1,951 research outputs found
The horn, the hadron mass spectrum and the QCD phase diagram - the statistical model of hadron production in central nucleus-nucleus collisions
We present the status of the description of hadron production in central
nucleus-nucleus collisions within the statistical model . The recent inclusion
of very high-mass resonances and the sigma meson leads to an improved
description of the data, in particular the energy dependence of the K+/pi+
ratio at SPS energies (``the horn''). The connection to the QCD phase diagram
is discussed.Comment: 4 pages, 3 figures; presented at the Nucleus-Nucleus 2009 conference,
Beijing, Aug. 200
The thermal model on the verge of the ultimate test: particle production in Pb-Pb collisions at the LHC
We investigate the production of hadrons in nuclear collisions within the
framework of the thermal (or statistical hadronization) model. We discuss both
the ligh-quark hadrons as well as charmonium and provide predictions for the
LHC energy. Even as its exact magnitude is dependent on the charm production
cross section, not yet measured in Pb-Pb collisions, we can confidently predict
that at the LHC the nuclear modification factor of charmonium as a function of
centrality is larger than that observed at RHIC and compare the experimental
results to these predictions.Comment: 4 pages, 3 figures; proceedings of QM201
The statistical model in Pb-Pb collisions at the LHC
We briefly review the predictions of the thermal model for hadron production
in comparison to latest data from RHIC and extrapolate the calculations to LHC
energy. Our main emphasis is to confront the model predictions with the
recently released data from ALICE at the LHC. This comparison reveals an
apparent anomaly for protons and anti-protons which we discuss briefly. We also
demonstrate that our statistical hadronization predictions for J/
production agree very well with the most recent LHC data, lending support to
the picture in which there is complete charmonium melting in the quark-gluon
plasma (QGP) followed by statistical generation of J/ mesons at the phase
boundary.Comment: 4 pages, 3 figures, proceedings of QM201
Production of light nuclei, hypernuclei and their antiparticles in relativistic nuclear collisions
We present, using the statistical model, an analysis of the production of
light nuclei, hypernuclei and their antiparticles in central collisions of
heavy nuclei. Based on these studies we provide predictions for the production
yields of multiply-strange light nuclei.Comment: 9 pages, 6 figues; v2: final versions accepted for publication (Phys.
Lett. B
Confronting LHC data with the statistical hadronization model
The most recent data from the CERN LHC are compared with calculations within
the statistical hadronization model. The parameters temperature und baryon
chemical potential are fitted to the data. The best fit yields a temperature of
156 MeV, slightly below the expectation from RHIC data. Proton yields are
nearly three standard deviations below this fit and possible reasons are
discussed.Comment: Proceedings of Strange Quark Matter 2013 Conference, to be published
in J. Phys.
Heavy quark(onium) at LHC: the statistical hadronization case
We discuss the production of charmonium in nuclear collisions within the
framework of the statistical hadronization model. We demonstrate that the model
reproduces very well the availble data at RHIC. We provide predictions for the
LHC energy where, dependently on the charm production cross section, a
dramatically different behaviour of charmonium production as a function of
centrality might be expected. We discuss also the case in elementary
collisions, where clearly the statistical model does not reproduce the
measurements.Comment: 8 pages, 5 figures; proceeding of SQM09, Buzios, Brazil, to be
published in J. Phys.
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