Conferencia
Catani, S.; De Florian, D.; Rodrigo, G. "Factorization violation in the multiparton collinear limit" (2012) 11th DESY Workshop on Elementary Particle Physics - Loops and Legs in Quantum Field Theory, LL 2012. Part F127172
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Abstract:
We present an all-order generalized factorization formula for QCD scattering amplitudes in kinematical configurationswhere two or more momenta of the external partons become collinear. The singular behaviour of the scattering amplitudes in the collinear limit is encoded by collinear splitting matrices. In the space-like region and beyond the tree level, the collinear splitting matrices depend also on the momenta and quantum numbers of the non-collinear partons, thus breaking strict collinear factorization. Although the factorization breaking contribution partly cancels for squared amplitudes, due to its one-loop absorptive origin, remaining effects at high perturbative orders have implications on the non-Abelian structure of logarithmically-enhanced terms in perturbative calculations and on various factorization issues of mass singularities. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
Registro:
| Documento: | Conferencia |
| Título: | Factorization violation in the multiparton collinear limit |
| Autor: | Catani, S.; De Florian, D.; Rodrigo, G. |
| Filiación: | INFN, Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di Firenze, Sesto Fiorentino, Florence, I-50019, Italy Departamento de Física and IFIBA, FCEYN, Universidad de Buenos Aires, (1428) Pabellón 1 Ciudad Universitaria, Capital Federal, Argentina Instituto de Física Corpuscular, UVEG-Consejo Superior de Investigaciones Científicas, Parc Científic, Paterna (Valencia), E-46980, Spain |
| Palabras clave: | Elementary particles; Factorization; Quantum theory; Factorization formulas; Perturbative calculations; Quantum numbers; Remaining effects; Scattering amplitudes; Tree level; Matrix algebra |
| Año: | 2012 |
| Volumen: | Part F127172 |
| Título revista: | 11th DESY Workshop on Elementary Particle Physics - Loops and Legs in Quantum Field Theory, LL 2012 |
| Título revista abreviado: | Proc. Sci. |
| ISSN: | 18248039 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_vPartF127172_n_p_Catani |
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Citas:
---------- APA ----------
Catani, S., De Florian, D. & Rodrigo, G. (2012) . Factorization violation in the multiparton collinear limit. 11th DESY Workshop on Elementary Particle Physics - Loops and Legs in Quantum Field Theory, LL 2012, Part F127172.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_vPartF127172_n_p_Catani [ ]
---------- CHICAGO ----------
Catani, S., De Florian, D., Rodrigo, G. "Factorization violation in the multiparton collinear limit" . 11th DESY Workshop on Elementary Particle Physics - Loops and Legs in Quantum Field Theory, LL 2012 Part F127172 (2012).Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_vPartF127172_n_p_Catani [ ]
---------- MLA ----------
Catani, S., De Florian, D., Rodrigo, G. "Factorization violation in the multiparton collinear limit" . 11th DESY Workshop on Elementary Particle Physics - Loops and Legs in Quantum Field Theory, LL 2012, vol. Part F127172, 2012.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_vPartF127172_n_p_Catani [ ]
---------- VANCOUVER ----------
Catani, S., De Florian, D., Rodrigo, G. Factorization violation in the multiparton collinear limit. Proc. Sci. 2012;Part F127172.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_18248039_vPartF127172_n_p_Catani [ ]
