Gluon shadowing and hadron production at RHIC
نویسندگان
چکیده
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...
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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...
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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...
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متن کاملThe Gluon Sivers Distribution in D Production at Rhic
The single transverse spin asymmetry in D meson production at RHIC can provide a clean measure of the gluon Sivers distribution function. At intermediate rapidity, D production is largely dominated by the elementary gg → cc̄ channel, where there cannot be any transverse spin transfer. Therefore, any transverse single spin asymmetry observed for D’s produced in pp interactions can only originate ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2002
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(02)01179-6