科研之友
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摘要
A new class of twistor string theories was recently constructed by Abou-Zeid, Hull, and Mason. The most interesting one of these theories has the particle content of N = 8 supergravity. Arguments are given for the vanishing of the ( + - -)-helicity amplitude for gravitons which suggest that this theory describes a chiral N = 8 supergravity rather than Einstein supergravity.
- 出版日期2008-8
