论文标题
在喷气式飞机中生产奇怪的哈德子，以及与爱丽丝的PP和P-PB碰撞中的基础事件
Production of strange hadrons in jets and underlying events in pp and p-Pb collisions with ALICE
论文作者
论文摘要
在\ pp和\ ppb碰撞中，在LHC的LHC研究了奇怪的〜（$ k^0_s $，$λ$）和Multi-Trange〜（$ξ$和$ω$）的HADRON和\ PP和PPB碰撞的基础事件。将横向动量（$ p_ \ rm {t} $）与射流中产生的粒子的差分密度分布与包容性颗粒产生和基础事件的差异分布进行了比较。 $λ/k^0_s $和$ξ/λ$作为$ p_ \ rm {t} $的函数的粒子产量比也在喷气式飞机和基础事件中进行了研究。多态哈德子，$ξ$和$ω$的产生，以及在Jets和基本事件中的相应比例，用于第一次测量的Jets和基础事件。 $ p_ \ rm {t} $ - 与硬散射相关的哈子的差分密度分布降低的降低的降低了，而与包容性生产相比。在喷气机中测得的重烯与 - 膜和巴里昂 - 巴里昂比率表现出与从中间$ p_ \ rm {t} $范围中从包含光谱获得的值的明显差异。还研究了$ p_ \ rm {t} $在$ \ sqrt {s} $ = 13 tev和7 tev和p-pb碰撞中，$ \ sqrt {s_ \ rm {nn}} $ = 5.02 $ = 5.02 tev。 $ p_ \ rm {t} $喷气机产生的粒子光谱与碰撞系统和碰撞能量无关。没有明显的碰撞能量和碰撞系统依赖性依赖于$λ/k^0_s $ and $λ/k^0_s $和$ξ/λ$的粒子产量比。将这些新结果与Pythia 8事件发生器进行比较。 $λ/k^0_s $比率通常由模型复制，但是对于$ξ/λ$，数据和pythia模拟之间的较大差异。
The production of strange~($K^0_S$, $Λ$) and multi-strange~($Ξ$ and $Ω$) hadrons in jets and underlying events in \pp and \pPb collisions is studied with ALICE at the LHC. Transverse momentum ($p_\rm{T}$) differential density distribution of particles produced in a jet is compared to that of inclusive particle production and that in underlying events. The particle yield ratios of $Λ/K^0_S$ and $Ξ/Λ$ as a function of $p_\rm{T}$ are also investigated in jets and underlying events.The production of the multi-strange hadrons, $Ξ$ and $Ω$, and the corresponding ratio in jets and underlying events are measured for the first time. The $p_\rm{T}$-differential density distribution of hadrons associated with hard scattering decreases slower than that for inclusive production. The baryon-to-meson and baryon-to-baryon ratios measured in jets exhibit clear differences from values obtained from the inclusive spectra in the intermediate $p_\rm{T}$ range. The $p_\rm{T}$ distribution of strange hadrons produced in jets is also studied in pp collisions at $\sqrt{s}$ = 13 TeV and 7 TeV and in p-Pb collisions at $\sqrt{s_\rm{NN}}$ = 5.02 TeV. The $p_\rm{T}$ spectra of particle produced in jets are independent of collision systems and collision energies.No apparent collision energy and collision system dependence is observed for the particle yield ratios of $Λ/K^0_S$ and $Ξ/Λ$ associated with energetic jets. These new results are compared to PYTHIA 8 event generator. The $Λ/K^0_S$ ratio are generally reproduced by the model, but large discrepancies between data and PYTHIA simulations are observed for $Ξ/Λ$.
