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

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

Direct measurements of the total fusion cross section for B8+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...

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Main Authors: 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
Format: Article
Language:English
Published: Elsevier 2021-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269321001969
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spelling doaj-9d5c870c052b43baae5eeb39c6ca937f2021-04-02T04:48:18ZengElsevierPhysics Letters B0370-26932021-05-01816136256Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energiesJ.C. Zamora0V. Guimaraes1G.V. Rogachev2S. Ahn3J. Lubian4E.N. Cardozo5E. Aboud6M. Assuncao7M. Barbui8J. Bishop9A. Bosh10J. Hooker11C. Hunt12H. Jayatissa13E. Koshchiy14S. Lukyanov15R. O'Dwyer16Y. Penionzhkevich17B.T. Roeder18A. Saastamoinen19S. Upadhyayula20Instituto de Fisica, Universidade de Sao Paulo, SP 05508-090, Brazil; Corresponding author.Instituto de Fisica, Universidade de Sao Paulo, SP 05508-090, BrazilCyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USAInstituto de Fisica, Universidade Federal Fluminense, Niteroi, RJ 24210-340, BrazilInstituto de Fisica, Universidade Federal Fluminense, Niteroi, RJ 24210-340, BrazilCyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USADepartamento de Fisica, Universidade Federal de Sao Paulo, Diadema, SP 09913-030, BrazilCyclotron Institute, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USAJoint Institute for Nuclear Research, RU-141980 Dubna, Russian FederationCyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USAJoint Institute for Nuclear Research, RU-141980 Dubna, Russian FederationCyclotron Institute, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USACyclotron Institute, Texas A&M University, College Station, TX 77843, USA; Department of Physics and Astronomy, Texas A&M University, College Station, TX 77843, USADirect measurements of the total fusion cross section for B8+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 B8 fusion experiments on Si28 and Ni58 targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the B8+58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for B8+28Si at higher energies and with other weakly-bound systems at near-barrier energies.http://www.sciencedirect.com/science/article/pii/S0370269321001969
collection DOAJ
language English
format Article
sources DOAJ
author 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
spellingShingle 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
Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
Physics Letters B
author_facet 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
author_sort J.C. Zamora
title Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
title_short Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
title_full Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
title_fullStr Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
title_full_unstemmed Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies
title_sort direct fusion measurement of the 8b proton-halo nucleus at near-barrier energies
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2021-05-01
description Direct measurements of the total fusion cross section for B8+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 B8 fusion experiments on Si28 and Ni58 targets. No evidence of striking enhancement of the total fusion cross section at near the Coulomb barrier, that was previously reported for the B8+58Ni system, was observed in these direct measurements. The present data are systematically consistent with the results for B8+28Si at higher energies and with other weakly-bound systems at near-barrier energies.
url http://www.sciencedirect.com/science/article/pii/S0370269321001969
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