This paper describes precision measurements of the transverse momentum pTℓℓ (ℓ= e, μ) and of the angular variable ϕη∗ distributions of Drell–Yan lepton pairs in a mass range of 66–116 GeV. The analysis uses data from 36.1 fb- 1 of proton–proton collisions at a centre-of-mass energy of s=13TeV collected by the ATLAS experiment at the LHC in 2015 and 2016. Measurements in electron-pair and muon-pair final states are performed in the same fiducial volumes, corrected for detector effects, and combined. Compared to previous measurements in proton–proton collisions at s=7 and 8TeV, these new measurements probe perturbative QCD at a higher centre-of-mass energy with a different composition of initial states. They reach a precision of 0.2% for the normalized spectra at low values of pTℓℓ. The data are compared with different QCD predictions, where it is found that predictions based on resummation approaches can describe the full spectrum within uncertainties.

Measurement of the transverse momentum distribution of Drell–Yan lepton pairs in proton–proton collisions at √s=13 TeV with the ATLAS detector / Aad, ., and Abbott, G., and Abbott, B., and Abud, D.C., and Abeling, A.A., and Abhayasinghe, K., and Abidi, D.K., and AbouZeid, S.H., and Abraham, O.S., and Abramowicz, N.L., and Abreu, H., and Abulaiti, H., and Acharya, Y., and Achkar, B.S., and Adachi, B., and Adam, S., and Bourdarios, L., and Adamczyk, C.A., and Adamek, L., and Adelman, L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 80:7(2020). [10.1140/epjc/s10052-020-8001-z]

Measurement of the transverse momentum distribution of Drell–Yan lepton pairs in proton–proton collisions at √s=13 TeV with the ATLAS detector

F. M. Follega;Iuppa R;Ricci E.;
2020-01-01

Abstract

This paper describes precision measurements of the transverse momentum pTℓℓ (ℓ= e, μ) and of the angular variable ϕη∗ distributions of Drell–Yan lepton pairs in a mass range of 66–116 GeV. The analysis uses data from 36.1 fb- 1 of proton–proton collisions at a centre-of-mass energy of s=13TeV collected by the ATLAS experiment at the LHC in 2015 and 2016. Measurements in electron-pair and muon-pair final states are performed in the same fiducial volumes, corrected for detector effects, and combined. Compared to previous measurements in proton–proton collisions at s=7 and 8TeV, these new measurements probe perturbative QCD at a higher centre-of-mass energy with a different composition of initial states. They reach a precision of 0.2% for the normalized spectra at low values of pTℓℓ. The data are compared with different QCD predictions, where it is found that predictions based on resummation approaches can describe the full spectrum within uncertainties.
2020
7
Aad, ; and Abbott, G.; and Abbott, B.; and Abud, D. C.; and Abeling, A. A.; and Abhayasinghe, K.; and Abidi, D. K.; and AbouZeid, S. H.; and Abraham, ...espandi
Measurement of the transverse momentum distribution of Drell–Yan lepton pairs in proton–proton collisions at √s=13 TeV with the ATLAS detector / Aad, ., and Abbott, G., and Abbott, B., and Abud, D.C., and Abeling, A.A., and Abhayasinghe, K., and Abidi, D.K., and AbouZeid, S.H., and Abraham, O.S., and Abramowicz, N.L., and Abreu, H., and Abulaiti, H., and Acharya, Y., and Achkar, B.S., and Adachi, B., and Adam, S., and Bourdarios, L., and Adamczyk, C.A., and Adamek, L., and Adelman, L., et al.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 80:7(2020). [10.1140/epjc/s10052-020-8001-z]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/318230
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 86
  • ???jsp.display-item.citation.isi??? 82
  • OpenAlex 75
social impact