Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction

A. H. Wuosmaa; S. Bedoor; K. W. Brown; W. W. Buhro; Z. Chajecki; R. J. Charity; W. G. Lynch; J. Manfredi; S. T. Marley; D. G. McNeel; A. S. Newton; D. V. Shetty; R. H. Showalter; L. G. Sobotka; M. B. Tsang; J. R. Winkelbauer; R. B. Wiringa

doi:10.1103/PhysRevC.95.014310

Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction

A. H. Wuosmaa
, S. Bedoor
, K. W. Brown
, W. W. Buhro
, Z. Chajecki
, R. J. Charity
, W. G. Lynch
, J. Manfredi
, S. T. Marley
, D. G. McNeel
, A. S. Newton
, D. V. Shetty
, R. H. Showalter
, L. G. Sobotka
, M. B. Tsang
, J. R. Winkelbauer
, R. B. Wiringa

Department of Chemistry

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

15 Scopus citations

Abstract

We have studied the ground state of the unbound, very neutron-rich isotope of hydrogen H5, using the He6(d,He3)H5 reaction in inverse kinematics at a bombarding energy of E(He6)=55A MeV. The present results suggest a ground-state resonance energy ER=2.4±0.3 MeV above the H3+2n threshold, with an intrinsic width of Γ=5.3±0.4 MeV in the H5 system. Both the resonance energy and width are higher than those reported in some, but not all previous studies of H5. The previously unreported He6(d,t)Heg.s.5 reaction is observed in the same measurement, providing a check on the understanding of the response of the apparatus. The data are compared to expectations from direct two-neutron and dineutron decay. The possibility of excited states of H5 populated in this reaction is discussed using different calculations of the He6→H5+p spectroscopic overlaps from shell-model and ab initio nuclear-structure calculations.

Original language	English
Article number	014310
Journal	Physical Review C
Volume	95
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.95.014310
State	Published - Jan 11 2017

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Wuosmaa, A. H., Bedoor, S., Brown, K. W., Buhro, W. W., Chajecki, Z., Charity, R. J., Lynch, W. G., Manfredi, J., Marley, S. T., McNeel, D. G., Newton, A. S., Shetty, D. V., Showalter, R. H., Sobotka, L. G., Tsang, M. B., Winkelbauer, J. R., & Wiringa, R. B. (2017). Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction. Physical Review C, 95(1), Article 014310. https://doi.org/10.1103/PhysRevC.95.014310

@article{327120a455ef4aff992c69873d0d8987,

title = "Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction",

abstract = "We have studied the ground state of the unbound, very neutron-rich isotope of hydrogen H5, using the He6(d,He3)H5 reaction in inverse kinematics at a bombarding energy of E(He6)=55A MeV. The present results suggest a ground-state resonance energy ER=2.4±0.3 MeV above the H3+2n threshold, with an intrinsic width of Γ=5.3±0.4 MeV in the H5 system. Both the resonance energy and width are higher than those reported in some, but not all previous studies of H5. The previously unreported He6(d,t)Heg.s.5 reaction is observed in the same measurement, providing a check on the understanding of the response of the apparatus. The data are compared to expectations from direct two-neutron and dineutron decay. The possibility of excited states of H5 populated in this reaction is discussed using different calculations of the He6→H5+p spectroscopic overlaps from shell-model and ab initio nuclear-structure calculations.",

author = "Wuosmaa, \{A. H.\} and S. Bedoor and Brown, \{K. W.\} and Buhro, \{W. W.\} and Z. Chajecki and Charity, \{R. J.\} and Lynch, \{W. G.\} and J. Manfredi and Marley, \{S. T.\} and McNeel, \{D. G.\} and Newton, \{A. S.\} and Shetty, \{D. V.\} and Showalter, \{R. H.\} and Sobotka, \{L. G.\} and Tsang, \{M. B.\} and Winkelbauer, \{J. R.\} and Wiringa, \{R. B.\}",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = jan,

day = "11",

doi = "10.1103/PhysRevC.95.014310",

language = "English",

volume = "95",

journal = "Physical Review C",

issn = "2469-9985",

number = "1",

}

Wuosmaa, AH, Bedoor, S, Brown, KW, Buhro, WW, Chajecki, Z, Charity, RJ, Lynch, WG, Manfredi, J, Marley, ST, McNeel, DG, Newton, AS, Shetty, DV, Showalter, RH, Sobotka, LG, Tsang, MB, Winkelbauer, JR & Wiringa, RB 2017, 'Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction', Physical Review C, vol. 95, no. 1, 014310. https://doi.org/10.1103/PhysRevC.95.014310

TY - JOUR

T1 - Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction

AU - Wuosmaa, A. H.

AU - Bedoor, S.

AU - Brown, K. W.

AU - Buhro, W. W.

AU - Chajecki, Z.

AU - Charity, R. J.

AU - Lynch, W. G.

AU - Manfredi, J.

AU - Marley, S. T.

AU - McNeel, D. G.

AU - Newton, A. S.

AU - Shetty, D. V.

AU - Showalter, R. H.

AU - Sobotka, L. G.

AU - Tsang, M. B.

AU - Winkelbauer, J. R.

AU - Wiringa, R. B.

PY - 2017/1/11

Y1 - 2017/1/11

N2 - We have studied the ground state of the unbound, very neutron-rich isotope of hydrogen H5, using the He6(d,He3)H5 reaction in inverse kinematics at a bombarding energy of E(He6)=55A MeV. The present results suggest a ground-state resonance energy ER=2.4±0.3 MeV above the H3+2n threshold, with an intrinsic width of Γ=5.3±0.4 MeV in the H5 system. Both the resonance energy and width are higher than those reported in some, but not all previous studies of H5. The previously unreported He6(d,t)Heg.s.5 reaction is observed in the same measurement, providing a check on the understanding of the response of the apparatus. The data are compared to expectations from direct two-neutron and dineutron decay. The possibility of excited states of H5 populated in this reaction is discussed using different calculations of the He6→H5+p spectroscopic overlaps from shell-model and ab initio nuclear-structure calculations.

AB - We have studied the ground state of the unbound, very neutron-rich isotope of hydrogen H5, using the He6(d,He3)H5 reaction in inverse kinematics at a bombarding energy of E(He6)=55A MeV. The present results suggest a ground-state resonance energy ER=2.4±0.3 MeV above the H3+2n threshold, with an intrinsic width of Γ=5.3±0.4 MeV in the H5 system. Both the resonance energy and width are higher than those reported in some, but not all previous studies of H5. The previously unreported He6(d,t)Heg.s.5 reaction is observed in the same measurement, providing a check on the understanding of the response of the apparatus. The data are compared to expectations from direct two-neutron and dineutron decay. The possibility of excited states of H5 populated in this reaction is discussed using different calculations of the He6→H5+p spectroscopic overlaps from shell-model and ab initio nuclear-structure calculations.

UR - https://www.scopus.com/pages/publications/85010001734

U2 - 10.1103/PhysRevC.95.014310

DO - 10.1103/PhysRevC.95.014310

M3 - Article

AN - SCOPUS:85010001734

SN - 2469-9985

VL - 95

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014310

ER -

Ground-state properties of H 5 from the He 6 (d, He 3) H 5 reaction

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