The measurement of Z boson production is presented as a method to determine the integrated luminosity of CMS data sets. The analysis uses proton-proton collision data, recorded by the CMS experiment at the CERN LHC in 2017 at a center-of-mass energy of 13TeV. Events with Z bosons decaying into a pair of muons are selected. The total number of Z bosons produced in a fiducial volume is determined, together with the identification efficiencies and correlations from the same data set, in small intervals of 20pb-1 of integrated luminosity, thus facilitating the efficiency and rate measurement as a function of time and instantaneous luminosity. Using the ratio of the efficiency-corrected numbers of Z bosons, the precisely measured integrated luminosity of one data set is used to determine the luminosity of another. For the first time, a full quantitative uncertainty analysis of the use of Z bosons for the integrated luminosity measurement is performed. The uncertainty in the extrapolation between two data sets, recorded in 2017 at low and high instantaneous luminosity, is less than 0.5%. We show that the Z boson rate measurement constitutes a precise method, complementary to traditional methods, with the potential to improve the measurement of the integrated luminosity.

Zobrazit více v PubMed

CMS Collaboration, Measurement of the inclusive W and Z production cross sections in pp collisions at [Image: see text] TeV with the CMS experiment. JHEP

CMS Collaboration, Measurement of the differential Drell-Yan cross section in proton-proton collisions at [Image: see text] TeV. JHEP

CMS Collaboration, Measurements of differential Z boson production cross sections in proton-proton collisions at [Image: see text] TeV. JHEP

CMS Collaboration, Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at [Image: see text] TeV. Eur. Phys. J. C PubMed PMC

ATLAS Collaboration, Measurement of W [Image: see text] and Z boson production cross sections in pp collisions at [Image: see text] TeV with the ATLAS detector. Phys. Lett. B

LHCb Collaboration, Measurement of the Z boson production cross-section in proton-lead collisions at [Image: see text] TeV. JHEP

Y. Li, F. Petriello, Combining QCD and electroweak corrections to dilepton production in the framework of the FEWZ simulation code. Phys. Rev. D

P.F. Monni et al., MiNNLO [Image: see text]: a new method to match NNLO QCD to parton showers. JHEP PubMed PMC

C. Duhr, B. Mistlberger, Lepton-pair production at hadron colliders at [Image: see text] LO in QCD. JHEP

S. Alekhin, J. Blümlein, S. Moch, R. Plačakytė, Parton distribution functions, [Image: see text] , and heavy-quark masses for LHC Run II. Phys. Rev. D

NNPDF Collaboration, Parton distributions from high-precision collider data. Eur. Phys. J. C PubMed PMC

S. Dulat et al., New parton distribution functions from a global analysis of quantum chromodynamics. Phys. Rev. D

L.A. Harland-Lang, A.D. Martin, P. Motylinski, R.S. Thorne, Parton distributions in the LHC era: MMHT 2014 PDFs. Eur. Phys. J. C PubMed DOI PMC

CMS Collaboration, Search for invisible decays of a Higgs boson produced through vector boson fusion in proton–proton collisions at [Image: see text] TeV. Phys. Lett. B

Particle Data Group, R.L. Workman et al., Review of particle physics. Prog. Theor. Exp. Phys.

CMS Collaboration, Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC. JINST

CMS Collaboration, Performance of the CMS muon detector and muon reconstruction with proton-proton collisions at [Image: see text] TeV. JINST

ATLAS Collaboration, Muon reconstruction performance of the ATLAS detector in proton-proton collision data at [Image: see text] TeV. Eur. Phys. J. C PubMed PMC

M. Dittmar, F. Pauss, D. Zürcher, Towards a precise parton luminosity determination at the CERN LHC. Phys. Rev. D DOI

C. Schwick, B. Petersen, LPC’s view on Run 2, in

ATLAS Collaboration, Luminosity determination in pp collisions at [Image: see text] TeV using the ATLAS detector at the LHC. Eur. Phys. J. C

R. Bonciani et al., Mixed strong-electroweak corrections to the Drell–Yan process. Phys. Rev. Lett. PubMed DOI

M. Delto, M. Jaquier, K. Melnikov, R. Röntsch, Mixed QCD [Image: see text] QED corrections to on-shell Z boson production at the LHC. JHEP DOI

S. van der Meer, Calibration of the effective beam height in the ISR, ISR Report CERN-ISR-PO-68-31 (1968)

P. Grafström, W. Kozanecki, Luminosity determination at proton colliders. Prog. Part. Nucl. Phys. DOI

LHCb Collaboration, Precision luminosity measurements at LHCb. JINST

ALICE Collaboration, Measurement of visible cross sections in proton-lead collisions at [Image: see text] TeV in van der Meer scans with the ALICE detector. JINST

ATLAS Collaboration, Luminosity determination in pp collisions at [Image: see text] TeV using the ATLAS detector at the LHC. Eur. Phys. J. C PubMed PMC

CMS Collaboration, Precision luminosity measurement in proton-proton collisions at [Image: see text] TeV in 2015 and 2016 at CMS. Eur. Phys. J. C PubMed PMC

CMS Collaboration, Pileup mitigation at CMS in 13 TeV data. JINST

A. Dainese et al., Physics at the HL-LHC, and perspectives at the HE-LHC, CERN Report CERN-2019-007, (2019). 10.23731/CYRM-2019-007

J. Salfeld-Nebgen, D. Marlow, Data-driven precision luminosity measurements with Z bosons at the LHC and HL-LHC. JINST

CMS Collaboration, CMS luminosity measurement for the 2017 data-taking period at [Image: see text] TeV, CMS Physics Analysis Summary CMS-PAS-LUM-17-004 (2018)

CMS Collaboration, The CMS experiment at the CERN LHC. JINST

CMS Collaboration, Description and performance of track and primary-vertex reconstruction with the CMS tracker. JINST

CMS Tracker Group Collaboration, The CMS Phase-1 pixel detector upgrade. JINST

CMS Collaboration, Particle-flow reconstruction and global event description with the CMS detector. JINST

M. Cacciari, G.P. Salam, G. Soyez, The anti- [Image: see text] jet clustering algorithm. JHEP DOI

M. Cacciari, G.P. Salam, G. Soyez, FastJet user manual. Eur. Phys. J. C DOI

CMS Collaboration, Performance of missing transverse momentum reconstruction in proton-proton collisions at [Image: see text] TeV using the CMS detector. JINST

CMS Collaboration, Technical proposal for the Phase-II upgrade of the Compact Muon Solenoid, CMS Technical Proposal CERN-LHCC-2015-010, CMS-TDR-15-02 (2015)

CMS Collaboration, Performance of the CMS Level-1 trigger in proton-proton collisions at [Image: see text] TeV. JINST

CMS Collaboration, The CMS trigger system. JINST

CMS BRIL Collaboration, The pixel luminosity telescope: a detector for luminosity measurement at CMS using silicon pixel sensors. Eur. Phys. J. C

M. Guthoff on behalf of the CMS Collaboration, The new fast beam condition monitor using poly-crystalline diamond sensors for luminosity measurement at CMS, in

J. Alwall et al., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations. JHEP DOI

T. Sjöstrand et al., An introduction to PYTHIA 8.2. Comput. Phys. Commun.

CMS Collaboration, Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements. Eur. Phys. J. C PubMed PMC

GEANT4 Collaboration, GEANT4-a simulation toolkit. Nucl. Instrum. Methods A

CMS Collaboration, Performance of the CMS muon trigger system in proton-proton collisions at [Image: see text] TeV. JINST

R. Frühwirth, Application of Kalman filtering to track and vertex fitting. Nucl. Instrum. Methods A

M.J. Oreglia, A study of the reactions [Image: see text]. Ph.D. thesis, Stanford University. SLAC-R-236 (1980)

S. Das, A simple alternative to the Crystal Ball function (2016). arXiv:1603.08591