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Abstract:

Abstract: We present splitting functions in the triple collinear limit at next-to-leading order. The computation was performed in the context of massless QCD+QED, considering only processes which include at least one photon. Through the comparison of the IR divergent structure of splitting amplitudes with the expected known behavior, we were able to check our results. Besides that we implemented some consistency checks based on symmetry arguments and cross-checked the results among them. Studying photon-started processes, we obtained very compact results. © 2014, The Author(s).

Registro:

Documento: Artículo
Título:Triple collinear splitting functions at NLO for scattering processes with photons
Autor:Sborlini, G.F.R.; de Florian, D.; Rodrigo, G.
Filiación:Departamento de Física and IFIBA, FCEyN, Universidad de Buenos Aires, (1428) Pabellón 1 Ciudad Universitaria, Capital Federal, Argentina
Instituto de Física Corpuscular, Universitat de València, Consejo Superior de Investigaciones Científicas, Parc Científic, Paterna, Valencia E-46980, Spain
Palabras clave:NLO Computations
Año:2014
Volumen:2014
Número:10
DOI: http://dx.doi.org/10.1007/JHEP10(2014)161
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n10_p_Sborlini

Referencias:

  • INSPIRE, J.C. Collins, D.E. Soper and G.F. Sterman, Factorization of hard processes in QCD, in Perturbative quantum chromodynamics, A.H. Mueller ed., Adv. Ser. Direct. High Energy Phys. 5 (1988) 1[hep-ph/0409313] [INSPIRE]; Catani, S., de Florian, D., Rodrigo, G., Space-like (versus time-like) collinear limits in QCD: is factorization violated? (2012) JHEP, 7, p. 026. , [ arXiv:1112.4405 ] [ INSPIRE ]
  • Berends, F.A., Giele, W.T., Recursive calculations for processes with N gluons (1988) Nucl. Phys., B 306, p. 759. , [ INSPIRE ]
  • Mangano, M.L., Parke, S.J., Multiparton amplitudes in gauge theories (1991) Phys. Rept., 200, p. 301. , [ hep-th/0509223 ] [ INSPIRE ]
  • Altarelli, G., Parisi, G., Asymptotic freedom in parton language (1977) Nucl. Phys., B 126, p. 298. , [ INSPIRE ]
  • S. Catani and M.H. Seymour, A general algorithm for calculating jet cross-sections in NLO QCD, Nucl. Phys.B 485 (1997) 291 [Erratum ibid.B 510 (1998) 503] [hep-ph/9605323] [INSPIRE]; Bern, Z., Del Duca, V., Schmidt, C.R., The infrared behavior of one loop gluon amplitudes at next-to-next-to-leading order (1998) Phys. Lett., B 445, p. 168. , [ hep-ph/9810409 ] [ INSPIRE ]
  • Bern, Z., Del Duca, V., Kilgore, W.B., Schmidt, C.R., The infrared behavior of one loop QCD amplitudes at next-to-next-to leading order (1999) Phys. Rev., D 60, p. 116001. , [ hep-ph/9903516 ] [ INSPIRE ]
  • Bern, Z., Chalmers, G., Dixon, L.J., Kosower, D.A., One loop N gluon amplitudes with maximal helicity violation via collinear limits (1994) Phys. Rev. Lett., 72, p. 2134. , [ hep-ph/9312333 ] [ INSPIRE ]
  • Bern, Z., Dixon, L.J., Dunbar, D.C., Kosower, D.A., One loop N point gauge theory amplitudes, unitarity and collinear limits (1994) Nucl. Phys., B 425, p. 217. , [ hep-ph/9403226 ] [ INSPIRE ]
  • Bern, Z., Chalmers, G., Factorization in one loop gauge theory (1995) Nucl. Phys., B 447, p. 465. , [ hep-ph/9503236 ] [ INSPIRE ]
  • Kosower, D.A., Uwer, P., One loop splitting amplitudes in gauge theory (1999) Nucl. Phys., B 563, p. 477. , [ hep-ph/9903515 ] [ INSPIRE ]
  • Bern, Z., Dixon, L.J., Kosower, D.A., Two-loop g → gg splitting amplitudes in QCD (2004) JHEP, 8, p. 012. , [ hep-ph/0404293 ] [ INSPIRE ]
  • Badger, S.D., Glover, E.W.N., Two loop splitting functions in QCD (2004) JHEP, 7, p. 040. , [ hep-ph/0405236 ] [ INSPIRE ]
  • Vogt, A., Moch, S., Vermaseren, J., Photon-parton splitting functions at the next-to-next-to-leading order of QCD (2006) Acta Phys. Polon., B 37, p. 683. , [ hep-ph/0511112 ] [ INSPIRE ]
  • Vogt, A., Moch, S., Vermaseren, J.A.M., The three-loop splitting functions in QCD: the singlet case (2004) Nucl. Phys., B 691, p. 129. , [ hep-ph/0404111 ] [ INSPIRE ]
  • Moch, S., Vermaseren, J.A.M., Vogt, A., The three loop splitting functions in QCD: the nonsinglet case (2004) Nucl. Phys., B 688, p. 101. , [ hep-ph/0403192 ] [ INSPIRE ]
  • Campbell, J.M., Glover, E.W.N., Double unresolved approximations to multiparton scattering amplitudes (1998) Nucl. Phys., B 527, p. 264. , [ hep-ph/9710255 ] [ INSPIRE ]
  • Catani, S., Grazzini, M., Collinear factorization and splitting functions for next-to-next-to-leading order QCD calculations (1999) Phys. Lett., B 446, p. 143. , [ hep-ph/9810389 ] [ INSPIRE ]
  • Del Duca, V., Frizzo, A., Maltoni, F., Factorization of tree QCD amplitudes in the high-energy limit and in the collinear limit (2000) Nucl. Phys., B 568, p. 211. , [ hep-ph/9909464 ] [ INSPIRE ]
  • Birthwright, T.G., Glover, E.W.N., Khoze, V.V., Marquard, P., Multi-gluon collinear limits from MHV diagrams (2005) JHEP, 5, p. 013. , [ hep-ph/0503063 ] [ INSPIRE ]
  • Birthwright, T.G., Glover, E.W.N., Khoze, V.V., Marquard, P., Collinear limits in QCD from MHV rules (2005) JHEP, 7, p. 068. , [ hep-ph/0505219 ] [ INSPIRE ]
  • Catani, S., Grazzini, M., Infrared factorization of tree level QCD amplitudes at the next-to-next-to-leading order and beyond (2000) Nucl. Phys., B 570, p. 287. , [ hep-ph/9908523 ] [ INSPIRE ]
  • Catani, S., de Florian, D., Rodrigo, G., The triple collinear limit of one loop QCD amplitudes (2004) Phys. Lett., B 586, p. 323. , [ hep-ph/0312067 ] [ INSPIRE ]
  • Bollini, C.G., Giambiagi, J.J., Dimensional renormalization: the number of dimensions as a regularizing parameter (1972) Nuovo Cim., 12, p. 20. , [ INSPIRE ]
  • ’t Hooft, G., Veltman, M.J.G., Regularization and renormalization of gauge fields (1972) Nucl. Phys., B 44, p. 189. , [ INSPIRE ]
  • Kunszt, Z., Signer, A., Trócsányi, Z., One loop helicity amplitudes for all 2 →2 processes in QCD and N =1 supersymmetric Yang-Mills theory (1994) Nucl. Phys., B 411, p. 397. , [ hep-ph/9305239 ] [ INSPIRE ]
  • Draggiotis, P., Garzelli, M.V., Papadopoulos, C.G., Pittau, R., Feynman rules for the rational part of the QCD 1-loop amplitudes (2009) JHEP, 4, p. 072. , [ arXiv:0903.0356 ] [ INSPIRE ]
  • M.V. Garzelli, I. Malamos and R. Pittau, Feynman rules for the rational part of the electroweak 1-loop amplitudes, JHEP01 (2010) 040 [Erratum ibid.10 (2010) 097] [arXiv:0910.3130] [INSPIRE]; Sborlini, G.F.R., de Florian, D., Rodrigo, G., Double collinear splitting amplitudes at next-to-leading order (2014) JHEP, 1, p. 018. , [ arXiv:1310.6841 ] [ INSPIRE ]
  • Forshaw, J.R., Seymour, M.H., Siodmok, A., On the breaking of collinear factorization in QCD (2012) JHEP, 11, p. 066. , [ arXiv:1206.6363 ] [ INSPIRE ]
  • L.J. Dixon, Calculating scattering amplitudes efficiently, in QCD and beyond, Boulder U.S.A. (1995), pg. 539 [hep-ph/9601359] [INSPIRE]; Frixione, S., Kunszt, Z., Signer, A., Three jet cross-sections to next-to-leading order (1996) Nucl. Phys., B 467, p. 399. , [ hep-ph/9512328 ] [ INSPIRE ]

Citas:

---------- APA ----------
Sborlini, G.F.R., de Florian, D. & Rodrigo, G. (2014) . Triple collinear splitting functions at NLO for scattering processes with photons. Journal of High Energy Physics, 2014(10).
http://dx.doi.org/10.1007/JHEP10(2014)161
---------- CHICAGO ----------
Sborlini, G.F.R., de Florian, D., Rodrigo, G. "Triple collinear splitting functions at NLO for scattering processes with photons" . Journal of High Energy Physics 2014, no. 10 (2014).
http://dx.doi.org/10.1007/JHEP10(2014)161
---------- MLA ----------
Sborlini, G.F.R., de Florian, D., Rodrigo, G. "Triple collinear splitting functions at NLO for scattering processes with photons" . Journal of High Energy Physics, vol. 2014, no. 10, 2014.
http://dx.doi.org/10.1007/JHEP10(2014)161
---------- VANCOUVER ----------
Sborlini, G.F.R., de Florian, D., Rodrigo, G. Triple collinear splitting functions at NLO for scattering processes with photons. J. High Energy Phys. 2014;2014(10).
http://dx.doi.org/10.1007/JHEP10(2014)161