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., Abellán Beteta, C., Abudinén, 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), 1-11 [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

Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
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.
2022
Aaij, R., Abdelmotteleb, A., Abellán Beteta, C., Abudinén, 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), 1-11 [10.1103/PhysRevLett.129.091801].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellán Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C.A...espandi
File in questo prodotto:
File Dimensione Formato  
2022-AR-34-First_Meas_of_the_Z_to_mup_mum_Ang_Coeff_in_the_Fw-PRL.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 338.01 kB
Formato Adobe PDF
338.01 kB Adobe PDF Visualizza/Apri

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/11585/900682
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 8
social impact