8 research outputs found
Recent results from NA61/SHINE
NA61/SHINE at the CERN SPS is a fixed-target experiment pursuing a rich
physics program including measurements for heavy ion, neutrino and cosmic ray
physics. The main goal of the strong interactions program is to study the
properties of the onset of deconfinement and to search for the signatures of
the critical point.
In this contribution the latest NA61/SHINE results on particle spectra as
well as on fluctuations and correlations from p+p, Be+Be, and Ar+Sc energy
scans will be presented. The NA61 measurements will be compared with world data
and with model predictions.Comment: Presented at Excited QCD 2017, Sintra, Portuga
NA61/SHINE results on fluctuations and correlations in p+p and Be+Be interactions at CERN SPS energies
The aim of the NA61/SHINE strong interaction program is to explore the phase
diagram of strongly interacting matter. The main physics goals are the study of
the onset of deconfinement and the search for the critical point of strongly
interacting matter. These goals are pursued by performing a beam momentum
(13 - 158 GeV/c) and system size (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La) scan.
This contribution presents results on transverse momentum and multiplicity
fluctuations from the Be+Be and p+p energy scan. Also, results on two-particle
correlations in pseudorapidity and azimuthal angle obtained in p+p interactions
will be shown. The influence of conservation laws and resonance decays on
multiplicity and chemical fluctuations of identified particles in p+p
interactions will be discussed. Obtained results will be compared with data
from other experiments and with model predictions.Comment: QM2015 pro
Latest results from the NA61/SHINE beam energy scan with p+p and Be+Be collisions
The NA61/SHINE experiment aims to discover the critical point of strongly
interacting matter and study the properties of the onset of deconfinement by
measurements of hadron production properties in proton-proton, proton-nucleus
and nucleus-nucleus interactions in the CERN SPS energy range.
This contribution presents results on the energy dependence of hadron spectra
and yields as well as on fluctuations and two-particle correlations in p+p and
centrality selected Be+Be collisions. In particular, the energy dependence of
the signal of deconfinement, the "horn", observed in central Pb+Pb collisions
is compared with the corresponding results from p+p interactions. Also
string-hadronic models are tested using hadron spectra and fluctuations
measured in p+p interactions. Results on fluctuations (multiplicity and
transverse momentum) are presented as a function of the collision energy for
Be+Be and p+p collisions in search for the critical point of strongly
interacting matter.Comment: HEP2015 proceeding
Generalisation of the identity method for determination of high-order moments of multiplicity distributions with a software implementation
The incomplete particle identification limits the experimentally-available
phase space region for identified particle analysis. This problem affects
ongoing fluctuation and correlation studies including the search for the
critical point of strongly interacting matter performed on SPS and RHIC
accelerators. In this paper we provide a procedure to obtain -th order
moments of the multiplicity distribution using the identity method,
generalising previously published solutions for and .
Moreover, we present an open source software implementation of this
computation, called \textit{Idhim}, that allows one to obtain the true moments
of identified particle multiplicity distributions from the measured ones
provided the response function of the detector is known.Comment: Minor corrections to previous version. Plots exchange
Study of the phase diagram of strongly interacting matter in the NA61/SHINE experiment
NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a fixed target experiment located at the CERN SPS. Its strong interactions program is devoted to study properties of the phase diagram of strongly interacting matter. For this goal, the two-dimensional scan is performed by measurements of hadron production properties as a function of collision energy (13A - 158A GeV/) and system size (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb). This contribution presents new results on the onset of deconfinement - the transition between the state of hadronic matter and the quark-gluon plasma. Also, new results on fluctuations and correlations devoted to the search for the critical point of strongly interacting matter will be presented. Obtained results are compared with the available data from other experiments and from various theoretical models.NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a fixed target experiment located at the CERN SPS. Its strong interactions program is devoted to study properties of the phase diagram of strongly interacting matter. For this goal the two-dimensional scan is performed by measurements of hadron production properties as a function of collision energy (13A - 158A GeV/) and system size (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb). This contribution presents new results on the onset of deconfinement - the transition between the state of hadronic matter and the quark-gluon plasma. Also, new results on fluctuations and correlations devoted to the search for the critical point of strongly interacting matter will be presented. Obtained results are compared with the available data from other experiments and from various theoretical models