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Transverse momentum cross section of e +e - pairs in the Z-boson region from pp¯ collisions at vs=1.96TeV

Abstract: The transverse momentum cross section of e+e? pairs in the Z-boson mass region of 66?116??GeV/c2 is precisely measured using Run II data corresponding to 2.1??fb?1 of integrated luminosity recorded by the Collider Detector at Fermilab. The cross section is compared with two quantum chromodynamic calculations. One is a fixed-order perturbative calculation at O(?2s), and the other combines perturbative predictions at high transverse momentum with the gluon resummation formalism at low transverse momentum. Comparisons of the measurement with calculations show reasonable agreement. The measurement is of sufficient precision to allow refinements in the understanding of the transverse momentum distribution.

 Autoría: Aaltonen T., Alvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Bae T., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bedeschi F., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Bisello D., Bizjak I., Bland K.R., Bl

 Fuente: Physical Review D, 2012, 86, 052010

 Editorial: American Physical Society

 Año de publicación: 2012

 Nº de páginas: 16

 Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevD.86.052010

 ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

 Url de la publicación: https://doi.org/10.1103/PhysRevD.86.052010