Emerging picture of hard scattering phenomena in p + p collisions at sqrt(s) = 7 TeV in ALICE

Jan Rak, The ALICE collaboration

Tutkimustuotos: ArtikkelijulkaisuKonferenssiartikkeliTieteellinenvertaisarvioitu

Abstrakti

In the first LHC 2009 and 2010 runs the ALICE experiment collected about 10 μb−1 at sqrt(s) = 900 GeV and more than 20 nb1 at sqrt(s) = 7 TeV bench for the pQCD description of hard scattering phenomena at the highest center of mass energy p + p collisions ever recorded. These data are used to study the universality of the charged hadron invariant yields measured by the ALICE experiment in terms of xT scaling. Leading particle associated yield is used to study the angular correlations. A comparison of per-trigger yield in sqrt(s) = 900 GeV and sqrt(s) = 7TeV data samples is presented. An increasing role of the soft QCD radiation is deduced from the slope of the associated particle yield in the region perpendicular to the leading particle.
Alkuperäiskielienglanti
LehtiNuclear Physics, Section A
Vuosikerta855
Numero1
Sivut461-464
Sivumäärä4
ISSN0375-9474
DOI - pysyväislinkit
TilaJulkaistu - 1 huhtikuuta 2011
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
Tapahtuma4th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions – HP2010 - Eilat, Israel
Kesto: 10 lokakuuta 201015 lokakuuta 2010

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