The first study of the angular distribution of mu(+) mu(-) pairs produced in the forward rapidity region via the Drell-Yan reaction pp -> gamma*/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., Beteta, C.a., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). First measurement of the Z -> mu(+) mu(-) angular coefficients in the forward region of pp collisions at root s=13 TeV. PHYSICAL REVIEW LETTERS, 129(9) [10.1103/PhysRevLett.129.091801].

First measurement of the Z -> mu(+) mu(-) angular coefficients in the forward region of pp collisions at root s=13 TeV

Archilli, F.;Santovetti, E.;
2022-01-01

Abstract

The first study of the angular distribution of mu(+) mu(-) pairs produced in the forward rapidity region via the Drell-Yan reaction pp -> gamma*/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
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Aaij, R., Abdelmotteleb, A., Beteta, C.a., Abudinen, F., Ackernley, T., Adeva, B., et al. (2022). First measurement of the Z -> mu(+) mu(-) angular coefficients in the forward region of pp collisions at root s=13 TeV. PHYSICAL REVIEW LETTERS, 129(9) [10.1103/PhysRevLett.129.091801].
Aaij, R; Abdelmotteleb, Asw; Beteta, Ca; Abudinen, F; Ackernley, T; Adeva, B; Adinolfi, M; Afsharnia, H; Agapopoulou, C; Aidala, Ca; Aiola, S; Ajaltou...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/312759
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