model-like structure of the ground state. In addition, the decay of 8Be, 10B, and 11B, populated in the two-neutron, proton pickup, breakup and 1p pickup reactions, was reconstructed through the detection of coincident 4He+4He, 4He+6Li, and 4He+7Li particles. Cross sections for the formation of the 8Be, 9Be, 10B, and 11B were also deduced. Contrary to expectations, the two-neutron removal results in the production of 8Be predominantly (80\%) in the first excited (2+) state. This suggests that dynamical excitations play an important role in the neutron removal process.",

author = "S. Ahmed and M. Freer and Ang{\'e}lique, \{J. C.\} and Ashwood, \{N. I.\} and V. Bouchat and Catford, \{W. N.\} and Clarke, \{N. M.\} and N. Curtis and F. Hanappe and Lecouey, \{J. C.\} and Marqu{\'e}s, \{F. M.\} and T. Materna and A. Ninane and G. Normand and Orr, \{N. A.\} and S. Pain and N. Soi{\'c} and C. Timis and A. Unshakova and Ziman, \{V. A.\}",

year = "2004",

month = feb,

doi = "10.1103/PhysRevC.69.024303",

language = "English",

volume = "69",

pages = "243031--243039",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "2",

}

Ahmed, S, Freer, M, Angélique, JC, Ashwood, NI, Bouchat, V, Catford, WN, Clarke, NM, Curtis, N, Hanappe, F, Lecouey, JC, Marqués, FM, Materna, T, Ninane, A, Normand, G, Orr, NA, Pain, S, Soić, N, Timis, C, Unshakova, A & Ziman, VA 2004, 'Breakup reaction studies of ¹⁰Be and ^10,11B using a ¹⁰Be beam', Physical Review C - Nuclear Physics, vol. 69, no. 2, 024303, pp. 243031-243039. https://doi.org/10.1103/PhysRevC.69.024303

TY - JOUR

T1 - Breakup reaction studies of 10Be and 10,11B using a 10Be beam

AU - Ahmed, S.

AU - Freer, M.

AU - Angélique, J. C.

AU - Ashwood, N. I.

AU - Bouchat, V.

AU - Catford, W. N.

AU - Clarke, N. M.

AU - Curtis, N.

AU - Hanappe, F.

AU - Lecouey, J. C.

AU - Marqués, F. M.

AU - Materna, T.

AU - Ninane, A.

AU - Normand, G.

AU - Orr, N. A.

AU - Pain, S.

AU - Soić, N.

AU - Timis, C.

AU - Unshakova, A.

AU - Ziman, V. A.

PY - 2004/2

Y1 - 2004/2

N2 - The structure of 10Be has been investigated by inelastic scattering to states above the breakup threshold using the reaction 12C(10Be,10Be* → 6He+4/He)12C at Ebeam=302 MeV. Excited states in 10Be were observed at 9.6±0.1 and 10.2±0.1 MeV. No evidence was observed for the population of the 4 + member of the ground-state band of 10Be indicating the shell-model-like structure of the ground state. In addition, the decay of 8Be, 10B, and 11B, populated in the two-neutron, proton pickup, breakup and 1p pickup reactions, was reconstructed through the detection of coincident 4He+4He, 4He+6Li, and 4He+7Li particles. Cross sections for the formation of the 8Be, 9Be, 10B, and 11B were also deduced. Contrary to expectations, the two-neutron removal results in the production of 8Be predominantly (80%) in the first excited (2+) state. This suggests that dynamical excitations play an important role in the neutron removal process.

AB - The structure of 10Be has been investigated by inelastic scattering to states above the breakup threshold using the reaction 12C(10Be,10Be* → 6He+4/He)12C at Ebeam=302 MeV. Excited states in 10Be were observed at 9.6±0.1 and 10.2±0.1 MeV. No evidence was observed for the population of the 4 + member of the ground-state band of 10Be indicating the shell-model-like structure of the ground state. In addition, the decay of 8Be, 10B, and 11B, populated in the two-neutron, proton pickup, breakup and 1p pickup reactions, was reconstructed through the detection of coincident 4He+4He, 4He+6Li, and 4He+7Li particles. Cross sections for the formation of the 8Be, 9Be, 10B, and 11B were also deduced. Contrary to expectations, the two-neutron removal results in the production of 8Be predominantly (80%) in the first excited (2+) state. This suggests that dynamical excitations play an important role in the neutron removal process.

UR - https://www.scopus.com/pages/publications/1842854063

U2 - 10.1103/PhysRevC.69.024303

DO - 10.1103/PhysRevC.69.024303

M3 - Article

AN - SCOPUS:1842854063

SN - 0556-2813

VL - 69

SP - 243031

EP - 243039

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 2

M1 - 024303

ER -

Breakup reaction studies of ¹⁰Be and ^10,11B using a ¹⁰Be beam

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