From cern.ch

Luminosity measurement for lead-lead collisions at $ \sqrt{\smash[b]{s_{_{\mathrm{NN}}}}}= $ 5.02 TeV in 2015 and 2018 at CMS

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Measurements of the luminosity delivered to the CMS experiment during the lead-lead data-taking periods in 2015 and 2018 are presented for the first time. The collisions were recorded at a nucleon-nucleon center-of-mass energy of 5.02 TeV; the 2018 data sample is three times larger than the 2015...

#cmspaper #luminosity

10h ago

From cern.ch

Evidence for similar collectivity of high transverse momentum particles in pPb and PbPb collisions

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Charged hadron elliptic anisotropies ($ v_2 $) are presented over a wide transverse momentum ($ p_{\mathrm{T}} $) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The data were recorded by the CMS...

#cmspaper #heavyions

on Feb 12