skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Experimental study of the astrophysically important Na 23 ( α , p ) Mg 26 and Na 23 ( α , n ) Al 26 reactions

Abstract

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.

Authors:
 [1];  [1];  [2];  [1];  [1];  [1];  [1];  [1];  [3];  [1];  [1];  [4];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Louisiana State Univ., Baton Rouge, LA (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1367272
Alternate Identifier(s):
OSTI ID: 1336868
Grant/Contract Number:  
AC02-06CH11357; FG02-96ER40978
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 94; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

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., and Ugalde, C. Experimental study of the astrophysically important Na23(α,p)Mg26 and Na23(α,n)Al26 reactions. United States: N. p., 2016. Web. doi:10.1103/PhysRevC.94.065804.
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. Experimental study of the astrophysically important Na23(α,p)Mg26 and Na23(α,n)Al26 reactions. United States. doi:10.1103/PhysRevC.94.065804.
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., and Ugalde, C. Mon . "Experimental study of the astrophysically important Na23(α,p)Mg26 and Na23(α,n)Al26 reactions". United States. doi:10.1103/PhysRevC.94.065804. https://www.osti.gov/servlets/purl/1367272.
@article{osti_1367272,
title = {Experimental study of the astrophysically important Na23(α,p)Mg26 and Na23(α,n)Al26 reactions},
author = {Avila, M. L. and Rehm, K. E. and Almaraz-Calderon, S. and Ayangeakaa, A. D. and Dickerson, C. and Hoffman, C. R. and Jiang, C. L. and Kay, B. P. and Lai, J. and Nusair, O. and Pardo, R. C. and Santiago-Gonzalez, D. and Talwar, R. and Ugalde, C.},
abstractNote = {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.},
doi = {10.1103/PhysRevC.94.065804},
journal = {Physical Review C},
number = 6,
volume = 94,
place = {United States},
year = {2016},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Total Neutron Yield from the Reactions C 13 ( α ,   n ) O 16 and O 1 7 , 1 8 ( α ,   n ) Ne 2 0 , 2 1
journal, April 1973


Thermonuclear reaction rates V
journal, November 1988


Astrophysical Reaction Rates From Statistical Model Calculations
journal, May 2000

  • Rauscher, Thomas; Thielemann, Friedrich-Karl
  • Atomic Data and Nuclear Data Tables, Vol. 75, Issue 1-2
  • DOI: 10.1006/adnd.2000.0834

Cross sections of α-induced reactions for targets with masses A ≈ 20–50 at low energies
journal, May 2015


SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

  • Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12
  • DOI: 10.1016/j.nimb.2010.02.091

The 26Mg(p, n)26Al and 23Na(α, n)26Al reactions near threshold
journal, June 1987


Direct Measurement of the Na 23 ( α , p ) Mg 26 Reaction Cross Section at Energies Relevant for the Production of Galactic Al 26
journal, April 2014


Measurements of Fusion Reactions of Low-Intensity Radioactive Carbon Beams on C 12 and their Implications for the Understanding of X-Ray Bursts
journal, May 2014


Multi-Sampling Ionization Chamber (MUSIC) for measurements of fusion reactions with radioactive beams
journal, November 2015

  • Carnelli, P. F. F.; Almaraz-Calderon, S.; Rehm, K. E.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 799
  • DOI: 10.1016/j.nima.2015.07.030

THE EFFECTS OF THERMONUCLEAR REACTION RATE VARIATIONS ON 26 Al PRODUCTION IN MASSIVE STARS: A SENSITIVITY STUDY
journal, March 2011

  • Iliadis, Christian; Champagne, Art; Chieffi, Alessandro
  • The Astrophysical Journal Supplement Series, Vol. 193, Issue 1
  • DOI: 10.1088/0067-0049/193/1/16

A compilation of charged-particle induced thermonuclear reaction rates
journal, August 1999


Radioactive 26Al from massive stars in the Galaxy
journal, January 2006

  • Diehl, Roland; Halloin, Hubert; Kretschmer, Karsten
  • Nature, Vol. 439, Issue 7072
  • DOI: 10.1038/nature04364

Na 23 ( α , p ) Mg 26 Reaction Rate at Astrophysically Relevant Energies
journal, July 2015


Measurement of Na 23 ( α , p ) Mg 26 at Energies Relevant to Al 26 Production in Massive Stars
journal, July 2015


LISE++: Radioactive beam production with in-flight separators
journal, October 2008

  • Tarasov, O. B.; Bazin, D.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 266, Issue 19-20
  • DOI: 10.1016/j.nimb.2008.05.110