Experimental study of high-lying states in 28Mg  using the resonant elastic scattering of α particles

J. Walshe; M. Freer; C. Wheldon; A. Soylu; N. L. Achouri; N. I. Ashwood; W. N. Catford; I. C. Celik; N. Curtis; F. Delaunay; B. Fernández-Domínguez; L. Grassi; Tzanka Kokalova Wheldon; F. M. Marqués; N. A. Orr; L. Prepolec; V. Scuderi; N. Soić; V. Tokić

doi:10.1103/PhysRevC.94.054304

Experimental study of high-lying states in ²⁸Mg using the resonant elastic scattering of α particles

J. Walshe^*, M. Freer, C. Wheldon, A. Soylu, N. L. Achouri, N. I. Ashwood, W. N. Catford, I. C. Celik, N. Curtis, F. Delaunay, B. Fernández-Domínguez, L. Grassi, Tzanka Kokalova Wheldon, F. M. Marqués, N. A. Orr, L. Prepolec, V. Scuderi, N. Soić, V. Tokić

^*Corresponding author for this work

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Abstract

The excitation function of Mg28 above the α-decay threshold has been measured for the first time using the resonant scattering of α particles with the technique of a thick target in inverse kinematics. Thirteen new states are reported between Ex=15.5 and Ex=20.5 MeV, and suggestions for spin-parity assignments are given for two of these. Calculations of the branching ratio to α decay for these states as well as comparison of the measured cross sections to calculations suggest that α+Neg.s.24 clustering is not dominant in this energy regime.

Original language	English
Article number	054304
Journal	Physical Review C
Volume	94
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevC.94.054304
Publication status	Published - 4 Nov 2016

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.94.054304Licence: None: All rights reserved

Walshe_et_al_Experimental_study_Physical_Review_C_2016_accepted_versionAccepted author manuscript, 4.43 MB

Birmingham Nuclear Physics Group Consolidated Grant
Jones, P., Evans, P., Freer, M. & Wheldon, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/08/14 → 30/09/18
Project: Research Councils
Birmingham Nuclear Physics Consolidated Grant
Freer, M., Evans, P., Jones, P., Wheldon, C. & Lazzeroni, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/08/11 → 31/07/14
Project: Research Councils
Nuclear Structure, Astrophysics and Reactions (NuSTAR) at FAIR
Freer, M. & Tungate, G.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/07/09 → 31/03/15
Project: Research Councils
Advanced Fellowship - Dr Carl Wheldon
Wheldon, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
29/10/07 → 28/10/12
Project: Research

Cite this

Walshe, J., Freer, M., Wheldon, C., Soylu, A., Achouri, N. L., Ashwood, N. I., Catford, W. N., Celik, I. C., Curtis, N., Delaunay, F., Fernández-Domínguez, B., Grassi, L., Kokalova Wheldon, T., Marqués, F. M., Orr, N. A., Prepolec, L., Scuderi, V., Soić, N., & Tokić, V. (2016). Experimental study of high-lying states in ²⁸Mg using the resonant elastic scattering of α particles. Physical Review C, 94(5), Article 054304. https://doi.org/10.1103/PhysRevC.94.054304

@article{03880e2ec01b493c85bdcbd46212bacb,

title = "Experimental study of high-lying states in 28Mg using the resonant elastic scattering of α particles",

abstract = "The excitation function of Mg28 above the α-decay threshold has been measured for the first time using the resonant scattering of α particles with the technique of a thick target in inverse kinematics. Thirteen new states are reported between Ex=15.5 and Ex=20.5 MeV, and suggestions for spin-parity assignments are given for two of these. Calculations of the branching ratio to α decay for these states as well as comparison of the measured cross sections to calculations suggest that α+Neg.s.24 clustering is not dominant in this energy regime.",

author = "J. Walshe and M. Freer and C. Wheldon and A. Soylu and Achouri, {N. L.} and Ashwood, {N. I.} and Catford, {W. N.} and Celik, {I. C.} and N. Curtis and F. Delaunay and B. Fern{\'a}ndez-Dom{\'i}nguez and L. Grassi and {Kokalova Wheldon}, Tzanka and Marqu{\'e}s, {F. M.} and Orr, {N. A.} and L. Prepolec and V. Scuderi and N. Soi{\'c} and V. Toki{\'c}",

year = "2016",

month = nov,

day = "4",

doi = "10.1103/PhysRevC.94.054304",

language = "English",

volume = "94",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society (APS)",

number = "5",

}

Walshe, J, Freer, M , Wheldon, C, Soylu, A, Achouri, NL, Ashwood, NI, Catford, WN, Celik, IC, Curtis, N, Delaunay, F, Fernández-Domínguez, B, Grassi, L, Kokalova Wheldon, T, Marqués, FM, Orr, NA, Prepolec, L, Scuderi, V, Soić, N & Tokić, V 2016, 'Experimental study of high-lying states in ²⁸Mg using the resonant elastic scattering of α particles', Physical Review C, vol. 94, no. 5, 054304. https://doi.org/10.1103/PhysRevC.94.054304

TY - JOUR

T1 - Experimental study of high-lying states in 28Mg using the resonant elastic scattering of α particles

AU - Walshe, J.

AU - Freer, M.

AU - Wheldon, C.

AU - Soylu, A.

AU - Achouri, N. L.

AU - Ashwood, N. I.

AU - Catford, W. N.

AU - Celik, I. C.

AU - Curtis, N.

AU - Delaunay, F.

AU - Fernández-Domínguez, B.

AU - Grassi, L.

AU - Kokalova Wheldon, Tzanka

AU - Marqués, F. M.

AU - Orr, N. A.

AU - Prepolec, L.

AU - Scuderi, V.

AU - Soić, N.

AU - Tokić, V.

PY - 2016/11/4

Y1 - 2016/11/4

N2 - The excitation function of Mg28 above the α-decay threshold has been measured for the first time using the resonant scattering of α particles with the technique of a thick target in inverse kinematics. Thirteen new states are reported between Ex=15.5 and Ex=20.5 MeV, and suggestions for spin-parity assignments are given for two of these. Calculations of the branching ratio to α decay for these states as well as comparison of the measured cross sections to calculations suggest that α+Neg.s.24 clustering is not dominant in this energy regime.

AB - The excitation function of Mg28 above the α-decay threshold has been measured for the first time using the resonant scattering of α particles with the technique of a thick target in inverse kinematics. Thirteen new states are reported between Ex=15.5 and Ex=20.5 MeV, and suggestions for spin-parity assignments are given for two of these. Calculations of the branching ratio to α decay for these states as well as comparison of the measured cross sections to calculations suggest that α+Neg.s.24 clustering is not dominant in this energy regime.

UR - http://www.scopus.com/inward/record.url?scp=84994651150&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.94.054304

DO - 10.1103/PhysRevC.94.054304

M3 - Article

AN - SCOPUS:84994651150

SN - 0556-2813

VL - 94

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 054304

ER -

Experimental study of high-lying states in 28Mg using the resonant elastic scattering of α particles

Abstract

ASJC Scopus subject areas

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Projects

Birmingham Nuclear Physics Group Consolidated Grant

Birmingham Nuclear Physics Consolidated Grant

Nuclear Structure, Astrophysics and Reactions (NuSTAR) at FAIR

Advanced Fellowship - Dr Carl Wheldon

Cite this

Experimental study of high-lying states in ²⁸Mg using the resonant elastic scattering of α particles