TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2022
DA  - 2022//
TI  - Study of Z Bosons Produced in Association with Charm in the Forward Region
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 082001
EP  - 12pp
VL  - 128
IS  - 8
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - https://arxiv.org/abs/2109.08084
UR  - https://doi.org/10.1103/PhysRevLett.128.082001
DO  - 10.1103/PhysRevLett.128.082001
LA  - English
N1  - WOS:000767187300001
ID  - LHCbCollaborationAaij_etal2022
ER  -