Viser treff 1-20 av 214

• #### 3ΛH and -3Λ-H production in Pb-Pb collisions at √sNN=2.76 TeV ﻿

(Journal article; Peer reviewed, 2016)
The production of the hypertriton nuclei 3_Hand 3¯_Hhas been measured for the first time in Pb–Pbcollisions at √sNN=2.76TeVwith the ALICE experiment at LHC. The pT-integrated 3_Hyield in one unity of rapidity, dN/dy ×B.R. ...
• #### Addressing the hypertriton lifetime puzzle with ALICE at the LHC ﻿

(Journal article; Peer reviewed, 2019)
The ALICE Collaboration collected a large data sample of Pb-Pb collisions at in 2015 at the Large Hadron Collider (LHC) and the excellent particle identification (PID) capabilities allow for the detection of rarely produced ...
• #### ALICE measurement of the J/ψ nuclear modification factor at mid-rapidity in Pb–Pb collisions at √sNN = 5.02 TeV ﻿

(Journal article; 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. ...
• #### ALICE measurements of flow coefficients and their correlations in small (pp and p–Pb) and large (Xe–Xe and Pb–Pb) collision systems ﻿

(Journal article; Peer reviewed, 2019)
Many observables which are used as a signature of the collective effects in heavy-ion collisions when measured in high multiplicity pp and pA interactions reveal a very similar behaviour. We will present first measurements ...
• #### ALICE results on system-size dependence of charged-particle multiplicity density in p–Pb, Pb–Pb and Xe–Xe collisions ﻿

(Journal article; Peer reviewed, 2019)
Particle production at LHC energies involves the interplay of hard (perturbative) and soft (non-perturbative) QCD processes. Global observables, such as the charged-particle multiplicity, are related to the initial geometry ...
• #### Analysis of the apparent nuclear modification in peripheral Pb–Pb collisions at 5.02 TeV ﻿

(Journal article; Peer reviewed, 2019)
Charged-particle spectra at midrapidity are measured in Pb–Pb collisions at the centre-of-mass energy per nucleon–nucleon pair TeV and presented in centrality classes ranging from most central (0–5%) to most peripheral ...
• #### Anisotropic flow in Xe–Xe collisions at √sNN = 5.44 TeV ﻿

(Journal article; Peer reviewed, 2018)
The ﬁrst measurements of anisotropic ﬂow coeﬃcients vn for mid-rapidity charged particles in Xe–Xe collisions at √sNN = 5.44 TeV are presented. Comparing these measurements to hose from Pb–Pb collisions at √sNN = 5.02 TeV, ...
• #### Anisotropic flow of charged particles in Pb-Pb collisions at √sNN =5.02 TeV ﻿

(Journal article; Peer reviewed, 2016)
• #### Anisotropic flow of identified particles in Pb-Pb collisions at √sNN=5.02 TeV ﻿

(Journal article; Peer reviewed, 2018)
The elliptic (v2), triangular (v3), and quadrangular (v4) flow coefficients of π±, K±, p+p¯¯¯,Λ+Λ¯¯¯¯,K0S, and the ϕ-meson are measured in Pb-Pb collisions at s√NN=5.02 TeV. Results obtained with the scalar product method ...
• #### Anisotropic flow of inclusive and identified particles in Pb–Pb collisions at √sNN=5.02 TeV with ALICE ﻿

(Journal article; 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 obtained ...
• #### Anomalous evolution of the near-side jet peak shape in Pb-Pb collisions at √sNN=2.76 TeV ﻿

(Journal article; 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 ...
• #### Azimuthal Anisotropy of Heavy-Flavor Decay Electrons in p-Pb Collisions at √sNN=5.02  TeV ﻿

(Journal article; Peer reviewed, 2019)
Angular correlations between heavy-flavor decay electrons and charged particles at midrapidity (|η| < 0.8) are measured in p-Pb collisions at √sNN=5.02  TeV. The analysis is carried out for the 0%–20% (high) and 60%–100% ...
• #### Azimuthally differential pion femtoscopy in Pb-Pb collisions at √sNN = 2.76  TeV ﻿

(Journal article; 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 √sNN = 2.76 TeV. The ...
• #### Azimuthally differential pion femtoscopy relative to the second and thrid harmonic in Pb-Pb 2.76 TeV collisions from ALICE ﻿

(Journal article; 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 ...
• #### Azimuthally-differential pion femtoscopy relative to the third harmonic event plane in Pb–Pb collisions at √sNN = 2.76 TeV ﻿

(Journal article; Peer reviewed, 2018)
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 ...
• #### Balance functions of (un)identified hadrons in Pb–Pb, p–Pb, and pp collisions at the LHC ﻿

(Journal article; Peer reviewed, 2019)
In ultrarelativistic heavy-ion collisions, correlations of particles with opposite quantum numbers provide insight into quark production mechanisms and time scales, collective motion, and re-scattering in the hadronic ...
• #### Calibration of the photon spectrometer PHOS of the ALICE experiment ﻿

(Journal article; Peer reviewed, 2019)
The procedure for the energy calibration of the high granularity electromagnetic calorimeter PHOS of the ALICE experiment is presented. The methods used to perform the relative gain calibration, to evaluate the geometrical ...
• #### Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe–Xe collisions at √sNN=5.44 TeV ﻿

(Journal article; Peer reviewed, 2019)
In this Letter, the ALICE Collaboration presents the first measurements of the charged-particle multiplicity density, , and total charged-particle multiplicity, , in Xe–Xe collisions at a centre-of-mass energy per ...
• #### Centrality dependence of charged jet production in p–Pb collisions at √sNN = 5.02 TeV ﻿

(Journal article; Peer reviewed, 2016)
Measurements of charged jet production as a function of centrality are presented for p–Pb collisions recorded at√sNN = 5.02TeVwith theALICEdetector. Centrality classes are determined via the energy deposit in neutron ...
• #### Centrality dependence of high-pT D meson suppression in Pb-Pb collisions at √sNN = 2.76 TeV ﻿

(Journal article; Peer reviewed, 2015)
The nuclear modi cation factor, RAA, of the prompt charmed mesons D0, D+ and D +, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy p sNN = 2:76 TeV in two transverse ...