rho(0) production and possible modification in Au+Au and p+p collisions at root S-NN=200 GeV

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00101884" target="_blank" >RIV/61389005:_____/04:00101884 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
rho(0) production and possible modification in Au+Au and p+p collisions at root S-NN=200 GeV
Original language description
We report results on rho(770)(0)-->pi(+)pi(-) production at midrapidity in p+p and peripheral Au+Au collisions at roots(NN)=200 GeV. This is the first direct measurement of rho(770)(0)-->pi(+)pi(-) in heavy-ion collisions. The measured rho(0) peak in theinvariant mass distribution is shifted by similar to40 MeV/c(2) in minimum bias p+p interactions and similar to70 MeV/c(2) in peripheral Au+Au collisions. The rho(0) mass shift is dependent on transverse momentum and multiplicity. The modification of the rho(0) meson mass, width, and shape due to phase space and dynamical effects are discussed.
Czech name
Produkce rho(0) a možná modifikace ve srážkách Au+Au a pp při energii 200 GeV
Czech description
Produkce rho ve střední rapiditě v pp a periferálních Au+Au srážkách ppři energii 200 GeV. Toto je první přímé měření rho ve srážkách těžkých iontů.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/GA202%2F04%2F0793" target="_blank" >GA202/04/0793: Study of nucleus-nucleus and proton-proton collisions at RHIC</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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