论文标题
$π^\ pm $，$ k^\ pm $，$ p $和$ \ bar {p} $ spectra的尺寸
Measurements of $π^\pm$, $K^\pm$, $p$ and $\bar{p}$ spectra in $^7$Be+$^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS
论文作者
论文摘要
CERN超级质子同步加速器（SPS）的Na61/Shine实验通过在核心碰撞中扫描粒子碰撞中的粒子产生，在一组覆盖SPS能量范围的能量的粒子中，通过粒子产生的粒子产生扫描。 This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $π^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in the 20$\%$ most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150 $ a $ gev/$ c $。 $ k^\ pm $/$π^\ pm $比率以及$ k^\ pm $横向质量分布的反向斜率参数的能量依赖性与非弹性$ p $+$ p $ p $ eactions中的能量依赖性。将新的结果与世界上有关$ P $+$ P $和PB+PB碰撞的数据进行了比较，以及EPOS，URQMD，AMPT，PHSD和SMASH模型的预测。
The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $π^\pm$, $K^\pm$, $p$ and $\bar{p}$ produced in the 20$\%$ most $central$ $^7$Be+$^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. The energy dependence of the $K^\pm$/$π^\pm$ ratios as well as of inverse slope parameters of the $K^\pm$ transverse mass distributions are close to those found in inelastic $p$+$p$ reactions. The new results are compared to the world data on $p$+$p$ and Pb+Pb collisions as well as to predictions of the EPOS, UrQMD, AMPT, PHSD and SMASH models.
