Geodesic
Infrared finite observables in $\mathcal N=8$ supergravity
Trudy Matematicheskogo Instituta imeni V.A. Steklova, Problems of modern theoretical and mathematical physics: Gauge theories and superstrings, Tome 272 (2011), pp. 46-53

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Using the algorithm of constructing the IR finite observables discussed in detail in our earlier papers, we study the construction of such observables in $\mathcal N=8$ supergravity in the first nontrivial order of perturbation theory. In general, contrary to the amplitudes defined in the presence of some IR regulator, such observables do not reveal any “simple” structure. 
@article{TM_2011_272_a4,
     author = {L. V. Bork and D. I. Kazakov and G. S. Vartanov and A. V. Zhiboedov},
     title = {Infrared finite observables in $\mathcal N=8$ supergravity},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {46--53},
     publisher = {mathdoc},
     volume = {272},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2011_272_a4/}
}
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L. V. Bork; D. I. Kazakov; G. S. Vartanov; A. V. Zhiboedov. Infrared finite observables in $\mathcal N=8$ supergravity. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Problems of modern theoretical and mathematical physics: Gauge theories and superstrings, Tome 272 (2011), pp. 46-53. http://geodesic.mathdoc.fr/item/TM_2011_272_a4/