A new measurement of the astrophysical 8Li(d, t)7Li reaction

T. Hashimoto; H. Ishiyama; Y. X. Watanabe; Y. Hirayama; N. Imai; H. Miyatake; S. C. Jeong; M. H. Tanaka; N. Yoshikawa; T. Nomura; S. Mitsuoka; K. Nishio; T. K. Sato; A. Osa; S. Ichikawa; M. Matsuda; H. Ikezoe; S. K. Das; Y. Mizoi; T. Fukuda; A. Sato; T. Shimoda; K. Otsuki; T. Kajino

doi:10.1016/j.physletb.2009.03.031

A new measurement of the astrophysical ⁸Li(d, t)⁷Li reaction

T. Hashimoto^*
, H. Ishiyama
, Y. X. Watanabe
, Y. Hirayama
, N. Imai
, H. Miyatake
, S. C. Jeong
, M. H. Tanaka
, N. Yoshikawa
, T. Nomura
, S. Mitsuoka
, K. Nishio
, T. K. Sato
, A. Osa
, S. Ichikawa
, M. Matsuda
, H. Ikezoe
, S. K. Das
, Y. Mizoi
, T. Fukuda

A. Sato, T. Shimoda, K. Otsuki, T. Kajino

^*Corresponding author for this work

Japan Atomic Energy Agency
High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
Osaka Electro-Communication University
The University of Osaka
GSI Helmholtz Centre for Heavy Ion Research
National Astronomical Observatory of Japan

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

6 Scopus citations

Abstract

The excitation function of the ⁸Li(d, t)⁷Li reaction was directly measured using ⁸Li beam irradiating a deuterated polyethylene target at center-of-mass system beam energies (E_cm) between 0.3 and 1.2 MeV. This is the first cross section measurement of the above reaction below E_cm = 1.5 MeV, covering Gamow peaks for 1 - 3 × 10⁹ K of astrophysical interest. A broad resonance-like structure was observed at around E_cm = 0.8 MeV. The astrophysical reaction rate deduced from the present result is far larger than the previously reported values estimated from extrapolation of data observed at higher energies, roughly by one order of magnitude at about 1 × 10⁹ K.

Original language	English
Pages (from-to)	276-280
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	674
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2009.03.031
State	Published - 27 Apr 2009
Externally published	Yes

Keywords

Nuclear astrophysics
Nucleosynthesis
Radioactive nuclear beams

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10.1016/j.physletb.2009.03.031

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Hashimoto, T., Ishiyama, H., Watanabe, Y. X., Hirayama, Y., Imai, N., Miyatake, H., Jeong, S. C., Tanaka, M. H., Yoshikawa, N., Nomura, T., Mitsuoka, S., Nishio, K., Sato, T. K., Osa, A., Ichikawa, S., Matsuda, M., Ikezoe, H., Das, S. K., Mizoi, Y., ... Kajino, T. (2009). A new measurement of the astrophysical ⁸Li(d, t)⁷Li reaction. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 674(4-5), 276-280. https://doi.org/10.1016/j.physletb.2009.03.031

@article{364429f43e1749f8b2f48712e7c70eb3,

title = "A new measurement of the astrophysical 8Li(d, t)7Li reaction",

abstract = "The excitation function of the 8Li(d, t)7Li reaction was directly measured using 8Li beam irradiating a deuterated polyethylene target at center-of-mass system beam energies (Ecm) between 0.3 and 1.2 MeV. This is the first cross section measurement of the above reaction below Ecm = 1.5 MeV, covering Gamow peaks for 1 - 3 × 109 K of astrophysical interest. A broad resonance-like structure was observed at around Ecm = 0.8 MeV. The astrophysical reaction rate deduced from the present result is far larger than the previously reported values estimated from extrapolation of data observed at higher energies, roughly by one order of magnitude at about 1 × 109 K.",

keywords = "Nuclear astrophysics, Nucleosynthesis, Radioactive nuclear beams",

author = "T. Hashimoto and H. Ishiyama and Watanabe, \{Y. X.\} and Y. Hirayama and N. Imai and H. Miyatake and Jeong, \{S. C.\} and Tanaka, \{M. H.\} and N. Yoshikawa and T. Nomura and S. Mitsuoka and K. Nishio and Sato, \{T. K.\} and A. Osa and S. Ichikawa and M. Matsuda and H. Ikezoe and Das, \{S. K.\} and Y. Mizoi and T. Fukuda and A. Sato and T. Shimoda and K. Otsuki and T. Kajino",

year = "2009",

month = apr,

day = "27",

doi = "10.1016/j.physletb.2009.03.031",

language = "英语",

volume = "674",

pages = "276--280",

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

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "4-5",

}

Hashimoto, T, Ishiyama, H, Watanabe, YX, Hirayama, Y, Imai, N, Miyatake, H, Jeong, SC, Tanaka, MH, Yoshikawa, N, Nomura, T, Mitsuoka, S, Nishio, K, Sato, TK, Osa, A, Ichikawa, S, Matsuda, M, Ikezoe, H, Das, SK, Mizoi, Y, Fukuda, T, Sato, A, Shimoda, T, Otsuki, K & Kajino, T 2009, 'A new measurement of the astrophysical ⁸Li(d, t)⁷Li reaction', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 674, no. 4-5, pp. 276-280. https://doi.org/10.1016/j.physletb.2009.03.031

TY - JOUR

T1 - A new measurement of the astrophysical 8Li(d, t)7Li reaction

AU - Hashimoto, T.

AU - Ishiyama, H.

AU - Watanabe, Y. X.

AU - Hirayama, Y.

AU - Imai, N.

AU - Miyatake, H.

AU - Jeong, S. C.

AU - Tanaka, M. H.

AU - Yoshikawa, N.

AU - Nomura, T.

AU - Mitsuoka, S.

AU - Nishio, K.

AU - Sato, T. K.

AU - Osa, A.

AU - Ichikawa, S.

AU - Matsuda, M.

AU - Ikezoe, H.

AU - Das, S. K.

AU - Mizoi, Y.

AU - Fukuda, T.

AU - Sato, A.

AU - Shimoda, T.

AU - Otsuki, K.

AU - Kajino, T.

PY - 2009/4/27

Y1 - 2009/4/27

N2 - The excitation function of the 8Li(d, t)7Li reaction was directly measured using 8Li beam irradiating a deuterated polyethylene target at center-of-mass system beam energies (Ecm) between 0.3 and 1.2 MeV. This is the first cross section measurement of the above reaction below Ecm = 1.5 MeV, covering Gamow peaks for 1 - 3 × 109 K of astrophysical interest. A broad resonance-like structure was observed at around Ecm = 0.8 MeV. The astrophysical reaction rate deduced from the present result is far larger than the previously reported values estimated from extrapolation of data observed at higher energies, roughly by one order of magnitude at about 1 × 109 K.

AB - The excitation function of the 8Li(d, t)7Li reaction was directly measured using 8Li beam irradiating a deuterated polyethylene target at center-of-mass system beam energies (Ecm) between 0.3 and 1.2 MeV. This is the first cross section measurement of the above reaction below Ecm = 1.5 MeV, covering Gamow peaks for 1 - 3 × 109 K of astrophysical interest. A broad resonance-like structure was observed at around Ecm = 0.8 MeV. The astrophysical reaction rate deduced from the present result is far larger than the previously reported values estimated from extrapolation of data observed at higher energies, roughly by one order of magnitude at about 1 × 109 K.

KW - Nuclear astrophysics

KW - Nucleosynthesis

KW - Radioactive nuclear beams

UR - https://www.scopus.com/pages/publications/63749106931

U2 - 10.1016/j.physletb.2009.03.031

DO - 10.1016/j.physletb.2009.03.031

M3 - 文章

AN - SCOPUS:63749106931

SN - 0370-2693

VL - 674

SP - 276

EP - 280

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

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

IS - 4-5

ER -

A new measurement of the astrophysical ⁸Li(d, t)⁷Li reaction

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Keywords

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