期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP02(2014)035
关键词
NLO Computations; Phenomenology of Large extra dimensions
资金
- UBACYT
- CONICET
- ANPCyT
- Research Executive Agency (REA) of the European Union [PITN-GA-2010-264564]
We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* -> q (q) over bar and graviton-gluon-gluon form factor G* -> g g in SU(N) gauge theory with n(f) light flavours using d-dimensional regularisation to all orders in epsilon - d-4. This is an important ingredient to next-to-next-to-leading order QC[) corrections to hadronic scattering processes in models with large extra-dimensions where Kaluza-Klein graviton modes couple to Standard Model fields. We show that these form factors obey Sudakov integro-differential equation and the resulting cusp, collinear and soft anomalous dimensions coincide with those of electroweak vector boson and gluon form factors. We also find the universal behaviour of the infrared singularities in accordance with the proposal by Catani.
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