| dc.contributor.author | LHCb Collaboration |
| dc.contributor.author | Adeva Andany, Bernardo |
| dc.contributor.author | Dosil Suárez, Álvaro |
| dc.contributor.author | Fernández Albor, Víctor Manuel |
| dc.contributor.author | Gallas Torreira, Abraham Antonio |
| dc.contributor.author | García Pardiñas, Julián |
| dc.contributor.author | Hernando Morata, José Ángel |
| dc.contributor.author | Plo Casasus, Máximo |
| dc.contributor.author | Romero Vidal, Antonio |
| dc.contributor.author | Saborido Silva, Juan José |
| dc.contributor.author | Sanmartín Sedes, Brais |
| dc.contributor.author | Santamarina Ríos, Cibrán |
| dc.contributor.author | Vázquez Regueiro, Pablo |
| dc.contributor.author | Vázquez Sierra, Carlos |
| dc.contributor.author | Vieites Díaz, María |
| dc.date.accessioned | 2020-05-06T13:33:08Z |
| dc.date.available | 2020-05-06T13:33:08Z |
| dc.date.issued | 2015 |
| dc.identifier.citation | Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the forward Z boson production cross-section in pp collisions at √s=7 TeV. J. High Energ. Phys. 2015, 39 (2015). https://doi.org/10.1007/JHEP08(2015)039 |
| dc.identifier.issn | 1029-8479 |
| dc.identifier.uri | http://hdl.handle.net/10347/22076 |
| dc.description.abstract | A measurement of the production cross-section for Z bosons that decay to muons is presented. The data were recorded by the LHCb detector during pp collisions at a centre-of-mass energy of 7 TeV, and correspond to an integrated luminosity of 1.0 fb−1. The cross-section is measured for muons in the pseudorapidity range 2.0 < η < 4.5 with transverse momenta pT > 20 GeV/c. The dimuon mass is restricted to 60 < M μ + μ − < 120 GeV/c2. The measured cross-section is
σZ→μ+μ−=(76.0±0.3±0.5±1.0±1.3)pb
where the uncertainties are due to the sample size, systematic effects, the beam energy and the luminosity. This result is in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics. The cross-section is also measured differentially as a function of kinematic variables of the Z boson. Ratios of the production cross-sections of electroweak bosons are presented using updated LHCb measurements of W boson production. A precise test of the Standard Model is provided by the measurement of the ratio
σW+→μ+νμ+σW−→μ−ν¯μσZ→μ+μ−=20.63±0.09±0.12±0.05,
where the uncertainty due to luminosity cancels. |
| dc.language.iso | eng |
| dc.publisher | Springer |
| dc.rights | © CERN, for the benefit of the LHCb Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0 |
| dc.subject | Electroweak interaction |
| dc.subject | Hadron-Hadron Scattering |
| dc.subject | Proton-proton scattering |
| dc.subject | QCD |
| dc.subject | Forward physics |
| dc.title | Measurement of the forward Z boson production cross-section in pp collisions at √s =7 TeV |
| dc.type | journal article |
| dc.identifier.doi | 10.1007/JHEP08(2015)039 |
| dc.relation.publisherversion | https://doi.org/10.1007/JHEP08(2015)039 |
| dc.type.hasVersion | VoR |
| dc.rights.accessRights | open access |
| dc.contributor.affiliation | Universidade de Santiago de Compostela. Departamento de Física de Partículas |
| dc.contributor.affiliation | Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
| dc.description.peerreviewed | SI |
