70 research outputs found

    Teviot Place then; Fifty-Five Years Ago

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    Having studied my preclinical subjects at Oxford and taken a B.A. degree in Physiology, I came home to Edinburgh in 1922 to do my clinical work. I thought it might be amusing and interesting to contrast our work, habits and behaviour at that time with what they are now, for the students of today are like everything else, different from what we were over half a century ago.To begin with they are, on the average, undoubtedly of a higher intellectual standard. In my day almost anyone could become a medical student provided he was not so completely halfwitted as to be unable to pass the simple matriculation examination demanded and provided his parents were ready to pay for him. Thus a number had indifferent intellectual qualifications

    Transverse momentum and collision energy dependence of high pTp_{T} hadron suppression in Au+Au collisions at ultrarelativistic energies

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    We report high statistics measurements of inclusive charged hadron production in Au+Au and p+p collisions at \sqrtsNN=200 GeV. A large, approximately constant hadron suppression is observed in central Au+Au collisions for 5\lt\pT\lt12 GeV/c. The collision energy dependence of the yields and the centrality and \pT dependence of the suppression provide stringent constraints on theoretical models of suppression. Models incorporating initial-state gluon saturation or partonic energy loss in dense matter are largely consistent with observations. We observe no evidence of \pT-dependent suppression, which may be expected from models incorporating jet attentuation in cold nuclear matter or scattering of fragmentation hadrons.Comment: Final journal version. Data tables for figures may be downloaded from the STAR home page: http://www.star.bnl.gov --> Publications --> Access to STAR published dat

    K(892)0K^{\star}(892)^{0} Production in Relativistic Heavy Ion Collisions at sNN=130\sqrt{s_{_{NN}}}=130 GeV

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    We report the first observation of K(892)0πKK^{\star}(892)^{0}\to\pi K in relativistic heavy ion collisions. The transverse momentum spectrum of (K0+Kˉ0)/2(K^{\star0}+\bar{K}^{\star0})/2 from central Au+Au collisions at sNN=130\sqrt{s_{_{NN}}}=130 GeV is presented. The ratios of the K0K^{\star0} yield derived from these data to the yields of negative hadrons, charged kaons, and ϕ\phi mesons have been measured in central and minimum bias collisions and compared with model predictions and comparable e+ee^{+}e^{-}, pppp, and pˉp\bar{p}p results. The data indicate no dramatic reduction of K0K^{\star0} production in relativistic heavy ion collisions despite expected losses due to rescattering effects.Comment: 6 pages, 3 figures, To be published in PRC
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