Antideuteron production in 158A GeV/c Pb + Pb collisions
نویسندگان
چکیده
The invariant cross section as a function of transverse momentum for antideuterons produced in 158A GeV/c per nucleon Pb+Pb central collisions has been measured by the NA44 experiment at CERN. This measurement, together with a measurement of antiprotons, allows for the determination of the antideuteron coalescence parameter. The extracted coalescence radius is found to agree with the deuteron coalescence radius and radii determined from two particle correlations.
منابع مشابه
Features of particle multiplicities and strangeness production in central heavy ion collisions between 1 . 7 A and 158 A GeV
Features of particle multiplicities and strangeness production in central heavy ion collisions between 1.7A and 158A GeV/c. Abstract A systematic study is performed of fully integrated particle multiplicities in central Au–Au and Pb–Pb collisions at beam momenta of 1.7A GeV/c, 11.6A GeV/c (Au–Au) and 158A GeV/c (Pb–Pb) by using a statistical-thermal model. The close similarity of the colliding ...
متن کاملFeatures of particle multiplicities and strangeness production in central heavy ion collisions between 1 . 7 A and 158 A GeV / c . F . Becattini
Features of particle multiplicities and strangeness production in central heavy ion collisions between 1.7A and 158A GeV/c. Abstract A systematic study is performed of fully integrated particle multiplicities in central Au–Au and Pb–Pb collisions at beam momenta of 1.7A GeV, 11.6A GeV (Au–Au) and 158A GeV (Pb–Pb) by using a statistical-thermal model. The close similarity of the colliding system...
متن کاملDrell-Yan Cross Section and J/ψ Production in High-Energy Nucleus-Nucleus Collisions
We use the Drell-Yan differential distribution dN DY /dET in high-energy nucleusnucleus collisions to obtain a relation between the transverse energy ET and the impact parameter b. Such a relation is then utilized to study the transverse-energy dependence of J/ψ production in Pb-Pb collisions, using the J/ψ absorption model presented previously. The anomalous Pb-Pb suppression data at 158A GeV ...
متن کاملEnergy and System-size Dependence of Two-particle Azimuthal Correlations of High-pT Charged Hadrons at the CERN SPS
Angular correlations of high-pT hadrons can serve as a probe of interactions of partons with the dense medium produced in high-energy heavy-ion collisions but other sources of such correlations exist which can be non-negligible SPS energies. In an attempt to determine the primary source, NA49 has performed an energy and system-size scan of two-particle azimuthal correlations in central Pb+Pb, S...
متن کاملLow mass dimuons produced in relativistic nuclear collisions.
The NA60 experiment has measured low mass muon pair production in In-In collisions at 158A GeV with unprecedented precision. We show that these data are reproduced very well by a dynamical model with parameters scaled from fits to measurements of hadronic transverse mass spectra and Hanbury Brown-Twiss correlations in Pb-Pb and Pb-Au collisions at the same energy. The data are consistent with i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 85 13 شماره
صفحات -
تاریخ انتشار 2000