论文标题
来自BES的奇怪黑龙的生产产量和方位角各向异性测量
Production yield and azimuthal anisotropy measurements of strange hadrons from BES at STAR
论文作者
论文摘要
我们报告了Star Bes Energies的奇怪和多震颤Hadron的生产和方位角各向异性测量。 $λ/k^0_s $比率在3 GEV处报告，并观察到横向动量的增加速度比在较高能量下的横向动量更快。 $ v_2 $的constituent Quark（NCQ）缩放数已在19.6 GEV（BES-II）中进行了研究。 NCQ缩放适用于颗粒和抗粒子，这可以被视为党集体的证据。还报告了7.7-39 GEV（BES-I）的$ K^{*0} $共振的产生，而$ k^{*0}/k $比率表明，在中央A+A碰撞中，HADRONES重新散落在重新碰撞中占主导地位。使用$ k^{*0}/k $比率，我们还报告了hadronic阶段寿命$（t_ {kin} -t_ {chem}）$的下限。
We report the production and azimuthal anisotropy measurements of strange and multi-strange hadrons at STAR BES energies. The $Λ/K^0_s$ ratio is reported at 3 GeV and observed to increase faster with transverse momentum than that at higher energies. The number-of-constituent quark (NCQ) scaling of $v_2$ has been studied at 19.6 GeV (BES-II). The NCQ scaling holds for particles and anti-particles, which can be considered as an evidence of partonic collectivity. The production of $K^{*0}$ resonance is also reported for 7.7-39 GeV (BES-I) and the $K^{*0}/K$ ratio suggests that hadronic re-scattering dominates over regeneration in central A+A collisions. Using the $K^{*0}/K$ ratio, we also report the lower limit of hadronic phase lifetime $( t_{kin} - t_{chem} )$.
