论文标题
Baryon规范合奏中PP和PA碰撞中的光核产生
Light nuclei production in pp and pA collisions in the Baryon Canonical Ensemble
论文作者
论文摘要
如爱丽丝在p-p和p-pb碰撞中，在LHC能量的p-p-pb碰撞中，光核与带电粒子多样性的产量增加了。该模型被扩展到确切的Baryon编号保护。重点是质子，杜特隆，$^3 $ HE和$^3_λ$ H的生产。使用与中央PB-PB碰撞中相同的固定温度，可以很好地描述质子和Deuteron屈服，这是在中高度区域中带电粒子多重性的函数。光核的产量$^3 $ He和$^3_λ$ H尽管定性地解释为多重性，但低于模型期望。可能的原因之一可能是，对于$^{3} $ HE和$^{3}_λ$ H，尚未以小的多种形式达到化学平衡。
The increase in yields of light nuclei with charged particle multiplicity, as reported by the ALICE collaboration at CERN in p-p and p-Pb collisions at the LHC energy is investigated in the thermal hadron resonance gas model. The model is extended to account for exact baryon number conservation. The focus is on the production of protons, deuterons, $^3$He, and $^3_Λ$H. A very good description of proton and deuteron yields is obtained as a function of charged particle multiplicity in the mid-rapidity region using the same fixed temperature as in central Pb-Pb collisions. The yields of light nuclei $^3$He and $^3_Λ$H though qualitatively explained as a function of multiplicity, are lower than the model expectation. One of the possible reasons could be that for $^{3}$He and $^{3}_Λ$H, the chemical equilibrium is not yet reached at small multiplicities.
