Strangeness enhancement and collective flow are considered signatures of the quark gluon plasma formation. These phenomena have been detected not only in relativistic heavy ion collisions but also in high energy, high multiplicity events of proton–proton and proton–nucleus (“small systems”) scatterings. Indeed, a universal behavior emerges by considering the parton density in the transverse plane as the dynamical quantity to specify the initial condition of the collisions. On the other hand, \(e^+e^-\) annihilation data at LEP and lower energies indicate that there is no strangeness enhancement and no flow-like effect. We show that the parton density in the transverse plane generated in \(e^+e^-\) annihilation at the available energy is too low to expect such effects. The event-by-event multiplicity where strangeness suppression and flow-like phenomenon could show up in \(e^+e^-\) is evaluated.

奇异性增强和集体流动被认为是夸克胶子等离子体形成的标志。这些现象不仅在相对论重离子碰撞中被发现，而且在质子-质子和质子-核（“小系统”）散射的高能，高多重性事件中也被发现。实际上，通过将横向平面中的分体密度视为确定碰撞初始条件的动力学量，出现了一种普遍的行为。另一方面，LEP和较低能量下的（（e ^ + e ^-\） data灭数据表明没有奇异性增强，也没有类似流的作用。我们证明了在（（e ^ + e ^-\）可用能量的hil灭作用太低，以至于无法预期到这种影响。评估了事件逐个发生的多重性，其中在（（e ^ + e ^-\））中可能出现怪异抑制和类似流动的现象。