Home > LHCb Collection > LHCb Preprints > Measurement of the cross-section for Z$^0\rightarrow$ e$^+$e$^-$ production in pp collisions at $\sqrt{s}$ = 7 TeV |
LHCb Note | |
Report number | LHCb-CONF-2012-011 ; CERN-LHCb-CONF-2012-011 |
Title | Measurement of the cross-section for Z$^0\rightarrow$ e$^+$e$^-$ production in pp collisions at $\sqrt{s}$ = 7 TeV |
Corporate author(s) | The LHCb Collaboration |
Collaboration | LHCb Collaboration |
Note | Linked to LHCb-ANA-2012-015 |
Submitted to | 20th International Workshop on Deep-Inelastic Scattering and Related Subjects, Bonn, Germany, 26 - 30 Mar 2012 |
Submitted by | [email protected] on 05 Mar 2012 |
Subject category | Particle Physics - Experiment |
Accelerator/Facility, Experiment | CERN LHC ; LHCb |
Free keywords | electroweak interaction ; QCD ; forward physics |
Abstract | A measurement of the cross-section for Z$^0\rightarrow$ e$^+$e$^-$ at $\sqrt{s}$ = 7 TeV is presented using LHCb data recorded in 2011 corresponding to an integrated luminosity of 945 pb$^{-1}$. Within the kinematic acceptance, $p_{\mathrm{T}}$ > 20 GeV and 2 < $\eta$ < 4.5 for the leptons and 60 < $M$ < 120 GeV and 2 < $y$ < 4 for the Z$^0$, the cross-section is measured to be \begin{align} \sigma(Z^0 \to e^+ e^-) = 75.7 \pm 0.5 \mathrm{(stat.)} \pm 2.4 \mathrm{(syst.)} \pm 2.6 \mathrm{(lumi.) pb.} \end{align} The results are compared with previous measurements and with theoretical predictions using QCD at NNLO. |
Copyright/License | Preprint: (License: CC-BY-4.0) |
Related document | Superseded by LHCB-PAPER-2012-036 |