Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies

J.C. Zamora; V. Guimaraes; G.V. Rogachev; S. Ahn; J. Lubian; E.N. Cardozo; E. Aboud; M. Assuncao; M. Barbui; J. Bishop; A. Bosh; J. Hooker; C. Hunt; H. Jayatissa; E. Koshchiy; S. Lukyanov; R. O'Dwyer; Y. Penionzhkevich; B.T. Roeder; A. Saastamoinen; S. Upadhyayula

doi:10.1016/j.physletb.2021.136256

Direct fusion measurement of the ⁸B proton-halo nucleus at near-barrier energies

J.C. Zamora^*, V. Guimaraes, G.V. Rogachev, S. Ahn, J. Lubian, E.N. Cardozo, E. Aboud, M. Assuncao, M. Barbui, J. Bishop, A. Bosh, J. Hooker, C. Hunt, H. Jayatissa, E. Koshchiy, S. Lukyanov, R. O'Dwyer, Y. Penionzhkevich, B.T. Roeder, A. SaastamoinenS. Upadhyayula

^*Corresponding author for this work

Physics and Astronomy

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Abstract

Direct measurements of the total fusion cross section for ⁸B + ⁴⁰Ar were achieved with the active target technique. The fusion excitation function was extracted at energies near the Coulomb barrier. The cross section is well described by a coupled reaction channels calculation. The data were compared with previous 8B fusion experiments on ²⁸Si and ⁵⁸Ni targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the ⁸B + ⁵⁸Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for ⁸B+²⁸Si at higher energies and with other weakly-bound systems at near-barrier energies.

Original language	English
Article number	136256
Number of pages	6
Journal	Physics Letters B
Volume	816
Early online date	29 Mar 2021
DOIs	https://doi.org/10.1016/j.physletb.2021.136256
Publication status	Published - 10 May 2021

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Zamora, J. C., Guimaraes, V., Rogachev, G. V., Ahn, S., Lubian, J., Cardozo, E. N., Aboud, E., Assuncao, M., Barbui, M., Bishop, J., Bosh, A., Hooker, J., Hunt, C., Jayatissa, H., Koshchiy, E., Lukyanov, S., O'Dwyer, R., Penionzhkevich, Y., Roeder, B. T., ... Upadhyayula, S. (2021). Direct fusion measurement of the ⁸B proton-halo nucleus at near-barrier energies. Physics Letters B, 816, Article 136256. https://doi.org/10.1016/j.physletb.2021.136256

@article{8f10cd990d20437b9bf78c6db9c29a5a,

title = "Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies",

abstract = "Direct measurements of the total fusion cross section for 8B + 40Ar were achieved with the active target technique. The fusion excitation function was extracted at energies near the Coulomb barrier. The cross section is well described by a coupled reaction channels calculation. The data were compared with previous 8B fusion experiments on 28Si and 58Ni targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the 8B + 58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for 8B+28Si at higher energies and with other weakly-bound systems at near-barrier energies.",

author = "J.C. Zamora and V. Guimaraes and G.V. Rogachev and S. Ahn and J. Lubian and E.N. Cardozo and E. Aboud and M. Assuncao and M. Barbui and J. Bishop and A. Bosh and J. Hooker and C. Hunt and H. Jayatissa and E. Koshchiy and S. Lukyanov and R. O'Dwyer and Y. Penionzhkevich and B.T. Roeder and A. Saastamoinen and S. Upadhyayula",

year = "2021",

month = may,

day = "10",

doi = "10.1016/j.physletb.2021.136256",

language = "English",

volume = "816",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

Zamora, JC, Guimaraes, V, Rogachev, GV, Ahn, S, Lubian, J, Cardozo, EN, Aboud, E, Assuncao, M, Barbui, M, Bishop, J, Bosh, A, Hooker, J, Hunt, C, Jayatissa, H, Koshchiy, E, Lukyanov, S, O'Dwyer, R, Penionzhkevich, Y, Roeder, BT, Saastamoinen, A & Upadhyayula, S 2021, 'Direct fusion measurement of the ⁸B proton-halo nucleus at near-barrier energies', Physics Letters B, vol. 816, 136256. https://doi.org/10.1016/j.physletb.2021.136256

TY - JOUR

T1 - Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies

AU - Zamora, J.C.

AU - Guimaraes, V.

AU - Rogachev, G.V.

AU - Ahn, S.

AU - Lubian, J.

AU - Cardozo, E.N.

AU - Aboud, E.

AU - Assuncao, M.

AU - Barbui, M.

AU - Bishop, J.

AU - Bosh, A.

AU - Hooker, J.

AU - Hunt, C.

AU - Jayatissa, H.

AU - Koshchiy, E.

AU - Lukyanov, S.

AU - O'Dwyer, R.

AU - Penionzhkevich, Y.

AU - Roeder, B.T.

AU - Saastamoinen, A.

AU - Upadhyayula, S.

PY - 2021/5/10

Y1 - 2021/5/10

N2 - Direct measurements of the total fusion cross section for 8B + 40Ar were achieved with the active target technique. The fusion excitation function was extracted at energies near the Coulomb barrier. The cross section is well described by a coupled reaction channels calculation. The data were compared with previous 8B fusion experiments on 28Si and 58Ni targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the 8B + 58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for 8B+28Si at higher energies and with other weakly-bound systems at near-barrier energies.

AB - Direct measurements of the total fusion cross section for 8B + 40Ar were achieved with the active target technique. The fusion excitation function was extracted at energies near the Coulomb barrier. The cross section is well described by a coupled reaction channels calculation. The data were compared with previous 8B fusion experiments on 28Si and 58Ni targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the 8B + 58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for 8B+28Si at higher energies and with other weakly-bound systems at near-barrier energies.

U2 - 10.1016/j.physletb.2021.136256

DO - 10.1016/j.physletb.2021.136256

M3 - Article

SN - 0370-2693

VL - 816

JO - Physics Letters B

JF - Physics Letters B

M1 - 136256

ER -

Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies

Abstract

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Direct fusion measurement of the ⁸B proton-halo nucleus at near-barrier energies