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First measurement of the angular coefficients of Drell-Yan e +e- pairs in the Z mass region from pp? collisions at ?s=1.96TeV

Abstract: We report on the first measurement of the angular distributions of final state electrons in p¯p???/Z?e+e?+X events produced in the Z boson mass region at ?s=1.96TeV. The data sample collected by the CDF II detector for this result corresponds to 2.1??fb?1 of integrated luminosity. The angular distributions are studied as a function of the transverse momentum of the electron-positron pair and show good agreement with the Lam-Tung relation, consistent with a spin-1 description of the gluon, and demonstrate that, at high values of the transverse momentum, Z bosons are produced via quark-antiquark annihilation and quark-gluon Compton processes.

Other publications of the same journal or congress with authors from the University of Cantabria

 Authorship: Aaltonen T., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bauer G., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley M.,

 Fuente: Physical Review Letters, 2011, 106(24), 241801

 Publisher: American Physical Society

 Publication date: 01/06/2011

 No. of pages: 8

 Publication type: Article

 DOI: 10.1103/PhysRevLett.106.241801

 ISSN: 0031-9007,1079-7114

 Publication Url: https://doi.org/10.1103/PhysRevLett.106.241801

Authorship

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON