Collisions at Rhic
نویسنده
چکیده
We study the production of W and Z gauge bosons in proton-proton and proton-neutron collisions up to a center-of-mass energy √ s = 0.5 TeV , in connection with the realistic possibility of having proton-deuteron collisions at RHIC with a high luminosity. We stress the importance of measuring unpolarized cross sections for a better determination of the flavor asymmetry of the sea quarks. Since polarized proton beams will be available at RHIC, we evaluate several spin-dependent observables like, double helicity asymmetries ALL as a test of the sea quark polarization, double transverse spin asymmetries ATT as a practical way to determine a new structure function, the nucleon transversity distribution h1(x), and parity-violating asymmetries AL as a further test of our present knowledge of polarized parton distributions. Number of figures : 19 January 1994 CPT-94/P.3000 anonymous ftp or gopher : cpt.univ-mrs.fr
منابع مشابه
Analysis of identified particle yields and Bose - Einstein ( HBT ) correlations in p + p collisions at RHIC
Simultaneous Buda-Lund hydro model fits are presented to identified particle spectra and two-particle Bose-Einstein correlations as measured by the STAR collaboration in √ s = 200 GeV p+p collisions at RHIC. Preliminary results are compared to similar results in Au+Au collisions at RHIC, hadron+p reactions as well as Pb+Pb collisions at CERN SPS.
متن کاملHidden Charm Production in Au + Au Collisions at RHIC Energies
We consider various possibilities for the production of open charm and J/ψ at RHIC energies in heavy ion collisions. We discuss several recently developed pictures for J/ψ production and argue that a measurement at RHIC energies is crucial for disentangling these different descriptions. Typeset using REVTEX
متن کاملThe Color Glass Condensate at RHIC
The Color Glass Condensate formalism and its application to high energy heavy ion collisions at RHIC are discussed. We argue that the RHIC data supports the view that the Color Glass Condensate provides the initial conditions for goldgold collisions at RHIC while final state (Quark Gluon Plasma) effects are responsible for the high pt suppression in mid rapidity. At forward rapidities in deuter...
متن کاملSoft-hadronic Observables for Relativistic Heavy-ion Collisions at Rhic and Lhc * * *
The relativistic hydrodynamics together with the single-freeze-out statistical hadronization model is used to describe the midrapidity hadron production in ultra-relativistic heavy-ion collisions at RHIC and LHC. At the highest RHIC energy our approach gives a quite satisfactory global description of soft hadronic observables including the HBT radii. With the increased initial energy, from RHIC...
متن کاملGlobal Observables at RHIC
The first three measurements from the RHIC program were results on global observables: charged particle multiplicity (Nch), transverse energy (ET ) and elliptic flow (v2). They offer a look at the large-scale features of particle production in high-energy nuclear collisions, with particular insight into entropy production and collective behavior. Results from all of the RHIC experiments are dis...
متن کاملDiffraction at Rhic
The relativistic heavy ion collider (RHIC) offers many opportunities to study diffraction in pp, pA and AA collisions. Because both proton beams can be polarized, RHIC offers the unique possibility of studying polarization effects in diffraction. We will introduce diffraction at RHIC and present three compelling physics topics: hard diffraction with polarized beams, identification of exotic mes...
متن کامل