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| Description
| - We present the first spin alignment measurements for the K*0(892) and Φ(1020) vector mesons produced at mid-rapidity with transverse momenta up to 5 GeV/c at (sNN) = 200 GeV at RHIC. The diagonal spin density matrix elements with respect to the reaction plane in Au+Au collisions are ρ00 = 0.32 +/- 0.04 (stat) +/- 0.09 (syst) for the K*0 (0.8<pT<5.0 GeV/c) and ρ00 = 0.34 +/- 0.02 (stat) +/- 0.03 (syst) for the Φ (0.4<pT<5.0 GeV/c), and are constant with transverse momentum and collision centrality. The data are consistent with the unpolarized expectation of 1/3 and thus no evidence is found for the transfer of the orbital angular momentum of the colliding system to the vector meson spins. Spin alignments for K*0 and Φ in Au+Au collisions were also measured with respect to the particle's production plane. The Φ result, ρ00 = 0.41 +/- 0.02 (stat) +/- 0.04 (syst), is consistent with that in p+p collisions, ρ00 = 0.39 +/- 0.03 (stat) +/- 0.06 (syst), also measured in this work.
- We present the first spin alignment measurements for the K*0(892) and Φ(1020) vector mesons produced at mid-rapidity with transverse momenta up to 5 GeV/c at (sNN) = 200 GeV at RHIC. The diagonal spin density matrix elements with respect to the reaction plane in Au+Au collisions are ρ00 = 0.32 +/- 0.04 (stat) +/- 0.09 (syst) for the K*0 (0.8<pT<5.0 GeV/c) and ρ00 = 0.34 +/- 0.02 (stat) +/- 0.03 (syst) for the Φ (0.4<pT<5.0 GeV/c), and are constant with transverse momentum and collision centrality. The data are consistent with the unpolarized expectation of 1/3 and thus no evidence is found for the transfer of the orbital angular momentum of the colliding system to the vector meson spins. Spin alignments for K*0 and Φ in Au+Au collisions were also measured with respect to the particle's production plane. The Φ result, ρ00 = 0.41 +/- 0.02 (stat) +/- 0.04 (syst), is consistent with that in p+p collisions, ρ00 = 0.39 +/- 0.03 (stat) +/- 0.06 (syst), also measured in this work. (en)
- Představujeme první měření orientace spinu K*0(892) a Φ(1020) vektorových mezonů produkovaných v centrální oblasti rapidit s příčnými hybnostmi do 5 GeV/c při (sNN) = 200 GeV na RHIC. Diagonální elementy matice hustoty spinu vzhledem k reakční rovině ve srážkách Au+Au jsou ρ00 = 0.32 +/- 0.04 (stat) +/- 0.09 (syst) pro K*0 (0.8<pT<5.0 GeV/c) a ρ00 = 0.34 +/- 0.02 (stat) +/- 0.03 (syst) pro Φ (0.4<pT<5.0 GeV/c) a jsou konstantní s příční hybností a s centralitou srážky. Data jsou v souladu s nepolarizovanou očekávanou hodnotou 1/3 a nebyl tak prokázán žádný přenos orbitálního momentu hybnosti systému ve srážce na spiny vektorových mezonů. Ve srážkách Au+Au byly také změřeny orientace spinu K*0 a Φ vzhledem k produkční rovině částic. Výsledné hodnoty pro Φ, ρ00 = 0.41 +/- 0.02 (stat) +/- 0.04 (syst), jsou v souladu s hodnotami z p+p srážek, ρ00 = 0.39 +/- 0.03 (stat) +/- 0.06 (syst), které byli také změřeny v této práci. (cs)
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| Title
| - Spin alignment measurements of the K* and Φ vector meson at RHIC
- Spin alignment measurements of the K* and Φ vector meson at RHIC (en)
- Měření orientace spinu K* a Φ vektorových mezonů na RHIC (cs)
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| skos:prefLabel
| - Spin alignment measurements of the K* and Φ vector meson at RHIC
- Spin alignment measurements of the K* and Φ vector meson at RHIC (en)
- Měření orientace spinu K* a Φ vektorových mezonů na RHIC (cs)
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| skos:notation
| - RIV/61389005:_____/08:00316361!RIV09-AV0-61389005
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA202/07/0079), P(LC07048), Z(AV0Z10480505)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61389005:_____/08:00316361
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - RHIC; GeV; QUARK-GLUON PLASMA (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Bielčíková, Jana
- Šumbera, Michal
- Aggarwal, M. M.
- Ahammed, Z.
- Chaloupka, Petr
- Bielčík, Jaroslav
- Jakl, Pavel
- Kushpil, Vasily
- Bysterský, Michal
- Abelev, B. I.
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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