5,522 research outputs found

    Nuclear modification at sqrt{s_{NN}}=17.3 GeV, measured at NA49

    Full text link
    Transverse momentum spectra up to 4.5 GeV/c were measured around midrapidity in Pb+Pb reactions at sqrt{s_{NN}}=17.3 GeV, for pi^{+/-}, p, pbar and K^{+/-}, by the NA49 experiment. The nuclear modification factors R_{AA}, R_{AA/pA} and R_{CP} were extracted and are compared to RHIC results at sqrt{s_{NN}}=200 GeV. The modification factor R_{AA} shows a rapid increase with transverse momentum in the covered region. The modification factor R_{CP} shows saturation well below unity in the pi^{+/-} channel. The extracted R_{CP} values follow the 200 GeV RHIC results closely in the available transverse momentum range for all particle species. For pi^{+/-} above 2.5 GeV/c transverse momentum, the measured suppression is smaller than that observed at RHIC. The nuclear modification factor R_{AA/pA} for pi^{+/-} stays well below unity.Comment: Proceedings of Quark Matter 2008 conferenc

    Hints of incomplete thermalization in RHIC data

    Full text link
    The large elliptic flow observed in Au-Au collisions at RHIC is often put forward as a compelling evidence for the formation of a strongly-interacting quark-gluon plasma. The main argument is that the measured elliptic flow is as large as the value given by fluid-dynamics models that assume complete thermalization. It is argued that this claim may not be justified, since a detailed examination of experimental data rather suggests that the system created is not fully equilibrated at the time when anisotropic flow develops.Comment: 8 pages, 2 eps-figures, Talk given at the Workshop on QGP Thermalization (QGPTH05), Vienna, 10-12 Aug 200

    Positive allosteric modulators of the Ό‐opioid receptor: a novel approach for future pain medications

    Full text link
    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/109803/1/bph12599.pd

    RETAIL MARKETING INSTRUMENTS – AN ANALYTIC APPROACH

    Get PDF
    Each of the classical marketing mix policies get specific meanings and characteristics in retail. Some of the authors suggest their accurate transposition in retail, meanwhile others highlight those elements derivate from the service marketing mix. There is also the tendency of outlining the in-store-management, the location or the customer “binding” policy as independent marketing mix policies in retail.retail marketing, marketing mix, assortment, price, service, communication, location, in-store-management, customer loyalty

    Empirical considerations regarding consumers' perception on an emer0ging market

    Get PDF
    Both on their home markets, as well as on the emerging ones - the case of Cluj-Napoca, Romania - European retailers face a new situation, by excellence a challenging one. On the one side, the competitive market has been in a continuous and constant expansion for several years and on the other side consumers become more and more sophisticated and choosy. Based on the accumulated experience they not only change their demands towards retailers, but also their perception of them. The present paper pursues a clear delineation through an empirical research of the elements or the facets of the marketing mix in a retail context. As it is already known, retailers use a specific mix in order to better position themselves on the market. As we shall prove, consumers are also able to ultimately perceive the factors by means of which retailers try to influence them, respectively to act over them.Both on their home markets, as well as on the emerging ones - the case of Cluj-Napoca, Romania - European retailers face a new situation, by excellence a challenging one. On the one side, the competitive market has been in a continuous and constant expansion for several years and on the other side consumers become more and more sophisticated and choosy. Based on the accumulated experience they not only change their demands towards retailers, but also their perception of them. The present paper pursues a clear delineation through an empirical research of the elements or the facets of the marketing mix in a retail context. As it is already known, retailers use a specific mix in order to better position themselves on the market. As we shall prove, consumers are also able to ultimately perceive the factors by means of which retailers try to influence them, respectively to act over them

    Status and plans of the ion program of NA61 at the CERN SPS

    Full text link
    The NA61/SHINE at the CERN SPS is a new experiment to study hadron production in p+p p+A, h+A and A+A interactions. The main goal of the NA61 ion program is to explore the phase diagram (T - mu_B) of strongly interacting matter. In particular, we plan to study the properties of the onset of deconfinement and to search for the signatures of the critical point. A two-dimensional scan of the phase diagram will be performed by varying the energy (13A-158A GeV) and system size (p+p, Be+Be, Ar+Ca, Xe+La) of collisions. This paper summarizes the status and plans of the NA61/SHINE ion program. In particular the detector upgrades, data taking schedule and the first results on spectra and correlations are discussed.Comment: Proceedings of "Critical Point and Onset of Deconfinement - CPOD 2011", Wuhan, November 7-11, 2011, version accepted by Central European Journal of Physic

    Evidence of the Coulomb force effects in the cross sections of the deuteron-proton breakup at 130 MeV

    Get PDF
    High precision cross-section data of the deuteron-proton breakup reaction at 130 MeV deuteron energy are compared with the theoretical predictions obtained with a coupled-channel extension of the CD Bonn potential with virtual Delta-isobar excitation, without and with inclusion of the long-range Coulomb force. The Coulomb effect is studied on the basis of the cross-section data set, extended in this work to about 1500 data points by including breakup geometries characterized by small polar angles of the two protons. The experimental data clearly prefer predictions obtained with the Coulomb interaction included. The strongest effects are observed in regions in which the relative energy of the two protons is the smallest.Comment: 9 pages, 3 figures, submitted to Physics Letters
    • 

    corecore