INVESTIGADORES
SASSOT Rodolfo
artículos
Título:
O(alpha_s**2) QCD Corrections to the electroproduction of hadrons with high transverse momentum.
Autor/es:
ALEJANDRO DALEO,; DANIEL DE FLORIAN,; RODOLFO SASSOT
Revista:
PHYSICAL REVIEW D - PARTICLE AND FILDS
Editorial:
The American Physical Society
Referencias:
Lugar: Ridge, New York; Año: 2005 vol. 71 p. 1 - 11
ISSN:
0556-2821
Resumen:
We compute the order 2s2s
corrections to the one particle inclusive electroproduction cross section of
hadrons with nonvanishing transverse momentum. We perform the full calculation analytically, and obtain
the expression of the factorized (finite) cross section at this order.We compare our results with H1 data on
forward production of 0, and discuss the phenomenological implications of the rather large higher order
contributions obtained in that case. Specifically, we analyze the cross section sensitivity to the factorization
and renormalization scales, and to the input fragmentation functions, over the kinematical region
covered by data. We conclude that the data is well described by the O2s0, and discuss the phenomenological implications of the rather large higher order
contributions obtained in that case. Specifically, we analyze the cross section sensitivity to the factorization
and renormalization scales, and to the input fragmentation functions, over the kinematical region
covered by data. We conclude that the data is well described by the O2sO2s
predictions within the
theoretical uncertainties and without the inclusion of any physics content beyond the Dokshitzer-Grivov-
Lipatov-Altarelli-Parisi (DGLAP) approach.predictions within the
theoretical uncertainties and without the inclusion of any physics content beyond the Dokshitzer-Grivov-
Lipatov-Altarelli-Parisi (DGLAP) approach.