42
I. J. Thompson
6
8
10
12
14
Incident He4 energy (MeV, lab)
0
500
1000
Elastic scattering (mb/sr)
23.192 deg
26.738 deg
29.418 deg
30.836 deg
36.999 deg
39.951 deg
42.62 deg
45.53 deg
0
2
4
6
8
1 0
1 2
1 4
1 6
1 8
2 0
He4 energy (MeV, lab)
0
50
100
150
200
250
Cross section (mb)
Fixed damping widths
Fitted (a,p) cross−section
E−dependent damping
Fig. 3 (Left) Fitted cross-sections 3 He(α, α) 3 He reaction to the data [15], without an explicit
p+ 6 Li channel, but with energy-dependent damping. (Right) Absorption cross-sections from the
elastic channel, with red, black, and blue lines from Eqs. (3), (2), and (4), respectively
Acknowledgments This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
References
1. A.M. Lane, R.G. Thomas, Rev. Mod. Phys. 30, 257 (1958). https://doi.org/10.1103/
RevModPhys.30.257. http://link.aps.org/doi/10.1103/RevModPhys.30.257
2. C.W. Reich, M.S. Moore, Phys. Rev. 111, 929 (1958). https://doi.org/10.1103/PhysRev.111.
929. https://link.aps.org/doi/10.1103/PhysRev.111.929
3. C.R. Brune, Phys. Rev. C 66, 044611 (2002). https://doi.org/10.1103/PhysRevC.66.044611
4. S. Kunieda, EPJ Web Conf. 146, 12029 (2017). https://doi.org/10.1051/epjconf/201714612029
5. E. Uberseder, R.J. deBoer, AZURE2 User Manual (2015). azure.nd.edu
6. I.J. Thompson, Comput. Phys. Rep. 7(4), 167 (1988). http://dx.doi.org/10.1016/01677977(88)90005-6. http://www.sciencedirect.com/science/article/pii/0167797788900056
7. N.M. Larson, Updated users’ guide for SAMMY: multilevel R-matrix fits to neutron data
using Bayes’ equations. Tech. Rep. ORNL/TM-9179/R8 (Oak Ridge National Laboratory, Oak
Ridge, 2008)
8. P. Archier, C. De Saint Jean, O. Litaize, G. Noguère, L. Berge, E. Privas, P. Tamagno,
Nucl. Data Sheets 118, 488 (2014). https://doi.org/10.1016/j.nds.2014.04.114. http://www.
sciencedirect.com/science/article/pii/S0090375214001446
9. I. Thompson, R. deBoer, P. Dimitriou, S. Kunieda, A. Pigni, G. Arbanas, H. Leeb, T. Srdinko,
G. Hale, P. Tamagno, P. Archier, Eur. Phys. J. A 55(6), 92 (2019). https://doi.org/10.1140/epja/
i2019-12753-y
10. P. Dimitriou, R.J. DeBoer, S. Kunieda, H. Leeb, M. Paris, T. Srdinko, I.J. Thompson, Summary
Report of Consultants’ Meeting about “R-matrix codes for charged-particle reactions in
the resolved resonance region”. Tech. Rep. INDC(NDS)-0703 (International Atomic Energy
Agency, Vienna, 2016). https://www-nds.iaea.org/publications/indc/indc-nds-0703.pdf
I. J. Thompson
6
8
10
12
14
Incident He4 energy (MeV, lab)
0
500
1000
Elastic scattering (mb/sr)
23.192 deg
26.738 deg
29.418 deg
30.836 deg
36.999 deg
39.951 deg
42.62 deg
45.53 deg
0
2
4
6
8
1 0
1 2
1 4
1 6
1 8
2 0
He4 energy (MeV, lab)
0
50
100
150
200
250
Cross section (mb)
Fixed damping widths
Fitted (a,p) cross−section
E−dependent damping
Fig. 3 (Left) Fitted cross-sections 3 He(α, α) 3 He reaction to the data [15], without an explicit
p+ 6 Li channel, but with energy-dependent damping. (Right) Absorption cross-sections from the
elastic channel, with red, black, and blue lines from Eqs. (3), (2), and (4), respectively
Acknowledgments This work was performed under the auspices of the U.S. Department of
Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344
References
1. A.M. Lane, R.G. Thomas, Rev. Mod. Phys. 30, 257 (1958). https://doi.org/10.1103/
RevModPhys.30.257. http://link.aps.org/doi/10.1103/RevModPhys.30.257
2. C.W. Reich, M.S. Moore, Phys. Rev. 111, 929 (1958). https://doi.org/10.1103/PhysRev.111.
929. https://link.aps.org/doi/10.1103/PhysRev.111.929
3. C.R. Brune, Phys. Rev. C 66, 044611 (2002). https://doi.org/10.1103/PhysRevC.66.044611
4. S. Kunieda, EPJ Web Conf. 146, 12029 (2017). https://doi.org/10.1051/epjconf/201714612029
5. E. Uberseder, R.J. deBoer, AZURE2 User Manual (2015). azure.nd.edu
6. I.J. Thompson, Comput. Phys. Rep. 7(4), 167 (1988). http://dx.doi.org/10.1016/01677977(88)90005-6. http://www.sciencedirect.com/science/article/pii/0167797788900056
7. N.M. Larson, Updated users’ guide for SAMMY: multilevel R-matrix fits to neutron data
using Bayes’ equations. Tech. Rep. ORNL/TM-9179/R8 (Oak Ridge National Laboratory, Oak
Ridge, 2008)
8. P. Archier, C. De Saint Jean, O. Litaize, G. Noguère, L. Berge, E. Privas, P. Tamagno,
Nucl. Data Sheets 118, 488 (2014). https://doi.org/10.1016/j.nds.2014.04.114. http://www.
sciencedirect.com/science/article/pii/S0090375214001446
9. I. Thompson, R. deBoer, P. Dimitriou, S. Kunieda, A. Pigni, G. Arbanas, H. Leeb, T. Srdinko,
G. Hale, P. Tamagno, P. Archier, Eur. Phys. J. A 55(6), 92 (2019). https://doi.org/10.1140/epja/
i2019-12753-y
10. P. Dimitriou, R.J. DeBoer, S. Kunieda, H. Leeb, M. Paris, T. Srdinko, I.J. Thompson, Summary
Report of Consultants’ Meeting about “R-matrix codes for charged-particle reactions in
the resolved resonance region”. Tech. Rep. INDC(NDS)-0703 (International Atomic Energy
Agency, Vienna, 2016). https://www-nds.iaea.org/publications/indc/indc-nds-0703.pdf