Measurement of the cross-section for Z → e+e- production in pp collisions at √s = 7 TeV

R. Aaij, C. Abellan Beteta, A. Adametz, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, Y. Amhis, L. Anderlini, J. Anderson, R. AndreassenR. B. Appleby, O. Aquines Gutierrez, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, A. Bates, Th Bauer, A. Bay, J. Beddow, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. Van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, C. Blanks, J. Blouw, S. Blusk, A. Bobrov, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. Van Den Brand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, H. Brown, A. Büchler-Germann, I. Burducea, A. Bursche, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, M. Calvo Gomez, A. Camboni, P. Campana

Producción científicarevisión exhaustiva

72 Citas (Scopus)

Resumen

A measurement of the cross-section for pp → Z → e +e - is presented using data at √s = 7 TeV corresponding to an integrated luminosity of 0.94 fb -1. The process is measured within the kinematic acceptance p T > 20 GeV=c and 2 < η < 4:5 for the daughter electrons and dielectron invariant mass in the range 60-120 GeV=c 2. The cross-section is determined to be σ(pp → Z → e +e -) = 76:0 ± 0:8 ± 2:0 ± 2:6 pb where the first uncertainty is statistical, the second is systematic and the third is the uncertainty in the luminosity. The measurement is performed as a function of Z rapidity and as a function of an angular variable which is closely related to the Z transverse momentum. The results are compared with previous LHCb measurements and with theoretical predictions from QCD. Copyright CERN.

Idioma originalEnglish
Número de artículo106
PublicaciónJournal of High Energy Physics
Volumen2013
N.º2
DOI
EstadoPublished - 1 ene 2013
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física nuclear y de alta energía

Huella

Profundice en los temas de investigación de 'Measurement of the cross-section for Z → e+e- production in pp collisions at √s = 7 TeV'. En conjunto forman una huella única.

Citar esto