English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/16700
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Mellin moments of the O(α(3)(S)) heavy flavor contributions to unpolarized deep-inelastic scattering at Q2 >> m2 and anomalous dimensions

AutorBierenbaum, Isabella ; Blumlein, Johannes; Klein, Sebastian
Fecha de publicación9-jun-2009
EditorElsevier
CitaciónNuclear Physics B 820(1-2): 417–482 (2009)
ResumenWe calculate the O(α(3)(S)) heavy flavor contributions to the Wilson coefficients of the structure function F-2(x,Q(2)) and the massive operator matrix elements (OMEs) for the twist-2 operators of unpolarized deeply inelastic scattering in the region Q2 >> m2. The massive Wilson coefficients are obtained as convolutions of massive OMEs and the known light flavor Wilson coefficients. We also Compute the massive OMEs which are needed to evaluate heavy flavor parton distributions in the variable flavor number scheme (VFNS) to 3-loop order. All contributions to the Wilson coefficients and operator matrix elements but the genuine constant terms at O(α(3)(S)) of the OMEs are derived in terms of quantities, which are known for general values in the Mellin variable N. For the operator matrix elements A(Qg)(3) A(qg,Q)(3) and A(gg,Q)(3) the moments N = 2-10, for A(Qq)((3),PS) to N = 12, and for A(qq,Q)((3),NS), A(qq,Q)((3),PS) A(gq,Q)((3)) to N = 14 are computed. These terms contribute to the light flavor (+)-combinations. For the flavor non-singlet terms, we calculate as well the odd moments N = 1-13, corresponding to the light flavor (-)-combinations. We also obtain the moments of the 3-loop anomalous dimensions, their color projections for the present processes respectively, in an independent calculation, which agree with the results given in the literature.
Descripción66 pages, 9 figures.-- Printed version published Oct 11, 2009.-- ArXiv pre-print available at: http://arxiv.org/abs/0904.3563
Versión del editorhttp://dx.doi.org/10.1016/j.nuclphysb.2009.06.005
URIhttp://hdl.handle.net/10261/16700
DOI10.1016/j.nuclphysb.2009.06.005
ISSN0550-3213
Aparece en las colecciones: (IFIC) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
0904.3563v1.pdf499,61 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.