Alan A. Chen
PhD 2000, Yale University
BSc 1993, University of Toronto

Contact Information

Department of Physics and Astronomy
McMaster University
1280 Main St. West
Hamilton ON, L8S 4M1

Office: Arthur Bournes Building - Office: 260A
Phone: (905)525-9140 ext. 27096
Fax: (905)546-1252

Research Group

Teaching (on sabbatical leave in 2015)

Research Interests

Experimental nuclear astrophysics; explosive stellar nucleosynthesis; measurement of reaction cross sections and relevant nuclear level parameters; direct measurements with radioactive ion beams; indirect approaches with transfer reactions and in-beam gamma-ray spectroscopy; nuclear reactions; group leader for experiments planned for, and carried out at, TRIUMF, NSCL, Yale University, University of Tokyo (CNS), Technical University of Munich, Argonne National Laboratory, University of Tsukuba; evaluation and dissemination of stellar reaction rates.

Selected Publications (last six years)

Isospin mixing reveals 30P(p,gamma)31S resonance influencing nova nucleosynthesis
M. B. Bennett, C. Wrede, B. A. Brown, S. N. Liddick, D. Perez-Loureiro, D. W. Bardayan, A. A. Chen, K. A. Chipps, C. Fry, B. E. Glassman, C. Langer, N. R. Larson, E. I. McNeice, Z. Meisel, W. Ong, P. D. O'Malley, S. D. Pain, C. J. Prokop, H. Schatz, S. B. Schwartz, S. Suchyta, P. Thompson, M. Walters, and X. Xu.
Physical Review Letters 116 102502 (2016)

Evidence of soft dipole resonance in 11Li with isoscalar character
R. Kanungo, A. Sanetullaev, J. Tanaka, S. Ishimoto, G. Hagen, T. Myo, T. Suzuki, C. Andreiou, P. Bender, A. A. Chen, B. Davids, J. Fallis, J. P. Fortin, N. Galinski, A. T. Gallant, P. E. Garrett, G. Hackman, B. Hadinia, G. Jansen, M. Keefe, R. Kruecken, J. Lighthall, E. McNeice, D. Miller, T. Otsuka, J. Purcell, J. S. Randhawa, T. Roger, A. Rojas, H. Savajols, A. Shotter, I. Tanihata, I. J. Thompson, C. Unsworth, P. Voss, and Z. Wang.
Physical Review Letters 114 192502 (2015)

Discovery of 34g,mCl(p,gamma)35Ar resonances activated at classical nova temperatures
C. Fry, C. Wrede, S. Bishop, B. A. Brown, A. A. Chen, T. Faestermann, R. Hertenberger, A. Parikh, D. Perez-Loureiro, H.-F Wirth, A. Garcia, and R. Ortez
Physical Review C 91 015803 (2015)

Examination of the role of the 14O(alpha,p)17F reaction rate in type-I x-ray bursts
J. Hu, J. J. He, A. Parikh, S. W. Xu, H. Yamaguchi, K. David, P. Ma, J. Su, H. W. Wang, T. Nakao, Y. Wakabayashi, T. Teranishi, J. Y. Moon, H. S. Jung, T. Hashimoto, A. Chen, D. Irvine, and S. Kubono.
Physical Review C 90 025803 (2014)

In-beam gamma-ray spectroscopy of 30P via the 28Si(3He, p-gamma)30P reaction
E. McNeice, K. Setoodehnia, B. Singh, Y. Abe, D.N. Binh, A. A. Chen, J. Chen, S. Cherubini, S. Fukuoka, T. Hashimoto, T. Hayakawa, Y. Ishibashi, Y. Ito, D. Kahl, T. Komatsubara, S. Kubono, T. Mori guchi, D. Nagae, R. Nishikiori, T. Niwa, A. Ozawa, T. Shizuma, H. Suzuki, H. Yamaguchi, and T. Yuasa.
Nuclear Data Sheets 120 88 (2014)

Classical-Nova Contribution to the Milky Way's 26Al Abundance: Exit Channel of the Key 25Al(p,gamma)26Si Resonance
M. B. Bennett, C. Wrede, K. A. Chipps, J. Jose, N. Liddick, M. Santia, A. Bowe, A. A. Chen, N. Cooper, D. Irvine, E. McNeice, F. Montes, F. Naqvi, R. Ortez, S. D. Pain, J. Pereira, C. Prokop, J. Quaglia, S. J. Quinn, S. B. Schwartz, S. Shanab, A. Simon, A. Spyrou, and E. Thiagalingam.
Physical Review Letters 111 232503 (2013)

Evidence for the existence of the astrophysically important 6.40-MeV state of 31S
D. Irvine, A. A. Chen, A. Parikh, K. Setoodehnia, T. Faestermann, R. Hertenberger, H.-F. Wirth, V. Bildstein, S. Bishop, J. A. Clark, C. M. Deibel, J. Hendriks, C. Herlitzius, R. Kruecken, W. N. Lennard, O. Lepyoshkina, R. Longland, G. Rugel, D. Seiler, K. Straub, and C. Wrede.
Physical Review C 88 055803 (2013)

Nuclear structure of 30S and its implications for nucleosynthesis in classical novae
K. Setoodehnia, A. A. Chen, D. Kahl, T. Komatsubara, J. Jose, R. Longland, Y. Abe, D. N. Binh, J. Chen, S. Cherubini, J. A. Clark, C. M. Deibel, S. Fukuoka, T. Hashimoto, T. Hayakawa, J. Hendriks, Y. Ishibashi, Y. Ito, S. Kubono, W. N. Lennard, T. Moriguchi, D. Nagae, R. Nishikiori, T. Niwa, A. Ozawa, P. D. Parker, D. Seiler, T. Shizuma, H. Suzuki, C. Wrede, H. Yamaguchi, and T. Yuasa.
Physical Review C 87 065801 (2013)

Is gamma-ray emission from novae affected by interference effects in the 18F(p,alpha)15O reaction?
A. M. Laird, A. Parikh, A. St. J. Murphy, K. Wimmer, A. A. Chen, C. M. Deibel, T. Faestermann, S. P. Fox, B. R. Fulton, R. Hertenberger, D. Irvine, J. Jose, R. Longland, D. Mountford, B. Sambrook, D. Seiler, and H.-F. Wirth.
Physical Review Letters 110 032502 (2013)

26Si excited states via one-neutron removal from a 27Si radioactive ion beam
J. Chen, A. A. Chen, A. M. Amthor, D. Bazin, A. D. Becerril, A. Gade, D. Galaviz, T. Glasmacher, D. Kahl, G. Lorusso, M. Matos, C. V. Ouellet, J. Pereira, H. Schatz, K. Smith, B. Wales, D. Weisshaar, and R. G. T. Zegers.
Physical Review C 85 045809 (2012)

Strong 25Al+p resonances via elastic proton scattering with a radioactive 25 Al beam
J. Chen, A. A. Chen, G. Amadio, S. Cherubini, H. Fujikawa, S. Hayakawa, J. J. He, N. Iwasa, D. Kahl, L. H. Khiem, S. Kubono, S. Kurihara, Y. K. Kwon, M. La Cognata, J. Y. Moon, M. Niikura, S. Nishimura, J. Pearson, R. G. Pizzone, T. Teranishi, Y. Togano, Y. Wakabayashi, and H. Yamaguchi.
Physical Review C 85 015805 (2012)

Improving the 30P(p,gamma)31S rate in oxygen-neon novae: Constraints on J-Pi values for proton-threshold states in 31S
A. Parikh, K. Wimmer, T. Faestermann, R. Hertenberger, J. Jose, R. Longland, H.-F. Wirth, V. Bildstein, S. Bishop, A. A. Chen, J. A. Clark, C. M. Deibel, C. Herlitzius, R. Kruecken, D. Seiler, K. Straub, and C. Wrede.
Physical Review C 83 045806 (2011)

Spins and parities of astrophysically important 30S states from 28Si(3He, n-gamma)30S
K. Setoodehnia, A. A. Chen, T. Komatsubara, S. Kubono, D. N. Binh, J. F. Carpino, J. Chen, T. Hashimoto, T. Hayakawa, Y. Ishibashi, Y. Ito, D. Kahl, T. Moriguchi, H. Ooishi, A. Ozawa, T. Shizuma, Y. Sugiyama, and H. Yamaguchi.
Physical Review C 83 018803 (2011)