Measurement of the forward-backward asymmetry in Z/γ∗ → μ + μ − decays and determination of the effective weak mixing angle

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dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Física de Partículasgl
dc.contributor.affiliationUniversidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)gl
dc.contributor.authorLHCb Collaboration
dc.contributor.authorAdeva Andany, Bernardo
dc.contributor.authorDosil Suárez, Álvaro
dc.contributor.authorFernández Albor, Víctor Manuel
dc.contributor.authorGallas Torreira, Abraham Antonio
dc.contributor.authorGarcía Pardiñas, Julián
dc.contributor.authorLemos Cid, Edgar
dc.contributor.authorLucio Martínez, Miriam
dc.contributor.authorMartínez Santos, Diego
dc.contributor.authorPlo Casasus, Máximo
dc.contributor.authorPrisciandaro, James J.
dc.contributor.authorRomero Vidal, Antonio
dc.contributor.authorSaborido Silva, Juan José
dc.contributor.authorSanmartín Sedes, Brais
dc.contributor.authorSantamarina Ríos, Cibrán
dc.contributor.authorVázquez Regueiro, Pablo
dc.contributor.authorVázquez Sierra, Carlos
dc.contributor.authorVieites Díaz, María
dc.date.accessioned2020-04-24T07:59:28Z
dc.date.available2020-04-24T07:59:28Z
dc.date.issued2015
dc.description.abstractThe forward-backward charge asymmetry for the process qq→Z/γ∗→μ+μ− is measured as a function of the invariant mass of the dimuon system. Measurements are performed using proton proton collision data collected with the LHCb detector at √s=7 and 8 TeV, corresponding to integrated luminosities of 1 fb−1 and 2 fb−1 respectively. Within the Standard Model the results constrain the effective electroweak mixing angle to be sin2θeffW=0.23142±0.00073±0.00052±0.00056, where the first uncertainty is statistical, the second systematic and the third theoretical. This result is in agreement with the current world average, and is one of the most precise determinations at hadron colliders to dategl
dc.description.peerreviewedSIgl
dc.identifier.citationAaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the forward-backward asymmetry in Z/γ∗ → μ + μ − decays and determination of the effective weak mixing angle. J. High Energ. Phys. 2015, 190 (2015). https://doi.org/10.1007/JHEP11(2015)190gl
dc.identifier.doi10.1007/JHEP11(2015)190
dc.identifier.essn1029-8479
dc.identifier.urihttp://hdl.handle.net/10347/21696
dc.language.isoenggl
dc.publisherSpringergl
dc.relation.publisherversionhttps://doi.org/10.1007/JHEP11(2015)190gl
dc.rights© CERN, for the bene t 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 madegl
dc.rights.accessRightsopen accessgl
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.subjectElectroweak interactiongl
dc.subjectForward physicsgl
dc.subjectHadron-hadron scatteringgl
dc.titleMeasurement of the forward-backward asymmetry in Z/γ∗ → μ + μ − decays and determination of the effective weak mixing anglegl
dc.typejournal articlegl
dc.type.hasVersionVoRgl
dspace.entity.typePublication
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