Quadrupole deformation of C 16 studied by proton and deuteron inelastic scattering

RIBLL Collaboration

doi:10.1103/PhysRevC.101.024601

Quadrupole deformation of C 16 studied by proton and deuteron inelastic scattering

RIBLL Collaboration

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Abstract

New measurements of proton/deuteron elastic and inelastic scattering to the 21+ state of the neutron-rich nucleus C16 have been performed at Radioactive Ion Beam Line in Lanzhou (RIBLL) in inverse kinematics. The angular distributions of elastic scattering were well reproduced by the systematic optical potential with normalization factors for the depths of real and imaginary parts. The neutron and proton deformation lengths of δn=1.25±0.30 fm and δp=1.07±0.26 fm were extracted from the inelastic scattering data. The ratio of neutron and proton matrix element Mn/Mp=1.95±0.47 was determined from the two different probes. Within error bar, this result is in fair agreement with the previous measurements, demonstrating that the combination of proton and deuteron inelastic scattering offers a useful method to extract Mn/Mp for the even-even nuclei. Most of the theoretical predictions by the shell model using the MK, WBT, WBT∗, and YSOX interactions in p-sd model space and by the ab initio in-medium similarity renormalization group are close to these experimental results.

Original language	English
Article number	024601
Journal	Physical Review C
Volume	101
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.101.024601
State	Published - Feb 2020
Externally published	Yes

Funding

We gratefully thank the IMP accelerator group for providing the O 18 primary beam and the RIBLL collaboration for supplying a lot of electronics. We also thank Prof. H. T. Fortune for calculating M n / M p in a simple shell model. This work was supported by the National Key R&D Program of China (Grant No. 2018YFA0404403), and the National Natural Science Foundation of China (Contracts No. 11775004, No. U1867214, No. 11775013, No. 11775316, No. 11535004, No. 11875074, and No. 11875073), and Hirose International Scholarship Foundation.

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10.1103/PhysRevC.101.024601

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@article{8f3feee88bb841518d4690452959d7ef,

title = "Quadrupole deformation of C 16 studied by proton and deuteron inelastic scattering",

abstract = "New measurements of proton/deuteron elastic and inelastic scattering to the 21+ state of the neutron-rich nucleus C16 have been performed at Radioactive Ion Beam Line in Lanzhou (RIBLL) in inverse kinematics. The angular distributions of elastic scattering were well reproduced by the systematic optical potential with normalization factors for the depths of real and imaginary parts. The neutron and proton deformation lengths of δn=1.25±0.30 fm and δp=1.07±0.26 fm were extracted from the inelastic scattering data. The ratio of neutron and proton matrix element Mn/Mp=1.95±0.47 was determined from the two different probes. Within error bar, this result is in fair agreement with the previous measurements, demonstrating that the combination of proton and deuteron inelastic scattering offers a useful method to extract Mn/Mp for the even-even nuclei. Most of the theoretical predictions by the shell model using the MK, WBT, WBT∗, and YSOX interactions in p-sd model space and by the ab initio in-medium similarity renormalization group are close to these experimental results.",

author = "{RIBLL Collaboration} and Y. Jiang and Lou, {J. L.} and Ye, {Y. L.} and Y. Liu and Tan, {Z. W.} and W. Liu and B. Yang and Tao, {L. C.} and K. Ma and Li, {Z. H.} and Li, {Q. T.} and Yang, {X. F.} and Xu, {J. Y.} and Yu, {H. Z.} and Han, {J. X.} and Bai, {S. W.} and Huang, {S. W.} and G. Li and Wu, {H. Y.} and Zang, {H. L.} and J. Feng and Chen, {Z. Q.} and Chen, {Y. D.} and Q. Yuan and Li, {J. G.} and Hu, {B. S.} and Xu, {F. R.} and Wang, {J. S.} and Yang, {Y. Y.} and P. Ma and Q. Hu and Z. Bai and Gao, {Z. H.} and Duan, {F. F.} and Hu, {L. Y.} and Tan, {J. H.} and Sun, {S. Q.} and Song, {Y. S.} and Ong, {H. J.} and Tran, {D. T.} and Pang, {D. Y.} and Yuan, {C. X.}",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = feb,

doi = "10.1103/PhysRevC.101.024601",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

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TY - JOUR

T1 - Quadrupole deformation of C 16 studied by proton and deuteron inelastic scattering

AU - RIBLL Collaboration

AU - Jiang, Y.

AU - Lou, J. L.

AU - Ye, Y. L.

AU - Liu, Y.

AU - Tan, Z. W.

AU - Liu, W.

AU - Yang, B.

AU - Tao, L. C.

AU - Ma, K.

AU - Li, Z. H.

AU - Li, Q. T.

AU - Yang, X. F.

AU - Xu, J. Y.

AU - Yu, H. Z.

AU - Han, J. X.

AU - Bai, S. W.

AU - Huang, S. W.

AU - Li, G.

AU - Wu, H. Y.

AU - Zang, H. L.

AU - Feng, J.

AU - Chen, Z. Q.

AU - Chen, Y. D.

AU - Yuan, Q.

AU - Li, J. G.

AU - Hu, B. S.

AU - Xu, F. R.

AU - Wang, J. S.

AU - Yang, Y. Y.

AU - Ma, P.

AU - Hu, Q.

AU - Bai, Z.

AU - Gao, Z. H.

AU - Duan, F. F.

AU - Hu, L. Y.

AU - Tan, J. H.

AU - Sun, S. Q.

AU - Song, Y. S.

AU - Ong, H. J.

AU - Tran, D. T.

AU - Pang, D. Y.

AU - Yuan, C. X.

PY - 2020/2

Y1 - 2020/2

N2 - New measurements of proton/deuteron elastic and inelastic scattering to the 21+ state of the neutron-rich nucleus C16 have been performed at Radioactive Ion Beam Line in Lanzhou (RIBLL) in inverse kinematics. The angular distributions of elastic scattering were well reproduced by the systematic optical potential with normalization factors for the depths of real and imaginary parts. The neutron and proton deformation lengths of δn=1.25±0.30 fm and δp=1.07±0.26 fm were extracted from the inelastic scattering data. The ratio of neutron and proton matrix element Mn/Mp=1.95±0.47 was determined from the two different probes. Within error bar, this result is in fair agreement with the previous measurements, demonstrating that the combination of proton and deuteron inelastic scattering offers a useful method to extract Mn/Mp for the even-even nuclei. Most of the theoretical predictions by the shell model using the MK, WBT, WBT∗, and YSOX interactions in p-sd model space and by the ab initio in-medium similarity renormalization group are close to these experimental results.

AB - New measurements of proton/deuteron elastic and inelastic scattering to the 21+ state of the neutron-rich nucleus C16 have been performed at Radioactive Ion Beam Line in Lanzhou (RIBLL) in inverse kinematics. The angular distributions of elastic scattering were well reproduced by the systematic optical potential with normalization factors for the depths of real and imaginary parts. The neutron and proton deformation lengths of δn=1.25±0.30 fm and δp=1.07±0.26 fm were extracted from the inelastic scattering data. The ratio of neutron and proton matrix element Mn/Mp=1.95±0.47 was determined from the two different probes. Within error bar, this result is in fair agreement with the previous measurements, demonstrating that the combination of proton and deuteron inelastic scattering offers a useful method to extract Mn/Mp for the even-even nuclei. Most of the theoretical predictions by the shell model using the MK, WBT, WBT∗, and YSOX interactions in p-sd model space and by the ab initio in-medium similarity renormalization group are close to these experimental results.

UR - http://www.scopus.com/inward/record.url?scp=85079830665&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.101.024601

DO - 10.1103/PhysRevC.101.024601

M3 - Article

AN - SCOPUS:85079830665

SN - 2469-9985

VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024601

ER -

Quadrupole deformation of C 16 studied by proton and deuteron inelastic scattering

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