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 < y(Z) < 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., Abellán Beteta, C., Abudinen 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), 1-12 [10.1103/PhysRevLett.128.082001].

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

Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Maccolini, S.;Manuzzi, D.;Patrignani, C.;Villa, A.;Zucchelli, S.;
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 < y(Z) < 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.
2022
Aaij, R., Abdelmotteleb, A., Abellán Beteta, C., Abudinen 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), 1-12 [10.1103/PhysRevLett.128.082001].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellán Beteta, C.; Abudinen Gallego, F.J.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/899032
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