Events containing a Z boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6  fb^{-1} collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a Z boson and a jet, the fraction of charm jets is determined in intervals of Z-boson rapidity in the range 2.0<4.5. A sizable enhancement is observed in the forwardmost y(Z) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.

Aaij, R., Abdelmotteleb, A., Beteta, C., Gallego, F., Ackernley, T., Adeva, B., et al. (2022). Study of Z Bosons Produced in Association with Charm in the Forward Region. PHYSICAL REVIEW LETTERS, 128(8) [10.1103/PhysRevLett.128.082001].

Study of Z Bosons Produced in Association with Charm in the Forward Region

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

Abstract

Events containing a Z boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6  fb^{-1} collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a Z boson and a jet, the fraction of charm jets is determined in intervals of Z-boson rapidity in the range 2.0<4.5. A sizable enhancement is observed in the forwardmost y(Z) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.
Articolo in rivista - Articolo scientifico
W &amp; Z bosons
English
Aaij, R., Abdelmotteleb, A., Beteta, C., Gallego, F., Ackernley, T., Adeva, B., et al. (2022). Study of Z Bosons Produced in Association with Charm in the Forward Region. PHYSICAL REVIEW LETTERS, 128(8) [10.1103/PhysRevLett.128.082001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/362293
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