Unbound excited states in ^19,17C

详细信息    查看全文

• 作者：Y. Satou ; T. Nakamura ; N. Fukuda ; T. Sugimoto ; Y. Kondo ; N. Matsui ; Y. Hashimoto ; T. Nakabayashi ; T. Okumura ; M. Shinohara ; T. Motobayashi ; Y. Yanagisawa ; N. Aoi ; S. Takeuchi ; T. Gomi ; Y. Togano ; S. K
• 关键词：Holographic dark energy ; yle=""text-decoration ; none ; color ; black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6TVN-4RH94RT-4&_mathId=mml9&_user=10&_cdi=5539&_rdoc=5&_acct=C000050221&_version=1&_userid=10&md5=7ca657c5fc2619091d
• 刊名：Physics Letters B
• 出版年：2008
• 出版时间：28 February 2008
• 年：2008
• 卷：660
• 期：4
• 页码：320-325
• 全文大小：195 K

文摘

The neutron-rich carbon isotopes ^19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was employed to reconstruct the energy spectrum, in which fast neutrons and charged fragments were detected in coincidence using a neutron hodoscope and a dipole magnet system. A peak has been observed with an excitation energy of 1.46(10) MeV in ¹⁹C, while three peaks with energies of 2.20(3), 3.05(3), and 6.13(9) MeV have been observed in ¹⁷C. Deduced cross sections are compared with microscopic DWBA calculations based on p-sd shell model wave functions and modern nucleon–nucleus optical potentials. yle=""text-decoration:none; color:black"" href=""/science?_ob=MathURL&_method=retrieve&_udi=B6TVN-4RMFNWF-6&_mathId=mml19&_user=10&_cdi=5539&_rdoc=9&_acct=C000050221&_version=1&_userid=10&md5=7f9f1f4c01d0fe06a363efa0f7093e22"" title=""Click to view the MathML source"">J^π assignments are made for the four observed states as well as the ground states of both nuclei.