Nuclear dependence of charm production by a 340 GeV π- beam
نویسندگان
چکیده
منابع مشابه
Production of charm mesons at high transverse momentum in 515 GeV / c π − - nucleon
We present results on the production of high transverse momentum charm mesons in collisions of 515 GeV/c negative pions with beryllium and copper targets. The experiment recorded a large sample of events containing high transverse momentum (pT ) showers detected in an electromagnetic calorimeter. From these data, a sample of charm mesons has been reconstructed via their decay into the fully cha...
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Consequences resulting from the DD excess derived indirectly by the NA50 experiment in S+U and Pb+Pb collisions at √ s=19, 17 GeV, relevant for the identification of the QCD phase transition in these collisions, are discussed. The dependence of open and closed charm yields in Pb+Pb collisions on the number of participating nucleons (N) indicates non thermal charm production and J/Ψ dissociation...
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Using the CLEO-c detector at the Cornell Electron Storage Ring, we have measured inclusive and exclusive cross sections for the production of D, D and D s mesons in e + e − annihilations at thirteen center-of-mass energies between 3.97 and 4.26 GeV. Exclusive cross sections are presented for final states consisting of two charmed mesons (DD̄, D∗D̄, D∗D̄∗, D s D − s , D ∗+ s D − s , and D ∗+ s D ∗−...
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The π/π ratio is examined as a function of isospin asymmetry and beam energy for central collisions induced by neutron-rich nuclei within an isospindependent hadronic transport model. The π/π ratio is found to increase with the isospin asymmetry, but decrease with the beam energy of the reaction. For neutron-rich systems, such as, Sn + Sn and Sn + Sn, the sensitivity of π/π ratio to nuclear sym...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1992
ISSN: 0370-2693
DOI: 10.1016/0370-2693(92)90460-l