Author: Publisher:
ISBN:
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Languages : en
Pages : 14
Book Description
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5>
Forward-central Two-particle Correlations in P-Pb Collisions at [mml
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5>
Multiplicity Dependence of Jet-like Two-particle Correlation Structures in P-Pb Collisions at [mml
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Two-particle angular correlations between unidentified 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. The transverse-momentum range 0.7
Detailed Analysis of Two Particle Correlations in Central Pb-Au Collisions at 158 GeV Per Nucleon
Author: Dariusz AntończykPseudorapidity Dependence of Long-range Two-particle Correlations in $p$Pb Collisions at $\sqrt{s_{NN}}
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Two-particle correlations in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are studied as a function of the pseudorapidity separation (Delta eta) of the particle pair at small relative azimuthal angle (abs(Delta phi)
Two-particle Correlations in P+p and Pb+Pb Collisions at SPS Energies
Author: Bartosz MaksiakEvidence for Collective Multiparticle Correlations in P-Pb Collisions
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 17
Book Description
The second-order azimuthal anisotropy Fourier harmonics, v2, are obtained in p-Pb and PbPb collisions over a wide pseudorapidity ([eta]) range based on correlations among six or more charged particles. The p-Pb data, corresponding to an integrated luminosity of 35 nb-1, were collected during the 2013 LHC p-Pb run at a nucleon-nucleon center-of-mass energy of 5.02 TeV by the CMS experiment. A sample of semiperipheral PbPb collision data at √sNN=2.76 TeV, corresponding to an integrated luminosity of 2.5 [mu]b-1 and covering a similar range of particle multiplicities as the p-Pb data, is also analyzed for comparison. The six- and eight-particle cumulant and the Lee-Yang zeros methods are used to extract the v2 coefficients, extending previous studies of two- and four-particle correlations. For both the p-Pb and PbPb systems, the v2 values obtained with correlations among more than four particles are consistent with previously published four-particle results. These data support the interpretation of a collective origin for the previously observed long-range (large [Delta][eta]) correlations in both systems. The ratios of v2 values corresponding to correlations including different numbers of particles are compared to theoretical predictions that assume a hydrodynamic behavior of a p-Pb system dominated by fluctuations in the positions of participant nucleons. These results provide new insights into the multiparticle dynamics of collision systems with a very small overlapping region.
What Invariant One-particle Multiplicity Distributions and Two-particle Correlations are Telling Us about Relativistic Heavy-ion Collisions
Author: Publisher:
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Languages : en
Pages :
Book Description
The authors have used a nine-parameter expanding source model that includes special relativity, quantum statistics, resonance decays, and freeze-out on a realistic hypersurface in spacetime to analyze in detail invariant [pi][sup +], K[sup +], and K[sup [minus]] one-particle multiplicity distributions and [pi][sup +] and [pi][sup [minus]] two-particle correlations in nearly central collisions of Pb + Pb at p[sub lab]/A = 158 GeV/c. These studies confirm an earlier conclusion for nearly central collisions of Si + Au at p[sub lab]/A = 14.6 GeV/c that the freeze-out temperature is less than 100 meV and that both the longitudinal and transverse collective velocities -- which are anti-correlated with the temperature -- are substantial. The authors also reconciled their current results with those of previous analyses that yielded a much higher freeze-out temperature of approximately 140 meV for both Pb + Pb collisions at p[sub lab]/A = 158 GeV/c and other reactions. One type of analysis was based upon the use of a heuristic equation that neglects relativity to extrapolate slope parameters to zero particle mass. Another type of analysis utilized a thermal model in which there was an accumulation of effects from several approximations. The future should witness the arrival of much new data on invariant one-particle multiplicity distributions and two-particle correlations as functions of bombarding energy and/or size of the colliding nuclei. The proper analysis of these data in terms of a realistic model could yield accurate values for the density, temperature, collective velocity, size, and other properties of the expanding matter as it freezes out into a collection of noninteracting hadrons. A sharp discontinuity in the value of one or more of these properties could conceivably be the long-awaited signal for the formation of a quark-gluon plasma or other new physics.
Multiplicity Dependence of Jet-like Two-particle Correlation Structures in P-Pb Collisions at [arrow]"NN
![Multiplicity Dependence of Jet-like Two-particle Correlation Structures in P-Pb Collisions at [arrow]](https://books.google.com/books/content/images/frontcover/O_B4nQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 13
Book Description
Two-particle angular correlations between unidentified 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. The transverse-momentum range 0.7
Observation of Charge-dependent Azimuthal Correlations in PPb Collisions and Its Implication for the Search for the Chiral Magnetic Effect
Author: Publisher:
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Languages : en
Pages :
Book Description
Charge-dependent azimuthal particle correlations with respect to the second-order event plane in pPb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at the LHC. The measurement is performed with a three-particle correlation technique, using two particles with the same or opposite charge within the pseudorapidity range abs(eta)
Author: CMS Collaboration