Conferencia
De Florian, D.; Mahakhud, M.; Mathews, P.; Mazzitelli, J.; Ravindran, V. "Quark and gluon spin-2 form factors to two loops in QCD" (2014) 12th International Conference on Loops and Legs in Quantum Field Theory, LL 2014. 2014-January
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Abstract:
We present two-loop QCD corrections to the quark form factor from the amplitude G∗ → qq¯ and the gluon form factor from G∗ → gg in SU(N) gauge theory with nf light flavours. We use ddimensional regularisation and the results are presented to all orders in ε = d - 4. These form factors can be used to obtain next-to-next-to-leading order QCD corrections to hadronic scattering processes in large extra-dimension model where Kaluza-Klein graviton modes couple to Standard Model fields. We find that the form factors satisfy Sudakov integro-differential equation and the resulting cusp, collinear and soft anomalous dimensions are identical to those of electroweak vector boson and gluon form factors. We establish the universal behaviour of the infrared singularities in accordance with the proposal by Catani. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Registro:
| Documento: | Conferencia |
| Título: | Quark and gluon spin-2 form factors to two loops in QCD |
| Autor: | De Florian, D.; Mahakhud, M.; Mathews, P.; Mazzitelli, J.; Ravindran, V. |
| Filiación: | Departamento de Física, FCEyN, Universidad de Buenos Aires, (1428), Pabellón 1, Ciudad Universitaria, Capital Federal, Argentina Regional Centre for Accelerator-based Particle Physics, Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad, 211 019, India Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata, 700 064, India Institute of Mathematical Sciences, C.I.T Campus, 4th Cross St, Tharamani Chennai, Tamil Nadu, 600 113, India |
| Palabras clave: | Differential equations; Elementary particles; High energy physics; Integrodifferential equations; Quantum theory; Extra dimensions; Form factors; Gauge theory; Next to next to leading orders; Regularisation; Scattering process; Standard model; Vector boson; Approximation theory |
| Año: | 2014 |
| Volumen: | 2014-January |
| Título revista: | 12th International Conference on Loops and Legs in Quantum Field Theory, LL 2014 |
| Título revista abreviado: | Proc. Sci. |
| ISSN: | 18248039 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2014-January_n_p_DeFlorian |
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Citas:
---------- APA ----------
De Florian, D., Mahakhud, M., Mathews, P., Mazzitelli, J. & Ravindran, V. (2014) . Quark and gluon spin-2 form factors to two loops in QCD. 12th International Conference on Loops and Legs in Quantum Field Theory, LL 2014, 2014-January.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2014-January_n_p_DeFlorian [ ]
---------- CHICAGO ----------
De Florian, D., Mahakhud, M., Mathews, P., Mazzitelli, J., Ravindran, V. "Quark and gluon spin-2 form factors to two loops in QCD" . 12th International Conference on Loops and Legs in Quantum Field Theory, LL 2014 2014-January (2014).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2014-January_n_p_DeFlorian [ ]
---------- MLA ----------
De Florian, D., Mahakhud, M., Mathews, P., Mazzitelli, J., Ravindran, V. "Quark and gluon spin-2 form factors to two loops in QCD" . 12th International Conference on Loops and Legs in Quantum Field Theory, LL 2014, vol. 2014-January, 2014.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2014-January_n_p_DeFlorian [ ]
---------- VANCOUVER ----------
De Florian, D., Mahakhud, M., Mathews, P., Mazzitelli, J., Ravindran, V. Quark and gluon spin-2 form factors to two loops in QCD. Proc. Sci. 2014;2014-January.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_v2014-January_n_p_DeFlorian [ ]
