High transverse momentum triggered correlations over a large pseudorapidity acceptance in Au+Au collisions at s(NN)**1/2 = 200 GeV
By B.Alver, et al., for the Brahms collaboration. 2009
221 citations recorded by the source corpus.
A measurement of two-particle correlations with a high transverse momentum trigger particle (p{sub T}{sup trig}>2.5 GeV/c) is presented for Au+Au collisions at sq root(s{sub NN})=200 GeV over the uniquely broad longitudinal acceptance of the PHOBOS detector (-4<{Delta}{eta}<2). A broadening of the away-side azimuthal correlation compared to elementary collisions is observed at all {Delta}{eta}. As in p+p collisions, the near side is characterized by a peak of correlated partners at small angle relative to the trigger particle. However, in central Au+Au collisions an additional correlation extended in {Delta}{eta} and known as the 'ridge' is found to reach at least |{Delta}{eta}|approx =4. The ridge yield is largely independent of {Delta}{eta} over the measured range, and it decreases towards more peripheral collisions. For the chosen p{sub T}{sup trig} cut, the ridge yield is consistent with zero for events with less than roughly 100 participating nucleons.
Subfields: Aerospace Engineering, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/cd0e737dfa035c8210085c574d8827a569de3093
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Citations in the corpus
- Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC (2010, background): “Several novel correlation structures over large ∆η were observed in azimuthal correlations for intermediate particle transverse momenta, pT ≈ 1 − 5 GeV/c [8, 9].”