Refine
Year of publication
Language
- English (272)
Has Fulltext
- yes (272)
Is part of the Bibliography
- no (272)
Keywords
- LHC (4)
- ALICE experiment (3)
- Hadron-Hadron Scattering (3)
- Beauty production (2)
- Charm physics (2)
- Elliptic flow (2)
- Heavy Ions (2)
- Single electrons (2)
- pp collisions (2)
- ALICE (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charged-particle multiplicity (1)
- Charm quark spatial diffusion coefficient (1)
- Cold nuclear matter effects (1)
- Collectivity (1)
- Correlation (1)
- Diffraction (1)
- Elastic scattering (1)
- Groomed jet radius (1)
- Heavy Ion Experiments (1)
- Heavy Quark Production (1)
- Heavy flavor production (1)
- Heavy ions (1)
- Heavy-Ion Collision (1)
- Heavy-flavor decay electron (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion collision (1)
- Invariant Mass Distribution (1)
- J/ψ suppression (1)
- Jet substructure (1)
- Jets (1)
- Mid-rapidity (1)
- Minimum Bias (1)
- Monte Carlo (1)
- Multi-strange baryons (1)
- Multiple parton interactions (1)
- Pb–Pb collisions (1)
- Production Cross Section (1)
- Proton-proton collisions (1)
- Proton–proton (1)
- Quarkonium (1)
- RHIC (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Resolution Parameter (1)
- Shear viscosity (1)
- SoftDrop (1)
- Splitting function (1)
- Systematic Uncertainty (1)
- Time Projection Chamber (1)
- p+p collisions (1)
- spectra (1)
Institute
- Physik (249)
- Frankfurt Institute for Advanced Studies (FIAS) (243)
- Informatik (215)
- Hochschulrechenzentrum (2)
- Medizin (1)
We present results on transverse momentum (pT) and rapidity (y) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive J/ψ and ψ(2S) at forward rapidity (2.5<y<4) as well as ψ(2S)-to-J/ψ cross section ratios. These quantities are measured in pp collisions at center of mass energies s√=5.02 and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at s√=2.76, 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full pT range, provided that both contributions are summed. In particular, it is found that for pT>15 GeV/c the non-prompt contribution reaches up to 50% of the total charmonium yield.
Long-range angular correlations on the near and away side in p–Pb collisions at √sNN=5.02 TeV
(2013)
Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p–Pb collisions at a nucleon–nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5<pT,assoc<pT,trig<4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and pT bins, and the widths show no significant evolution with event multiplicity or pT. These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge.