The first study of the angular distribution of μ+μ- pairs produced in the forward rapidity region via the Drell-Yan reaction pp→γ∗/Z+X→ℓ+ℓ-+X is presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.1 fb-1. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. The results are compared to various theoretical predictions of the Z-boson production mechanism and can also be used to probe transverse-momentum-dependent parton distributions within the proton.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). First Measurement of the Z →μ+μ- Angular Coefficients in the Forward Region of pp Collisions at s =13 TeV. PHYSICAL REVIEW LETTERS, 129(9) [10.1103/PhysRevLett.129.091801].

First Measurement of the Z →μ+μ- Angular Coefficients in the Forward Region of pp Collisions at s =13 TeV

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Garcia Pardinas J.;Gotti C.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2022

Abstract

The first study of the angular distribution of μ+μ- pairs produced in the forward rapidity region via the Drell-Yan reaction pp→γ∗/Z+X→ℓ+ℓ-+X is presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.1 fb-1. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. The results are compared to various theoretical predictions of the Z-boson production mechanism and can also be used to probe transverse-momentum-dependent parton distributions within the proton.
Articolo in rivista - Articolo scientifico
Z boson
English
24-ago-2022
2022
129
9
091801
none
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). First Measurement of the Z →μ+μ- Angular Coefficients in the Forward Region of pp Collisions at s =13 TeV. PHYSICAL REVIEW LETTERS, 129(9) [10.1103/PhysRevLett.129.091801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/394892
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