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Journal Article

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

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Schmelling,  M.
Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society;

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Citation

The LHCb Collaboration, Aaij, R., Abdelmotteleb, A. S. W., Abellan Beteta, C., Abudinen Gallego, F. J., Ackernley, T., et al. (2022). Study of Z Bosons Produced in Association with Charm in the Forward Region. Physical Review Letters, 128(8): 082001. doi:10.1103/PhysRevLett.128.082001.


Cite as: https://hdl.handle.net/21.11116/0000-000A-E0D5-8
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.