13N and the implications for type Ia supernovae

R. G. T. Zegers,1,2,3,* E. F. Brown,1,2,3 H. Akimune,4 Sam M. Austin,1,3 A. M. van den Berg,5 B. A. Brown,1,2,3 D. A. Chamulak,2,3 Y. Fujita,6 M. Fujiwara,7,8 S. Galès,9 M. N. Harakeh,5 H. Hashimoto,8 R. Hayami,10 G. W. Hitt,1,2,3 M. Itoh,11 T. Kawabata,12 K. Kawase,8 M. Kinoshita,4 K. Nakanishi,8 S. Nakayama,10 S. Okumura,8 Y. Shimbara,1,3 M. Uchida,13 H. Ueno,14 T. Yamagata,4 and M. Yosoi8 1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321, USA 2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA 3Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824, USA 4Department of Physics, Konan University, Kobe, Hyogo, 658-8501, Japan 5Kernfysisch Versneller Instituut, University of Groningen, Zernikelaan 25, 9747 AA Groningen, The Netherlands 6Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan 7Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizu, Kyoto 619-0215, Japan 8Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan 9Institut de Physique Nucléaire, IN2P3-CNRS, Orsay, France 10Department of Physics, University of Tokushima, Tokushima 770-8502, Japan 11Cyclotron and Radioisotope Center, Tohoku University, Sendai, Miyagi 980-8578, Japan 12Center for Nuclear Study, University of Tokyo, RIKEN Campus, Wako, Saitama 351-0198, Japan 13Tokyo Institute of Technology, 2-12-1 O-Okayama, Tokyo 152-8550, Japan 14Applied Nuclear Physics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan (Received 12 October 2007; published 21 February 2008)