## Measurement of D s ± production asymmetry in pp collisions at √s=7 and 8 TeV

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Original language English 008 Journal of High Energy Physics 1808 2 Aug 2018 https://doi.org/10.1007/JHEP08(2018)008 E-pub ahead of print - 2 Aug 2018

### Abstract

The inclusive $D_s^{\pm}$ production asymmetry is measured in $pp$ collisions collected by the LHCb experiment at centre-of-mass energies of $\sqrt{s} =7$ and 8 TeV. Promptly produced $D_s^{\pm}$ mesons are used, which decay as $D_s^{\pm}\to\phi\pi^{\pm}$, with $\phi\to K^+K^-$. The measurement is performed in bins of transverse momentum, $p_{\rm T}$, and rapidity, $y$, covering the range \$2.5

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