Measurement of prompt charged-particle production in pp collisions at $$ \sqrt{\mathrm{s}} $$ = 13 TeV

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<jats:title>A<jats:sc>bstract</jats:sc> </jats:title><jats:p>The differential cross-section of prompt inclusive production of long-lived charged particles in proton-proton collisions is measured using a data sample recorded by the LHCb experiment at a centre-of-mass energy of <jats:inline-formula><jats:alternatives><jats:tex-math>$$ \sqrt{s} $$</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math></jats:alternatives></jats:inline-formula> = 13 TeV. The data sample, collected with an unbiased trigger, corresponds to an integrated luminosity of 5<jats:italic>.</jats:italic>4 nb<jats:sup><jats:italic>−</jats:italic>1</jats:sup>. The differential cross-section is measured as a function of transverse momentum and pseudorapidity in the ranges <jats:italic>p</jats:italic><jats:sub>T</jats:sub> ∈ [80<jats:italic>,</jats:italic> 10 000) MeV<jats:italic>/c</jats:italic> and <jats:italic>η</jats:italic> ∈ [2<jats:italic>.</jats:italic>0<jats:italic>,</jats:italic> 4<jats:italic>.</jats:italic>8) and is determined separately for positively and negatively charged particles. The results are compared with predictions from various hadronic-interaction models.</jats:p>

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