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LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J. |
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Title |
Measurements of charmed meson and antimeson production asymmetries at √s=13.6 TeV |
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2025 |
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Journal of High Energy Physics |
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J. High Energy Phys. |
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10 |
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10 |
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050 - 42pp |
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Abstract |
This article presents doubly differential measurements of the asymmetries in production rates between mesons containing a charm quark and those containing an anticharm quark in proton-proton collisions at a centre-of-mass energy of s√=13.6 TeV using data recorded by the LHCb experiment. The asymmetries of D0, D+ and D+s mesons are measured for two-dimensional intervals in transverse momentum and pseudorapidity, within the range 2.5<pT<25.0 GeV/c and 2.0<η<4.5. No significant production asymmetries are observed. Comparisons to the Pythia 8 and Herwig 7 event generators are also presented, and their agreement with the data is evaluated. These measurements constitute the first measurements of production asymmetries at this centre-of-mass energy of colliding beams, and the first measurements with the LHCb Run 3 detector. |
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no |
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yes |
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yes |
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IFIC @ pastor @ |
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7200 |
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