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Abstract:

We consider the region of small transverse momenta in the production of high-mass systems in hadronic collisions. By using the current knowledge on the infrared behaviour of tree-level and one-loop QCD amplitudes at O(αS 2), we analytically compute the general form of the logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. By comparing the results with qT-resummation formulae we extract the coefficients that control the resummation of the large logarithmic contributions for both quark and gluon channels. Our results show that within the conventional resummation formalism the Sudakov form factor is actually process-dependent.

Registro:

Documento: Artículo
Título:The structure of large logarithmic corrections at small transverse momentum in hadronic collisions
Autor:De Florian, D.; Grazzini, M.
Filiación:Departamento de Física, FCEYN, Univ. Buenos Aires, (1428) P., Capital Federal, Argentina
Dipartimento di Fisica, Univ. Firenze, I-50019 Sesto F., Florence, Italy
INFN, Sezione Firenze, I-50019 Sesto F., Florence, Italy
Institute for Theoretical Physics, ETH-Hönggerberg, CH 8093, Zürich, Switzerland
Palabras clave:12.38.Bx; 12.38.Cy
Año:2001
Volumen:616
Número:1-2
Página de inicio:247
Página de fin:285
DOI: http://dx.doi.org/10.1016/S0550-3213(01)00460-6
Título revista:Nuclear Physics B
Título revista abreviado:Nucl. Phys. B
ISSN:05503213
CODEN:NUPBB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05503213_v616_n1-2_p247_DeFlorian

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Citas:

---------- APA ----------
De Florian, D. & Grazzini, M. (2001) . The structure of large logarithmic corrections at small transverse momentum in hadronic collisions. Nuclear Physics B, 616(1-2), 247-285.
http://dx.doi.org/10.1016/S0550-3213(01)00460-6
---------- CHICAGO ----------
De Florian, D., Grazzini, M. "The structure of large logarithmic corrections at small transverse momentum in hadronic collisions" . Nuclear Physics B 616, no. 1-2 (2001) : 247-285.
http://dx.doi.org/10.1016/S0550-3213(01)00460-6
---------- MLA ----------
De Florian, D., Grazzini, M. "The structure of large logarithmic corrections at small transverse momentum in hadronic collisions" . Nuclear Physics B, vol. 616, no. 1-2, 2001, pp. 247-285.
http://dx.doi.org/10.1016/S0550-3213(01)00460-6
---------- VANCOUVER ----------
De Florian, D., Grazzini, M. The structure of large logarithmic corrections at small transverse momentum in hadronic collisions. Nucl. Phys. B. 2001;616(1-2):247-285.
http://dx.doi.org/10.1016/S0550-3213(01)00460-6