Flow Dominance and Factorization of Transverse Momentum Correlations in Pb-Pb Collisions at the LHC
ALICE Collaboration. (2017). Flow Dominance and Factorization of Transverse Momentum Correlations in Pb-Pb Collisions at the LHC. Physical Review Letters, 118(16), Article 162302. https://doi.org/10.1103/PhysRevLett.118.162302
Julkaistu sarjassa
Physical Review LettersTekijät
Päivämäärä
2017Tekijänoikeudet
© 2017 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
We present the first measurement of the two-particle transverse momentum differential correlation
function, P2 ≡ hΔpTΔpTi=hpTi2, in Pb-Pb collisions at √sNN p ¼ 2.76 TeV. Results for P2 are reported as
a function of the relative pseudorapidity (Δη) and azimuthal angle (Δφ) between two particles for different
collision centralities. The Δϕ dependence is found to be largely independent of Δη for jΔηj ≥ 0.9. In the
5% most central Pb-Pb collisions, the two-particle transverse momentum correlation function exhibits a
clear double-hump structure around Δφ ¼ π (i.e., on the away side), which is not observed in number
correlations in the same centrality range, and thus provides an indication of the dominance of triangular
flow in this collision centrality. Fourier decompositions of P2, studied as a function of the collision
centrality, show that correlations at jΔηj ≥ 0.9 can be well reproduced by a flow ansatz based on the
notion that measured transverse momentum correlations are strictly determined by the collective motion of
the system.
...
Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
0031-9007Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/26998852
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Lisenssi
Ellei muuten mainita, aineiston lisenssi on © 2017 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Jet-Fragmentation Transverse Momentum from Di-Hadrons Correlations in √s_NN = 5.02 TeV Pb-Pb Collisions
Gilbert, Alexander Kevin (2020)The jets’ transverse structure in Pb-Pb collision system has been studied with jet-fragmentation transverse momentum (jT ) distribution. The data were collected from ALICE experiment at LHC in energy √s_NN = 5.02 TeV per ... -
Multiplicity and transverse momentum evolution of charge-dependent correlations in pp, p–Pb, and Pb–Pb collisions at the LHC
ALICE Collaboration (Springer Berlin Heidelberg, 2016)We report on two-particle charge-dependent correlations in pp, p–Pb, and Pb–Pb collisions as a function of the pseudorapidity and azimuthal angle difference, η and ϕ respectively. These correlations are studied using ... -
Two-particle differential transverse momentum and number density correlations in p-Pb collisions at 5.02 TeV and Pb-Pb collisions at 2.76 TeV at the CERN Large Hadron Collider
ALICE Collaboration (American Physical Society, 2019)We present measurements of two-particle differential number correlation functions R2 and transverse momentum correlation functions P2, obtained from p-Pb collisions at 5.02 TeV and Pb-Pb collisions at 2.76 TeV. The results ... -
Studying high pT momentum azimuthal anisotropies in unpolarized proton-proton collisions using transverse momentum dependent (TMD) parton distribution and fragmentation functions
Soudi, Ismail; Majumder, Abhijit (Sissa, 2024)Recent experimental results have shown that small systems such as p-p and p-A collisions exhibit a non-zero azimuthal anisotropy even at large pT.However, no evidence of jet quenching has been observed in these collisions. We ... -
Measurement of two-particle correlations with respect to second- and third-order event planes in Au+Au collisions at √sNN = 200 GeV
PHENIX Collaboration (American Physical Society, 2019)We present measurements of azimuthal correlations of charged hadron pairs in √sNN = 200 GeV Au + Au collisions for the trigger and associated particle transverse-momentum ranges of 1 < pt T < 10 GeV/c and 0.5 < pa T < ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.