About: Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Zpráva o měření inkluzivních fotonů v střední rapiditě z Au+Au srážek při energii 130 GeV na RHIC. Konverze fotonových párů jsou rekonsturovány z elektronových a pozitronových stop měřených pomocí TPC v experimentu STAR. Touto metodou bylo dosaženo energetického rozlišení 2% při energii 0,5 GeV. (cs) We report inclusive photon measurements about midrapidity (/y/<0.5) from Au-197+Au-197 collisions at roots(NN)=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of DeltaE/Eapproximate to2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (p(t)) spectra of pi(0) mesons about midrapidity (/y/<1) via the pi(0)-->gammagamma decay channel. The fractional contribution of the pi(0)-->gammagamma decay to the inclusive photon spectrum decreases by 20%+/-5% between p(t)=1.65 GeV/c and p(t)=2.4 GeV/c in the most central events, indicating that relative to pi(0)-->gammagamma decay the contribution of other photon sources is substantially increasing. We report inclusive photon measurements about midrapidity (/y/<0.5) from Au-197+Au-197 collisions at roots(NN)=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of DeltaE/Eapproximate to2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (p(t)) spectra of pi(0) mesons about midrapidity (/y/<1) via the pi(0)-->gammagamma decay channel. The fractional contribution of the pi(0)-->gammagamma decay to the inclusive photon spectrum decreases by 20%+/-5% between p(t)=1.65 GeV/c and p(t)=2.4 GeV/c in the most central events, indicating that relative to pi(0)-->gammagamma decay the contribution of other photon sources is substantially increasing. (en)
Title	Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV (en) Produkce fotonů a neutrálních pionů v srážkách Au+Au při energii 130 GeV (cs)
skos:prefLabel	Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV Photon and neutral pion production in Au plus Au collisions at root s(NN)=130 GeV (en) Produkce fotonů a neutrálních pionů v srážkách Au+Au při energii 130 GeV (cs)
skos:notation	RIV/61389005:_____/04:00110189!RIV/2005/MSM/A49005/N
http://linked.open.../vavai/riv/strany	044902
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(ME 475), Z(AV0Z1048901)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2005
http://linked.open...aciTvurceVysledku	Šumbera, Michal Zborovský, Imrich Chaloupka, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav jaderné fyziky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	579432
http://linked.open...ai/riv/idVysledku	RIV/61389005:_____/04:00110189
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	heavy-ion collisions; quark-gluon plasma; star (en)
http://linked.open.../riv/klicoveSlovo	heavy-ion collisions quark-gluon plasma star
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0BF87558FFAB]
http://linked.open...i/riv/nazevZdroje	Physical Review
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...vavai/riv/projekt	http://linked.opendata.cz/resource/domain/vavai/projekt/ME%20475
http://linked.open...UplatneniVysledku	2004
http://linked.open...v/svazekPeriodika	70
http://linked.open...iv/tvurceVysledku	Šumbera, Michal Aggarwal, M. M. Chaloupka, Petr Zborovský, Imrich Lednický, Richard Filip, Pavel Adler, C. Adams, J.
http://linked.open...n/vavai/riv/zamer	Theoretical and experimental investigation of atomic nuclei and exploitation of nuclear methods in interdisciplinary research
issn	0556-2813
number of pages	1 (xsd:int)

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