The CMS tracker consists of 206 m2 of silicon strip sensors assembled on carbon fibre composite structures and is designed for operation in the temperature range from -25 to +25°C. The mechanical stability of tracker components during physics operation was monitored with a few μm resolution using a dedicated laser alignment system as well as

Cross sections for the production of a Z boson in association with jets in proton-proton collisions at a centre-of-mass energy of √{s}=8 TeV are measured using a data sample collected by the CMS experiment at the LHC corresponding to 19.6 fb-1. Differential cross sections are presented as functions of up to three observables that describe the jet

The WZ production cross section is measured by the CMS experiment at the CERN LHC in proton-proton collision data samples corresponding to integrated luminosities of 4.9 {fb}^{-1} collected at √{s} = 7 {TeV} , and 19.6 {fb}^{-1} at √{s} = 8 {TeV} . The measurements are performed using the fully-leptonic WZ decay modes with electrons and muons in

This paper reports the measurement of J/{ψ } meson production in proton-proton (pp) and proton-lead (pPb) collisions at a center-of-mass energy per nucleon pair of 5.02 {TeV} by the CMS experiment at the LHC. The data samples used in the analysis correspond to integrated luminosities of 28 {pb}^{-1} and 35 {nb}^{-1} for pp and pPb collisions

Dwarf irregular galaxies (dIrrs) are the smallest stellar systems with extended H i discs. The study of the kinematics of such discs is a powerful tool to estimate the total matter distribution at these very small scales. In this work, we study the H i kinematics of 17 galaxies extracted from the 'Local Irregulars That Trace Luminosity Extremes

We report observations of dense molecular gas in the star-forming galaxy EGS 13004291 (z = 1.197) using the Plateau de Bure Interferometer. We tentatively detect HCN and HNC J=2\to 1 emission when stacked together at 4σ significance, yielding line luminosities of {L}{HCN(J=2\to 1)}\prime =(9+/- 3)× {10}9 K km s‑1 pc2 and {L}{HNC(J=2\to 1)}\prime =