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arXiv · 1704.07743

Study of a background reconstruction method for the measurement of D-meson azimuthal angular correlations

Long Ma·Xin Dong·Huan-Zhong Huang·Yu-Gang Ma
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Abstract

We study experimental background reconstruction methods for the measurement of $D-\overline{D}$ correlation using a PYTHIA simulation. Like-sign and side-band background methods that are widely used in the experimental measurements of single $D$-meson production yields were deployed for the correlation background study. It is found that the like-sign method which well describes the combinatorial background of single $D^{0}$ meson yields fails to reproduce the correlated background in the $D^{0}-\overline{D^{0}}$ correlation measurement, while the side-band background method yields a good description of the background for both the single $D^0$ yields and of the correlated background of the $D^{0}-\overline{D^{0}}$ correlation measurement.

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Long Ma, Xin Dong, Huan-Zhong Huang, Yu-Gang Ma. 2021-06-26. Study of a background reconstruction method for the measurement of D-meson azimuthal angular correlations. https://doi.org/10.1007/s41365-021-00896-w

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