TY - JOUR
T1 - Measurement of forward W and Z boson production in pp collisions at √s =8 TeV.
AU - Aaij, R.
AU - Abellán Beteta, C.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Affolder, A.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Ali, S.
AU - Alkhazov, G.
AU - Alvarez Cartelle, P.
AU - Alves, A. A.
AU - Amato, S.
AU - Amerio, S.
AU - Amhis, Y.
AU - Everse, LA
AU - Anderlini, L.
AU - Andreassi, G.
AU - Andreotti, M.
AU - Andrews, J.E.
AU - Appleby, R. B.
AU - Aquines Gutierrez, O.
AU - Archilli, F.
AU - d’Argent, P.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Carvalho Akiba, K.
AU - Coco, V.
AU - David, P. N.Y.
AU - De Bruyn, K.
AU - Ferro-Luzzi, M.
AU - Heijne, V.
AU - Ketel, T.
AU - Koopman, R. F.
AU - van Leerdam, J.
AU - Merk, M.
AU - Onderwater, C. J.G.
AU - Raven, G.
AU - Schiller, M.
AU - Serra, N.
AU - Snoek, H.
AU - Storaci, B.
AU - Syropoulos, V.
AU - van Tilburg, J.
AU - Tolk, S.
AU - Tsopelas, P.
AU - Tuning, N.
AU - The LHCb Collaboration
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Measurements are presented of electroweak boson production using data from pp collisions at a centre-of-mass energy of √s =8 TeV. The analysis is based on an integrated luminosity of 2.0 fb−1 recorded with the LHCb detector. The bosons are identified in the W → μν and Z → μ+μ− decay channels. The cross-sections are measured for muons in the pseudorapidity range 2.0 < η < 4.5, with transverse momenta pT> 20 GeV/c and, in the case of the Z boson, a dimuon mass within 60<Mμ+μ−<120
GeV/c2. The results are σW + →µ+ ν = 1093.6 ± 2.1 ± 7.2 ± 10.9 ± 12.7 pb ,σW − →µ− ν = 818.4 ± 1.9 ± 5.0 ± 7.0 ± 9.5 pb , σZ →µ+ µ− = 95.0 ± 0.3 ± 0.7 ± 1.1 ± 1.1 pb ,where the first uncertainties are statistical, the second are systematic, the third are due to the knowledge of the LHC beam energy and the fourth are due to the luminosity determination. The evolution of the W and Z boson cross-sections with centre-of-mass energy is studied using previously reported measurements with 1.0 fb−1 of data at 7 TeV. Differential distributions are also presented. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.
AB - Measurements are presented of electroweak boson production using data from pp collisions at a centre-of-mass energy of √s =8 TeV. The analysis is based on an integrated luminosity of 2.0 fb−1 recorded with the LHCb detector. The bosons are identified in the W → μν and Z → μ+μ− decay channels. The cross-sections are measured for muons in the pseudorapidity range 2.0 < η < 4.5, with transverse momenta pT> 20 GeV/c and, in the case of the Z boson, a dimuon mass within 60<Mμ+μ−<120
GeV/c2. The results are σW + →µ+ ν = 1093.6 ± 2.1 ± 7.2 ± 10.9 ± 12.7 pb ,σW − →µ− ν = 818.4 ± 1.9 ± 5.0 ± 7.0 ± 9.5 pb , σZ →µ+ µ− = 95.0 ± 0.3 ± 0.7 ± 1.1 ± 1.1 pb ,where the first uncertainties are statistical, the second are systematic, the third are due to the knowledge of the LHC beam energy and the fourth are due to the luminosity determination. The evolution of the W and Z boson cross-sections with centre-of-mass energy is studied using previously reported measurements with 1.0 fb−1 of data at 7 TeV. Differential distributions are also presented. Results are in good agreement with theoretical predictions at next-to-next-to-leading order in perturbative quantum chromodynamics.
KW - Electroweak interaction
KW - Forward physics
KW - Hadron-Hadron scattering
UR - http://www.scopus.com/inward/record.url?scp=85000843898&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85000843898&partnerID=8YFLogxK
U2 - 10.1007/JHEP01(2016)155
DO - 10.1007/JHEP01(2016)155
M3 - Article
AN - SCOPUS:85000843898
VL - 2016
SP - 1
EP - 45
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1126-6708
IS - 1
M1 - 155
ER -