Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-07-03
Nucl.Phys.B758:53-89,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
52 pages, 38 figures and LaTeX file. Codes are available up request; minor corrections, references added, to be published in N
Scientific paper
10.1016/j.nuclphysb.2006.09.006
The rational parts of 6-gluon one-loop amplitudes with scalars circulating in the loop are computed by using the newly developed method for computing the rational parts directly from Feynman integrals. We present the analytic results for the two MHV helicity configurations: $(1^-2^+3^+4^-5^+6^+)$ and $(1^-2^+3^-4^+5^+6^+)$, and the two NMHV helicity configurations: $(1^-2^-3^+4^-5^+6^+)$ and $(1^-2^+3^-4^+5^-6^+)$. Combined with the previously computed results for the cut-constructible part, our results are the last missing pieces for the complete partial helicity amplitudes of the 6-gluon one-loop QCD amplitude.
Xiao Zhi-Guang
Yang Gang
Zhu Chuan-Jie
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