Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target

J. Kovoor; K. L. Jones; J. Hooker; M. Vostinar; R. Kanungo; S. D. Pain; M. Alcorta; J. Allen; C. Andreoiu; L. Atar; D. W. Bardayan; S. S. Bhattacharjee; D. Blankstein; C. Burbadge; S. Burcher; W. N. Catford; S. Cha; K. Chae; D. Connolly; B. Davids; N. E. Esker; F. H. Garcia; S. Gillespie; R. Ghimire; A. Gula; G. Hackman; S. Hallam; M. Hellmich; J. Henderson; M. Holl; P. Jassal; S. King; T. Knight; R. Kruecken; A. Lepailleur; J. Liang; L. Morrison; P. D. O'Malley; X. Pereira-Lopez; A. Psaltis; A. Radich; J. Refsgaard; A. C. Shotter; M. Williams; O. Workman

doi:10.1103/PhysRevC.108.034601

Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target

J. Kovoor, K. L. Jones, J. Hooker, M. Vostinar, R. Kanungo, S. D. Pain, M. Alcorta, J. Allen, C. Andreoiu, L. Atar, D. W. Bardayan, S. S. Bhattacharjee, D. Blankstein, C. Burbadge, S. Burcher, W. N. Catford, S. Cha, K. Chae, D. Connolly, B. DavidsN. E. Esker, F. H. Garcia, S. Gillespie, R. Ghimire, A. Gula, G. Hackman, S. Hallam, M. Hellmich, J. Henderson, M. Holl, P. Jassal, S. King, T. Knight, R. Kruecken, A. Lepailleur, J. Liang, L. Morrison, P. D. O'Malley, X. Pereira-Lopez, A. Psaltis, A. Radich, J. Refsgaard, A. C. Shotter, M. Williams, O. Workman

Nuclear Structure and Nuclear Astrophysi

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

2 Scopus citations

Abstract

The low-lying structure of Be13 has remained an enigma for decades. Despite numerous experimental and theoretical studies, large inconsistencies remain. Being both unbound and one neutron away from Be14, the heaviest bound beryllium nucleus, Be13 is difficult to study through simple reactions with weak radioactive-ion beams or more complex reactions with stable-ion beams. Here, we present the results of a study using the Be12(d,p)Be13 reaction in inverse kinematics using a 9.5 MeV per nucleon Be12 beam from the ISAC-II facility. The solid deuteron target of IRIS was used to achieve an increased areal thickness compared to conventional deuterated polyethylene targets. The Q-value spectrum below -4.4 MeV was analyzed using a Bayesian method with geant4 simulations. A three-point angular distribution with the same Q-value gate was fit with a mixture of s- and p-wave, s- and d-wave, or pure p-wave transfer. The Q-value spectrum was also compared with geant simulations obtained using the energies and widths of states reported in four previous works. It was found that our results are incompatible with works that revealed a wide 5/2+ resonance but shows better agreement with ones that reported a narrower width.

Original language	English
Article number	034601
Journal	Physical Review C
Volume	108
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.108.034601
State	Published - Sep 2023

Funding

This research was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contracts No. DE-FG02-96ER40963 (UTK) and No. DE-AC05-00OR22725 (ORNL), and by the U.S. National Science Foundation under Awards No. PHY-1404218 (Rutgers) and No. PHY-2011890 (Notre Dame). The authors are grateful for the support from NSERC, the Canada Foundation for Innovation, and the Nova Scotia Research and Innovation Trust. The authors gratefully acknowledge support from RCNP, a grant-in-aid program of the Japanese government. TRIUMF is supported by a contribution through the National Research Council, Canada. The authors are thankful to the TRIUMF ISAC beam delivery team for providing the beam. This work was supported by National Research Foundation of Korea (NRF) grants funded by the Korea government (MSIT), Grants No. 2020R1A2C1005981 and No. 2016R1A5A1013277. This work was partially supported by Science and Technologies Facilities Council (STFC) Grant No. ST/L005743/1 (Surrey).

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10.1103/PhysRevC.108.034601

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Kovoor, J., Jones, K. L., Hooker, J., Vostinar, M., Kanungo, R., Pain, S. D., Alcorta, M., Allen, J., Andreoiu, C., Atar, L., Bardayan, D. W., Bhattacharjee, S. S., Blankstein, D., Burbadge, C., Burcher, S., Catford, W. N., Cha, S., Chae, K., Connolly, D., ... Workman, O. (2023). Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target. Physical Review C, 108(3), Article 034601. https://doi.org/10.1103/PhysRevC.108.034601

@article{bc7fbaedb35b4712901c09705c30710e,

title = "Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target",

abstract = "The low-lying structure of Be13 has remained an enigma for decades. Despite numerous experimental and theoretical studies, large inconsistencies remain. Being both unbound and one neutron away from Be14, the heaviest bound beryllium nucleus, Be13 is difficult to study through simple reactions with weak radioactive-ion beams or more complex reactions with stable-ion beams. Here, we present the results of a study using the Be12(d,p)Be13 reaction in inverse kinematics using a 9.5 MeV per nucleon Be12 beam from the ISAC-II facility. The solid deuteron target of IRIS was used to achieve an increased areal thickness compared to conventional deuterated polyethylene targets. The Q-value spectrum below -4.4 MeV was analyzed using a Bayesian method with geant4 simulations. A three-point angular distribution with the same Q-value gate was fit with a mixture of s- and p-wave, s- and d-wave, or pure p-wave transfer. The Q-value spectrum was also compared with geant simulations obtained using the energies and widths of states reported in four previous works. It was found that our results are incompatible with works that revealed a wide 5/2+ resonance but shows better agreement with ones that reported a narrower width.",

author = "J. Kovoor and Jones, {K. L.} and J. Hooker and M. Vostinar and R. Kanungo and Pain, {S. D.} and M. Alcorta and J. Allen and C. Andreoiu and L. Atar and Bardayan, {D. W.} and Bhattacharjee, {S. S.} and D. Blankstein and C. Burbadge and S. Burcher and Catford, {W. N.} and S. Cha and K. Chae and D. Connolly and B. Davids and Esker, {N. E.} and Garcia, {F. H.} and S. Gillespie and R. Ghimire and A. Gula and G. Hackman and S. Hallam and M. Hellmich and J. Henderson and M. Holl and P. Jassal and S. King and T. Knight and R. Kruecken and A. Lepailleur and J. Liang and L. Morrison and O'Malley, {P. D.} and X. Pereira-Lopez and A. Psaltis and A. Radich and J. Refsgaard and Shotter, {A. C.} and M. Williams and O. Workman",

note = "Publisher Copyright: {\textcopyright} 2023 American Physical Society.",

year = "2023",

month = sep,

doi = "10.1103/PhysRevC.108.034601",

language = "English",

volume = "108",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

}

Kovoor, J, Jones, KL, Hooker, J, Vostinar, M, Kanungo, R, Pain, SD, Alcorta, M, Allen, J, Andreoiu, C, Atar, L, Bardayan, DW, Bhattacharjee, SS, Blankstein, D, Burbadge, C, Burcher, S, Catford, WN, Cha, S, Chae, K, Connolly, D, Davids, B, Esker, NE, Garcia, FH, Gillespie, S, Ghimire, R, Gula, A, Hackman, G, Hallam, S, Hellmich, M, Henderson, J, Holl, M, Jassal, P, King, S, Knight, T, Kruecken, R, Lepailleur, A, Liang, J, Morrison, L, O'Malley, PD, Pereira-Lopez, X, Psaltis, A, Radich, A, Refsgaard, J, Shotter, AC, Williams, M & Workman, O 2023, 'Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target', Physical Review C, vol. 108, no. 3, 034601. https://doi.org/10.1103/PhysRevC.108.034601

TY - JOUR

T1 - Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target

AU - Kovoor, J.

AU - Jones, K. L.

AU - Hooker, J.

AU - Vostinar, M.

AU - Kanungo, R.

AU - Pain, S. D.

AU - Alcorta, M.

AU - Allen, J.

AU - Andreoiu, C.

AU - Atar, L.

AU - Bardayan, D. W.

AU - Bhattacharjee, S. S.

AU - Blankstein, D.

AU - Burbadge, C.

AU - Burcher, S.

AU - Catford, W. N.

AU - Cha, S.

AU - Chae, K.

AU - Connolly, D.

AU - Davids, B.

AU - Esker, N. E.

AU - Garcia, F. H.

AU - Gillespie, S.

AU - Ghimire, R.

AU - Gula, A.

AU - Hackman, G.

AU - Hallam, S.

AU - Hellmich, M.

AU - Henderson, J.

AU - Holl, M.

AU - Jassal, P.

AU - King, S.

AU - Knight, T.

AU - Kruecken, R.

AU - Lepailleur, A.

AU - Liang, J.

AU - Morrison, L.

AU - O'Malley, P. D.

AU - Pereira-Lopez, X.

AU - Psaltis, A.

AU - Radich, A.

AU - Refsgaard, J.

AU - Shotter, A. C.

AU - Williams, M.

AU - Workman, O.

PY - 2023/9

Y1 - 2023/9

N2 - The low-lying structure of Be13 has remained an enigma for decades. Despite numerous experimental and theoretical studies, large inconsistencies remain. Being both unbound and one neutron away from Be14, the heaviest bound beryllium nucleus, Be13 is difficult to study through simple reactions with weak radioactive-ion beams or more complex reactions with stable-ion beams. Here, we present the results of a study using the Be12(d,p)Be13 reaction in inverse kinematics using a 9.5 MeV per nucleon Be12 beam from the ISAC-II facility. The solid deuteron target of IRIS was used to achieve an increased areal thickness compared to conventional deuterated polyethylene targets. The Q-value spectrum below -4.4 MeV was analyzed using a Bayesian method with geant4 simulations. A three-point angular distribution with the same Q-value gate was fit with a mixture of s- and p-wave, s- and d-wave, or pure p-wave transfer. The Q-value spectrum was also compared with geant simulations obtained using the energies and widths of states reported in four previous works. It was found that our results are incompatible with works that revealed a wide 5/2+ resonance but shows better agreement with ones that reported a narrower width.

AB - The low-lying structure of Be13 has remained an enigma for decades. Despite numerous experimental and theoretical studies, large inconsistencies remain. Being both unbound and one neutron away from Be14, the heaviest bound beryllium nucleus, Be13 is difficult to study through simple reactions with weak radioactive-ion beams or more complex reactions with stable-ion beams. Here, we present the results of a study using the Be12(d,p)Be13 reaction in inverse kinematics using a 9.5 MeV per nucleon Be12 beam from the ISAC-II facility. The solid deuteron target of IRIS was used to achieve an increased areal thickness compared to conventional deuterated polyethylene targets. The Q-value spectrum below -4.4 MeV was analyzed using a Bayesian method with geant4 simulations. A three-point angular distribution with the same Q-value gate was fit with a mixture of s- and p-wave, s- and d-wave, or pure p-wave transfer. The Q-value spectrum was also compared with geant simulations obtained using the energies and widths of states reported in four previous works. It was found that our results are incompatible with works that revealed a wide 5/2+ resonance but shows better agreement with ones that reported a narrower width.

UR - http://www.scopus.com/inward/record.url?scp=85172441747&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.108.034601

DO - 10.1103/PhysRevC.108.034601

M3 - Article

AN - SCOPUS:85172441747

SN - 2469-9985

VL - 108

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 034601

ER -

Structure studies of Be 13 from the Be 12 (d,p) reaction in inverse kinematics on a solid deuteron target

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