Cross sections and reaction rates of d + 8Li reactions involved in Big Bang nucleosynthesis

M. J. Balbes; M. M. Farrell; R. N. Boyd; X. Gu; M. Hencheck; J. D. Kalen; C. A. Mitchell; J. J. Kolata; K. Lamkin; R. Smith; R. Tighe; K. Ashktorab; F. D. Becchetti; J. Brown; D. Roberts; T. F. Wang; D. Humphrey; G. Vourvopoulos; M. S. Islam

doi:10.1016/0375-9474(94)00484-5

Cross sections and reaction rates of d + ⁸Li reactions involved in Big Bang nucleosynthesis

M. J. Balbes
, M. M. Farrell
, R. N. Boyd
, X. Gu
, M. Hencheck
, J. D. Kalen
, C. A. Mitchell
, J. J. Kolata
, K. Lamkin
, R. Smith
, R. Tighe
, K. Ashktorab
, F. D. Becchetti
, J. Brown
, D. Roberts
, T. F. Wang
, D. Humphrey
, G. Vourvopoulos
, M. S. Islam

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

13 Scopus citations

Abstract

We have measured angular distributions of the ²H(⁸Li, ⁷Li)³H and ²H(⁸Li, ⁹Be)n reactions at E_c.m. = 1.5 to 2.8 MeV using an ⁸Li- radioactive-beam technique. Astrophysical S-factors and reaction rates were calculated form the measured cross sections. Although the ²H(⁸Li, ⁹Be)n cross section is small, it can contribute to ⁹Be synthesis. The ²H(⁸Li, ⁷Li)³H reaction has a sufficiently large cross section to destroy ⁸Li, which may decrease the synthesis of heavier elements. No products from the ²H(⁸Li, ⁹Li)p reaction were detected. We also present the results of calculations using the inhomogeneous model of primordial nucleosynthesis in several regions of parameter space.

Original language	English (US)
Pages (from-to)	315-334
Number of pages	20
Journal	Nuclear Physics, Section A
Volume	584
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(94)00484-5
State	Published - Feb 20 1995
Externally published	Yes

Keywords

deduced reaction rates
E = 8-14 MeV
measured σ(E, θ)
Nuclear reactions H(Li, Li), (Li, Be), (Li, Li)

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0375-9474(94)00484-5

Cite this

Balbes, M. J., Farrell, M. M., Boyd, R. N., Gu, X., Hencheck, M., Kalen, J. D., Mitchell, C. A., Kolata, J. J., Lamkin, K., Smith, R., Tighe, R., Ashktorab, K., Becchetti, F. D., Brown, J., Roberts, D., Wang, T. F., Humphrey, D., Vourvopoulos, G., & Islam, M. S. (1995). Cross sections and reaction rates of d + ⁸Li reactions involved in Big Bang nucleosynthesis. Nuclear Physics, Section A, 584(2), 315-334. https://doi.org/10.1016/0375-9474(94)00484-5

Balbes, MJ, Farrell, MM, Boyd, RN, Gu, X, Hencheck, M, Kalen, JD, Mitchell, CA, Kolata, JJ, Lamkin, K, Smith, R, Tighe, R, Ashktorab, K, Becchetti, FD, Brown, J, Roberts, D, Wang, TF, Humphrey, D, Vourvopoulos, G & Islam, MS 1995, 'Cross sections and reaction rates of d + ⁸Li reactions involved in Big Bang nucleosynthesis', Nuclear Physics, Section A, vol. 584, no. 2, pp. 315-334. https://doi.org/10.1016/0375-9474(94)00484-5

@article{f2f5ee7c343941beaca801579805294d,

title = "Cross sections and reaction rates of d + 8Li reactions involved in Big Bang nucleosynthesis",

abstract = "We have measured angular distributions of the 2H(8Li, 7Li)3H and 2H(8Li, 9Be)n reactions at Ec.m. = 1.5 to 2.8 MeV using an 8Li- radioactive-beam technique. Astrophysical S-factors and reaction rates were calculated form the measured cross sections. Although the 2H(8Li, 9Be)n cross section is small, it can contribute to 9Be synthesis. The 2H(8Li, 7Li)3H reaction has a sufficiently large cross section to destroy 8Li, which may decrease the synthesis of heavier elements. No products from the 2H(8Li, 9Li)p reaction were detected. We also present the results of calculations using the inhomogeneous model of primordial nucleosynthesis in several regions of parameter space.",

keywords = "deduced reaction rates, E = 8-14 MeV, measured σ(E, θ), Nuclear reactions H(Li, Li), (Li, Be), (Li, Li)",

author = "Balbes, \{M. J.\} and Farrell, \{M. M.\} and Boyd, \{R. N.\} and X. Gu and M. Hencheck and Kalen, \{J. D.\} and Mitchell, \{C. A.\} and Kolata, \{J. J.\} and K. Lamkin and R. Smith and R. Tighe and K. Ashktorab and Becchetti, \{F. D.\} and J. Brown and D. Roberts and Wang, \{T. F.\} and D. Humphrey and G. Vourvopoulos and Islam, \{M. S.\}",

year = "1995",

month = feb,

day = "20",

doi = "10.1016/0375-9474(94)00484-5",

language = "English (US)",

volume = "584",

pages = "315--334",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Cross sections and reaction rates of d + 8Li reactions involved in Big Bang nucleosynthesis

AU - Balbes, M. J.

AU - Farrell, M. M.

AU - Boyd, R. N.

AU - Gu, X.

AU - Hencheck, M.

AU - Kalen, J. D.

AU - Mitchell, C. A.

AU - Kolata, J. J.

AU - Lamkin, K.

AU - Smith, R.

AU - Tighe, R.

AU - Ashktorab, K.

AU - Becchetti, F. D.

AU - Brown, J.

AU - Roberts, D.

AU - Wang, T. F.

AU - Humphrey, D.

AU - Vourvopoulos, G.

AU - Islam, M. S.

PY - 1995/2/20

Y1 - 1995/2/20

N2 - We have measured angular distributions of the 2H(8Li, 7Li)3H and 2H(8Li, 9Be)n reactions at Ec.m. = 1.5 to 2.8 MeV using an 8Li- radioactive-beam technique. Astrophysical S-factors and reaction rates were calculated form the measured cross sections. Although the 2H(8Li, 9Be)n cross section is small, it can contribute to 9Be synthesis. The 2H(8Li, 7Li)3H reaction has a sufficiently large cross section to destroy 8Li, which may decrease the synthesis of heavier elements. No products from the 2H(8Li, 9Li)p reaction were detected. We also present the results of calculations using the inhomogeneous model of primordial nucleosynthesis in several regions of parameter space.

AB - We have measured angular distributions of the 2H(8Li, 7Li)3H and 2H(8Li, 9Be)n reactions at Ec.m. = 1.5 to 2.8 MeV using an 8Li- radioactive-beam technique. Astrophysical S-factors and reaction rates were calculated form the measured cross sections. Although the 2H(8Li, 9Be)n cross section is small, it can contribute to 9Be synthesis. The 2H(8Li, 7Li)3H reaction has a sufficiently large cross section to destroy 8Li, which may decrease the synthesis of heavier elements. No products from the 2H(8Li, 9Li)p reaction were detected. We also present the results of calculations using the inhomogeneous model of primordial nucleosynthesis in several regions of parameter space.

KW - deduced reaction rates

KW - E = 8-14 MeV

KW - measured σ(E, θ)

KW - Nuclear reactions H(Li, Li), (Li, Be), (Li, Li)

UR - https://www.scopus.com/pages/publications/0346419863

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U2 - 10.1016/0375-9474(94)00484-5

DO - 10.1016/0375-9474(94)00484-5

M3 - Article

AN - SCOPUS:0346419863

SN - 0375-9474

VL - 584

SP - 315

EP - 334

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 2

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