8,352 research outputs found
Production of /K/p from intermediate to high in pp, p-Pb and Pb-Pb collisions measured by ALICE
In this work the results on the transverse momentum distributions
( GeV/) of charged pions, kaons and (anti)protons,
measured in and collisions at TeV
and in collisions at TeV, are presented.
The evolution of the spectral shapes and particle ratios with multiplicity is
shown and the similarities among the different systems are discussed.Comment: 4 pages, 3 figures, Proceedings of the Conference: Hard Probes 2013.
November 4-8, 201
Identified particle pT spectra and particle contents in pp collisions measured with ALICE at the LHC
The excellent capabilities of the ALICE experiment for particle
identification allow to measure the identified hadron production in a wide
range of transverse momentum. In this work we present some results on
identified particle spectra, strange particle production and particle contents
measured in pp collisions at \sqrt{s} = 0.9, 2.76 and 7 TeV. The results are
compared with Monte Carlo event generators predictions.Comment: 4 pages, 3 figures. Proceedings of parallel talk at the Physics at
the LHC 2012. Vancouver, BC (Canada
Production of pions, kaons and protons at high pT in sqrt{s_NN}=2.76 TeV Pb-Pb collisions
In this work we report on the production of charged pions, kaons, and (anti)
protons in pp and Pb-Pb collisions at sqrt{s_NN}= 2.76 TeV for 3 < pT < 20
GeV/c. The evolution of the nuclear modification factor, RAA, with collision
centrality and transverse momentum is discussed.Comment: 4 pages, 3 figures. Proceedings for Quark Matter 2012, Washington
D.C., August 13-18, 201
Event Shape Analysis in ALICE
The jets are the final state manifestation of the hard parton scattering.
Since at LHC energies the production of hard processes in proton-proton
collisions will be copious and varied, it is important to develop methods to
identify them through the study of their final states. In the present work we
describe a method based on the use of some shape variables to discriminate
events according their topologies. A very attractive feature of this analysis
is the possibility of using the tracking information of the TPC+ITS in order to
identify specific events like jets. Through the correlation between the
quantities: thrust and recoil, calculated in minimum bias simulations of
proton-proton collisions at 10 TeV, we show the sensitivity of the method to
select specific topologies and high multiplicity. The presented results were
obtained both at level generator and after reconstruction. It remains that with
any kind of jet reconstruction algorithm one will confronted in general with
overlapping jets. The present method determines areas where one does encounter
special topologies of jets in an event. The aim is not to supplant the usual
jet reconstruction algorithms, but rather to allow an easy selection of events
allowing then the application of algorithms.Comment: 24 pages, ALICE Not
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