Reduction of open string amplitudes by mostly BRST exact operators
Reduction of open string amplitudes by mostly BRST exact operators
复制标题
主要通过 BRST 精确算子减少开弦振幅
DOI:
10.1016/j.physletb.2021.136664
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发表时间:
2021
影响因子:
4.4
通讯作者:
Takahashi Tomohiko
中科院分区:
文献类型:
--
作者:
Seki Shigenori;Takahashi Tomohiko
We study two and three-point tree-level amplitudes of open strings. These amplitudes are reduced from higher-point correlation functions by using mostly BRST exact operators for gauge fixing. For simplicity, we focus on an open string tachyon. The two-point amplitude of open string tachyons is reduced from a three-point function of two tachyon vertex operators and one mostly BRST exact operator. Similarly the three-point amplitude is from a four-point function of three tachyon vertex operators and one mostly BRST exact operator. One can also obtain the two-point amplitude from the four-point function of two tachyon vertex operators and two mostly BRST exact operators. In these derivation from four-point functions, moduli integrals are significant. We discuss the overall signs of amplitudes which are indefinite in this formalism.
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DOI:
--
发表时间:
2020
期刊:
arXiv: High Energy Physics - Theory
影响因子:
--
作者:
Sitender Pratap Kashyap
通讯作者:
Sitender Pratap Kashyap
影响因子:
5.4
作者:
Harold Erbin;J. Maldacena;D. Skliros
通讯作者:
D. Skliros
影响因子:
5.4
作者:
E. Witten
通讯作者:
E. Witten
影响因子:
5.4
作者:
Lorenz Eberhardt;Sridip Pal
通讯作者:
Sridip Pal