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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at s√= 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range |η|<2, was ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
At sufficiently high temperature and energy density, nuclear matter undergoes a transition to a phase in which quarks and gluons are not confined: the quark–gluon plasma (QGP)1. Such an exotic state of strongly interacting ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at s√=7 TeVs=7 TeV and p–Pb collisions at sNN−−−√=5.02 TeVsNN=5.02 TeV at the Large Hadron Collider. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the first measurement of the two-particle transverse momentum differential correlation function, P2≡ ⟨ Δ p T Δ p T ⟩ / ⟨ p T ⟩ 2 , in Pb-Pb collisions at √ s N N = 2.76 TeV . Results for P2 are reported as ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The production of K∗ ( 892 ) 0 and ϕ ( 1020 ) mesons in proton-proton ( p p ) and lead-lead (Pb-Pb) collisions at √ s NN = 2.76 TeV has been analyzed using a high luminosity data sample accumulated in 2011 with the ALICE ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the charged-particle pseudorapidity density in Pb–Pb collisions at sNN=5.02TeV in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from −3.5 to 5, which is sufficient for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The transverse momentum distributions of the strange and double-strange hyperon resonances ((1385)±, (1530)0) produced in p–Pb collisions at √sNN = 5.02 TeV were measured in the rapidity range −0.5 < yCMS < 0 for event ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Two-particle angular correlations were measured in pp collisions at s√=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
ALICE measured the nuclear modification factor (RAA) and elliptic flow (v2) of D mesons (D0, D+, D∗+ and D+ s ) in semi-central Pb–Pb collisions at √sNN = 5.02 TeV. The increased amount of data in semi-central Pb–Pb events ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The production cross sections for prompt charmed mesons D0, D+, D∗+ and D+s were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s√=7 TeV with the ALICE detector at the Large Hadron Collider ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The characterisation of the jet substructure can give insight into the microscopic nature of the modification inducedon high-momentum partons by the Quark-Gluon Plasma that is formed in ultra-relativistic heavy-ion collisions. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the first azimuthally differential measurements of the pion source size relative to the second harmonic event plane in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of √ s N N = 2.76 ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The transverse momentum ( pT ) spectra and elliptic flow coefficient ( v2 ) of deuterons and anti-deuterons at mid-rapidity ( |y|<0.5 ) are measured with the ALICE detector at the LHC in Pb–Pb collisions at sNN−−−√ ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at sNN−−−√=2.76 TeV and p-Pb collisions at sNN−−−√=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN−−−√=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 < y cms ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Azimuthally differential femtoscopic measurements, being sensitive to spatio-temporal characteristics of the source as well as to the collective velocity fields at freeze-out, provide very important information on the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The production of muons from heavy-flavour hadron decays in p–Pb collisions at was studied for GeV/c with the ALICE detector at the CERN LHC. The measurement was performed at forward (p-going direction) and backward ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
In ultra relativistic heavy-ion collisions at the Large Hadron Collider (LHC), conditions are met to produce a hot, denseand strongly interacting medium known as the Quark Gluon Plasma (QGP). Quarks and gluons from incoming ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the first ever measurements of femtoscopic correlations between the K0 S and K± particles. The analysis was performed on the data from Pb–Pb collisions at √sNN = 2.76 TeV measured by the ALICE experiment. The ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the ALICE results on the nuclear modification factor and elliptic flow of electrons and muons from open heavy-flavour hadron decays at mid-rapidity and forward rapidity in Pb–Pb collisions at √sNN = 2.76 and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Particle identification is an important feature of the ALICE detector at the LHC. In particular, for particle identification via the time-of-flight technique, the precise determination of the event collision time represents ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Among the probes used to investigate the properties of the Quark-Gluon Plasma, the measurement of the energy loss of high-energy partons can be used to put constraints on energy-loss models and to ultimately access medium ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Dielectrons produced in ultra-relativistic heavy-ion collisions provide a unique probe of the whole system evolution as they are unperturbed by final-state interactions. The dielectron continuum is extremely rich in physics ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The second and the third order anisotropic flow, V2and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2and ε3, in the initial density distribution. In addition to their dependence on ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
First experimental results are presented on event-by-event net-proton fluctuation measurements in Pb- Pb collisions at √sNN = 2.76 TeV, recorded by the ALICE detector at the CERN LHC. The ALICE detector is well suited for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Two-particle correlations in relative azimuthal angle (Δφ) and pseudorapidity (Δη) have been used to study heavy-ion collision dynamics, including medium-induced jet modification. Further investigations also showed the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The second and the third order anisotropic flow, V2 and V3, are determined by the corresponding initial spatial anisotropy coefficients, ε2 and ε3, in the initial density distribution. On the contrary, the higher order ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We report measurement of the semi-inclusive distribution of charged-particle jets recoiling from a high transverse momentum (pT) hadron trigger, for p–Pb collisions at √sNN = 5.02 TeV, in p–Pb events classified by event ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
W and Z bosons are massive weakly-interacting particles, insensitive to the strong interaction. They provide therefore a medium-blind probe of the initial state of the heavy-ion collisions. The final results for the W and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Strangeness production is a key tool to understand the properties of the medium formed in heavy-ion collisions: an enhanced production of strange particles was early proposed as one of the signatures of the Quark-Gluon ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We report measurements of two jet shapes, the ratio of 2-Subjettiness to 1-Subjettiness (τ2/τ1) and the opening angle between the two axes of the 2-Subjettiness jet shape, which is obtained by reclustering the jet with the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the charged-particle multiplicity distributions over a wide pseudorapidity range ( −3.4<η<5.0 ) for pp collisions at s√=0.9,7 , and 8 TeV at the LHC. Results are based on information from the Silicon Pixel ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the charged-particle pseudorapidity density in pp, p–Pb, and Pb–Pb collisions at √sNN = 5.02 TeV over a broad pseudorapidity range. The distributions are determined using the same experimental apparatus and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The availability at the LHC of the largest collision energy in pp collisions allows a significant advance in the measurement of J/ψ production as function of event multiplicity. The interesting relative increase observed ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Two- and multi-particle azimuthal correlations have proven to be an excellent tool to probe the properties of thestrongly interacting matter created in heavy-ion collisions. Recently, the results obtained for multi-particle ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
ALICE at the LHC provides unique capabilities to study charmonium production at low transverse momenta (pT). At central rapidity, (|y| < 0.8), ALICE can reconstruct J/ψ via their decay into two electrons down to zero pT. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The ALICE collaboration has measured the inclusive charmonium production at forward rapidity in Pb-Pb and p-Pb collisions at √sNN = 5.02 TeV and √sNN = 8.16 TeV, respectively. In Pb-Pb collisions, the J/ψ and ψ(2S) nuclear ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The study of identified particle production as a function of transverse momentum (pT) and event multiplicity in protonproton (pp) collisions at different center-of-mass energies (√s) is a key tool for understanding ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Elliptic (v2) and higher harmonic (v3, v4) flow coefficients of π±, K±, p(p), and the φ-meson, measured in Pb-Pb collisions at the highest-ever center-of-mass energy of √sNN = 5.02 TeV, are presented. The results were ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Direct photon production in heavy-ion collisions provides a valuable set of observables to study the hot QCD medium. The direct photons are produced at different stages of the collision and escape the medium unaffected. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Ultra-peripheral Pb-Pb collisions, in which the two nuclei pass close to each other, but at an impact parameter greater than the sum of their radii, provide information about the initial state of nuclei. In particular, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at √ s NN = 2.76 TeV. Femtoscopy is used to measure the space-time characteristics of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
Highlights of recent results from the ALICE collaboration are presented. The collision systems investigated are Pb–Pb, p–Pb, and pp, and results from studies of bulk particle production, azimuthal correlations, open and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
The ALICE Collaboration and the ALICE O2 project have carried out detailed studies for a new online computing facility planned to be deployed for Run 3 of the Large Hadron Collider (LHC) at CERN. Some of the main aspects ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)