Quark and gluon spin-2 form factors to two-loops in QCD
We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian |
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todo:paper_11266708_v2014_n2_p_DeFlorian2023-10-03T16:07:08Z Quark and gluon spin-2 form factors to two-loops in QCD De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. NLO Computations Phenomenology of Large extra dimensions We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-to- leadingorderQCDcorrections 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
NLO Computations Phenomenology of Large extra dimensions |
| spellingShingle |
NLO Computations Phenomenology of Large extra dimensions De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. Quark and gluon spin-2 form factors to two-loops in QCD |
| topic_facet |
NLO Computations Phenomenology of Large extra dimensions |
| description |
We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-to- leadingorderQCDcorrections 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. |
| format |
JOUR |
| author |
De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. |
| author_facet |
De Florian, D. Mahakhud, M. Mathews, P. Mazzitelli, J. Ravindran, V. |
| author_sort |
De Florian, D. |
| title |
Quark and gluon spin-2 form factors to two-loops in QCD |
| title_short |
Quark and gluon spin-2 form factors to two-loops in QCD |
| title_full |
Quark and gluon spin-2 form factors to two-loops in QCD |
| title_fullStr |
Quark and gluon spin-2 form factors to two-loops in QCD |
| title_full_unstemmed |
Quark and gluon spin-2 form factors to two-loops in QCD |
| title_sort |
quark and gluon spin-2 form factors to two-loops in qcd |
| url |
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian |
| work_keys_str_mv |
AT defloriand quarkandgluonspin2formfactorstotwoloopsinqcd AT mahakhudm quarkandgluonspin2formfactorstotwoloopsinqcd AT mathewsp quarkandgluonspin2formfactorstotwoloopsinqcd AT mazzitellij quarkandgluonspin2formfactorstotwoloopsinqcd AT ravindranv quarkandgluonspin2formfactorstotwoloopsinqcd |
| _version_ |
1782026267895267328 |