About: Proton-Λ correlations in central Au+Au collisions at (sNN)=200 GeV     Goto   Sponge   NotDistinct   Permalink

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Description
  • Představujeme měření korelačních funkcí proton-Lambda, proton-antiLambda, antiproton-Lambda a antiproton-antiLambda provedené experimentem STAR na RHIC v centrálních srážkách Au-Au při (sNN)=200GeV. Velikost zdroje protonů a Lambda částic byla získána z korelačních funkcí proton-Lambda a antiproton-antiLambda. Změřená velikost je menší než velikost pionového zdroje změřeného taktéž experimentem STAR. Toto pozorování může být důsledkem kolektivní expanze systému. Korelační funkce pro Proton-antiLambda a antiproton-Lambda byly změřeny poprvé a vykazují silnou antikorelaci. Aby bylo možné zreprodukovat daný výsledek, je nutné při interakci ve finálním stavu uvažovat anihilační kanály a/nebo negativní hodnotou reálné části spinově průměrované rozptylové délky. (cs)
  • We report on p-Lambda, p-Lambda bar, p bar-Lambda and p bar-Lambda bar correlation functions constructed in central Au-Au collisions at (sNN)=200GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-Lambda and p bar-Lambda bar correlation functions. They are found to be smaller than the pion source size also measured by the STAR detector. This could be a consequence of the collision fireball's collective expansion. The p-Lambda bar and p bar-Lambda correlations, which are measured for the first time, exhibit a large anti-correlation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.
  • We report on p-Lambda, p-Lambda bar, p bar-Lambda and p bar-Lambda bar correlation functions constructed in central Au-Au collisions at (sNN)=200GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-Lambda and p bar-Lambda bar correlation functions. They are found to be smaller than the pion source size also measured by the STAR detector. This could be a consequence of the collision fireball's collective expansion. The p-Lambda bar and p bar-Lambda correlations, which are measured for the first time, exhibit a large anti-correlation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function. (en)
Title
  • Proton-Λ correlations in central Au+Au collisions at (sNN)=200 GeV
  • Au+Au Proton-Λ korelace v centrálních srážkách (sNN)=200 GeV] (cs)
  • Proton-Λ correlations in central Au+Au collisions at (sNN)=200 GeV (en)
skos:prefLabel
  • Proton-Λ correlations in central Au+Au collisions at (sNN)=200 GeV
  • Au+Au Proton-Λ korelace v centrálních srážkách (sNN)=200 GeV] (cs)
  • Proton-Λ correlations in central Au+Au collisions at (sNN)=200 GeV (en)
skos:notation
  • RIV/61389005:_____/06:00096486!RIV08-AV0-61389005
http://linked.open.../vavai/riv/strany
  • 064906;064906
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA202/04/0793), Z(AV0Z10480505)
http://linked.open...iv/cisloPeriodika
  • 6
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 495740
http://linked.open...ai/riv/idVysledku
  • RIV/61389005:_____/06:00096486
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • RHIC (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [F7CB44FD8DE9]
http://linked.open...i/riv/nazevZdroje
  • Physical Review. C
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 74
http://linked.open...iv/tvurceVysledku
  • Bielčík, J.
  • Chaloupka, Petr
  • Bielčíková, J.
  • Bysterský, Michal
  • Adams, J.
http://linked.open...n/vavai/riv/zamer
issn
  • 0556-2813
number of pages
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