منابع مشابه
Charmed Hadron Production at RHIC†
To extract information about polarized gluon distribution in the proton, charmed hadron, actually Λc , productions at RHIC experiment are studied. We found that the spin correlation asymmetry between the initial proton and the produced Λc is enable us to distinguish parameterization models of polarized gluons. † Talk presented by K. OHKUMA at 3rd Circum-Pan-Pacific Symposium on “High Energy Spi...
متن کاملHadron Production at Intermediate pT at RHIC
Large proton and antiproton enhancement with respect to pions has been observed at intermediate transverse momentum pT ≈ 2-5 GeV/c in Au+Au collisions at RHIC. To investigate the possible source of this anomaly, the production of φ mesons and two particle angular correlations triggered by mid-pT baryons or mesons are studied. We also present the first measurement of proton and antiproton produc...
متن کاملProbing Polarized Gluon Distributions through Charmed Hadron Production in Polarized pp Collisions at BNL–RHIC Energy
In order to extract information about behavior of polarized gluons in the nucleon, charmed hadron productions, i.e. D meson and Λ+c baryon productions, are studied in polarized pp reactions at BNL-RHIC energy. For these processes, the spin correlation asymmetry ALL between the target proton and the produced charmed hadron, and its statistical sensitivity δALL are calculated as functions of tran...
متن کاملCharmed Hadron Production in Polarized pp Collisions†
To extract information about polarized gluons in the proton, production of charmed hadrons, in particular, Λc baryon in pp collisions was studied. We calculated the transverse momentum distribution and the pseudo-rapidity distribution of the spin correlation asymmetry ALL between the initial proton and the produced Λc . Those statistical sensitivities were also calculated under the condition of...
متن کاملEvidence for Color Transparency and Direct Hadron Production at RHIC
The QCD color transparency of higher-twist contributions to the inclusive hadroproduction cross section, where the trigger proton is produced directly in a short-distance subprocess, can explain several remarkable features of high-pT proton production in heavy ion collisions which have recently been observed at RHIC: (a) the anomalous increase of the p → π ratio with centrality (b): the more ra...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2003
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x03014952