First experimental constraint of the spectroscopic amplitudes for the α-cluster in the 11B ground state

Y. P. Shen; B. Guo; T. L. Ma; D. Y. Pang; D. D. Ni; Z. Z. Ren; Y. J. Li; Z. D. An; J. Su; J. C. Liu; Q. W. Fan; Z. Y. Han; X. Y. Li; Z. H. Li; G. Lian; Y. Su; Y. B. Wang; S. Q. Yan; S. Zeng; W. P. Liu

doi:10.1016/j.physletb.2019.134820

First experimental constraint of the spectroscopic amplitudes for the α-cluster in the ¹¹B ground state

Y. P. Shen
, B. Guo^*
, T. L. Ma
, D. Y. Pang
, D. D. Ni
, Z. Z. Ren
, Y. J. Li
, Z. D. An
, J. Su
, J. C. Liu
, Q. W. Fan
, Z. Y. Han
, X. Y. Li
, Z. H. Li
, G. Lian
, Y. Su
, Y. B. Wang
, S. Q. Yan
, S. Zeng
, W. P. Liu

^*Corresponding author for this work

School of Physics

China National Nuclear Corporation
Macau University of Science and Technology
Tongji University
Sun Yat-Sen University

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

17 Scopus citations

Abstract

We present the first experimental determination on the spectroscopic amplitudes (SAs) for the α-cluster in the B11 ground state via the Li7(Li6,d)¹¹B reaction using a high-precision magnetic spectrograph. This is believed to have a strong effect on the studies of α-induced reactions which are crucial in nuclear astrophysics. It is found that the previous SAs of B11 from shell model calculations cause overestimations of up to 23% for the C12(α,γ)¹⁶O S_E2(300) factor and up to 34% for the C13(α,n)¹⁶O S(190) factor with respect to the results from the present experimentally determined SAs. Due to the importance of these two reactions, for example the uncertainty in the C12(α,γ)¹⁶O cross section at E_c.m. = 300 keV is required to be better than 10% by stellar modeling, the new S-factors could result in a potential influence on the astrophysical network calculations.

Original language	English
Article number	134820
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	797
DOIs	https://doi.org/10.1016/j.physletb.2019.134820
State	Published - 10 Oct 2019

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Shen, Y. P., Guo, B., Ma, T. L., Pang, D. Y., Ni, D. D., Ren, Z. Z., Li, Y. J., An, Z. D., Su, J., Liu, J. C., Fan, Q. W., Han, Z. Y., Li, X. Y., Li, Z. H., Lian, G., Su, Y., Wang, Y. B., Yan, S. Q., Zeng, S., & Liu, W. P. (2019). First experimental constraint of the spectroscopic amplitudes for the α-cluster in the ¹¹B ground state. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 797, Article 134820. https://doi.org/10.1016/j.physletb.2019.134820

@article{35377934f99a49339e16affd0275b844,

title = "First experimental constraint of the spectroscopic amplitudes for the α-cluster in the 11B ground state",

abstract = "We present the first experimental determination on the spectroscopic amplitudes (SAs) for the α-cluster in the B11 ground state via the Li7(Li6,d)11B reaction using a high-precision magnetic spectrograph. This is believed to have a strong effect on the studies of α-induced reactions which are crucial in nuclear astrophysics. It is found that the previous SAs of B11 from shell model calculations cause overestimations of up to 23\% for the C12(α,γ)16O SE2(300) factor and up to 34\% for the C13(α,n)16O S(190) factor with respect to the results from the present experimentally determined SAs. Due to the importance of these two reactions, for example the uncertainty in the C12(α,γ)16O cross section at Ec.m. = 300 keV is required to be better than 10\% by stellar modeling, the new S-factors could result in a potential influence on the astrophysical network calculations.",

author = "Shen, \{Y. P.\} and B. Guo and Ma, \{T. L.\} and Pang, \{D. Y.\} and Ni, \{D. D.\} and Ren, \{Z. Z.\} and Li, \{Y. J.\} and An, \{Z. D.\} and J. Su and Liu, \{J. C.\} and Fan, \{Q. W.\} and Han, \{Z. Y.\} and Li, \{X. Y.\} and Li, \{Z. H.\} and G. Lian and Y. Su and Wang, \{Y. B.\} and Yan, \{S. Q.\} and S. Zeng and Liu, \{W. P.\}",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors",

year = "2019",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2019.134820",

language = "英语",

volume = "797",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Shen, YP, Guo, B, Ma, TL, Pang, DY, Ni, DD, Ren, ZZ, Li, YJ, An, ZD, Su, J, Liu, JC, Fan, QW, Han, ZY, Li, XY, Li, ZH, Lian, G, Su, Y, Wang, YB, Yan, SQ, Zeng, S & Liu, WP 2019, 'First experimental constraint of the spectroscopic amplitudes for the α-cluster in the ¹¹B ground state', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 797, 134820. https://doi.org/10.1016/j.physletb.2019.134820

TY - JOUR

T1 - First experimental constraint of the spectroscopic amplitudes for the α-cluster in the 11B ground state

AU - Shen, Y. P.

AU - Guo, B.

AU - Ma, T. L.

AU - Pang, D. Y.

AU - Ni, D. D.

AU - Ren, Z. Z.

AU - Li, Y. J.

AU - An, Z. D.

AU - Su, J.

AU - Liu, J. C.

AU - Fan, Q. W.

AU - Han, Z. Y.

AU - Li, X. Y.

AU - Li, Z. H.

AU - Lian, G.

AU - Su, Y.

AU - Wang, Y. B.

AU - Yan, S. Q.

AU - Zeng, S.

AU - Liu, W. P.

PY - 2019/10/10

Y1 - 2019/10/10

N2 - We present the first experimental determination on the spectroscopic amplitudes (SAs) for the α-cluster in the B11 ground state via the Li7(Li6,d)11B reaction using a high-precision magnetic spectrograph. This is believed to have a strong effect on the studies of α-induced reactions which are crucial in nuclear astrophysics. It is found that the previous SAs of B11 from shell model calculations cause overestimations of up to 23% for the C12(α,γ)16O SE2(300) factor and up to 34% for the C13(α,n)16O S(190) factor with respect to the results from the present experimentally determined SAs. Due to the importance of these two reactions, for example the uncertainty in the C12(α,γ)16O cross section at Ec.m. = 300 keV is required to be better than 10% by stellar modeling, the new S-factors could result in a potential influence on the astrophysical network calculations.

AB - We present the first experimental determination on the spectroscopic amplitudes (SAs) for the α-cluster in the B11 ground state via the Li7(Li6,d)11B reaction using a high-precision magnetic spectrograph. This is believed to have a strong effect on the studies of α-induced reactions which are crucial in nuclear astrophysics. It is found that the previous SAs of B11 from shell model calculations cause overestimations of up to 23% for the C12(α,γ)16O SE2(300) factor and up to 34% for the C13(α,n)16O S(190) factor with respect to the results from the present experimentally determined SAs. Due to the importance of these two reactions, for example the uncertainty in the C12(α,γ)16O cross section at Ec.m. = 300 keV is required to be better than 10% by stellar modeling, the new S-factors could result in a potential influence on the astrophysical network calculations.

UR - https://www.scopus.com/pages/publications/85070695015

U2 - 10.1016/j.physletb.2019.134820

DO - 10.1016/j.physletb.2019.134820

M3 - 文章

AN - SCOPUS:85070695015

SN - 0370-2693

VL - 797

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 134820

ER -

First experimental constraint of the spectroscopic amplitudes for the α-cluster in the ¹¹B ground state

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