Experimental study of the astrophysically important Na23(α,p)Mg26 and Na23(α,n)Al26 reactions

Avila, M. L.; Rehm, K. E.; Almaraz-Calderon, S.; Ayangeakaa, A. D.; Dickerson, C.; Hoffman, C. R.; Jiang, C. L.; Kay, B. P.; Lai, J.; Nusair, O.; Pardo, R. C.; Santiago-Gonzalez, D.; Talwar, R.; Ugalde, C.

doi:10.1103/PhysRevC.94.065804

Experimental study of the astrophysically important ${}^{23}{Na} (α, p) {}^{26}{Mg}$ and ${}^{23}{Na} (α, n) {}^{26}{Al}$ reactions

Journal Article · Mon Dec 19 00:00:00 EST 2016 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.94.065804· OSTI ID:1367272

Avila, M. L. ^[1]; Rehm, K. E. ^[1]; Almaraz-Calderon, S. ^[2]; Ayangeakaa, A. D. ^[1]; Dickerson, C. ^[1]; Hoffman, C. R. ^[1]; Jiang, C. L. ^[1]; Kay, B. P. ^[1]; Lai, J. ^[3]; Nusair, O. ^[1]; Pardo, R. C. ^[1]; Santiago-Gonzalez, D. ^[4]; Talwar, R. ^[1]; Ugalde, C. ^[1]

Argonne National Lab. (ANL), Argonne, IL (United States)
Florida State Univ., Tallahassee, FL (United States)
Louisiana State Univ., Baton Rouge, LA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)

The ²³Na(α,p) ²⁶Mg and ²³Na(α,n) ²⁶Al reactions are important for our understanding of the ²⁶Al abundance in massive stars. The aim of this work is to report on a direct and simultaneous measurement of these astrophysically important reactions using an active target system. The reactions were investigated in inverse kinematics using ⁴He as the active target gas in the detector. We measured the excitation functions in the energy range of about 2 to 6 MeV in the center of mass. We have found that the cross sections of the ²³Na(α,p) ²⁶Mg and the ²³Na(α,n) ²⁶Al reactions are in good agreement with previous experiments and with statistical-model calculations. As a result, the astrophysical reaction rate of the ²³Na(α,n) ²⁶Al reaction has been reevaluated and it was found to be larger than the recommended rate.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: AC02-06CH11357; FG02-96ER40978

OSTI ID:: 1367272

Alternate ID(s):: OSTI ID: 1336868

Journal Information:: Physical Review C, Journal Name: Physical Review C Journal Issue: 6 Vol. 94; ISSN PRVCAN; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

Study of 26Mg through 1p pick-up reaction 27Al(d, 3 He) Srivastava, Vishal; Bhattacharya, C.; Rana, T. K. International Journal of Modern Physics E, Vol. 26, Issue 10 https://doi.org/10.1142/s0218301317500641	journal	October 2017

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