We present the published data of ALICE at mid-rapidity region (|y| < 0.5) to study the pT spectra of light-flavor hadrons in different charged-particle multiplicities (dNch dη) for p + p collisions at s = 7 TeV. We parametrize the pT spectra of different hadrons such as pion (π+ + π−), kaon (K+ + K−), KS0, K∗0 (K∗0 + K∗0̄), ϕ, proton (p + p̄), lambda (Λ + Λ̄), cascade (Ξ− + Ξ̄+) and omega (Ω− + Ω̄+) using Tsallis distribution. We perform this analysis by considering both differential and single freeze-out scenarios. In the differential freeze-out scenario, both the Tsallis parameters n and T increase with charged multiplicities for most of the particles. This implies that the multipartonic interactions increase the multiplicities in p + p collisions and it brings the system towards thermal equilibrium. Here we observe that both n and T have different trends with different masses of particles. The parameters n and T are higher for massive particles (except for multistrange baryons) in comparison to lighter ones, which supports the differential freeze-out scenario and suggests that massive particles freeze-out earlier from the system. In the case of single freeze-out scenario, the value of parameter n has a little variation with multiplicity and the parameter T increases with multiplicity. This implies that the degree of thermalization remains similar for the events of different multiplicity classes.

中文翻译：

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差分和单一冻结情景下 s = 7 TeV 的 p + p 碰撞中轻味强子 pT 谱的理论分析

我们展示了 ALICE 在中速区的公布数据（|是的| < 0.5) 研究p吨不同带电粒子数中轻味强子的光谱 (dñch dη） 为了p + p碰撞在s = 7TeV。我们参数化p吨不同强子的光谱，例如π介子（π+ + π-), 卡翁 (ķ+ + ķ-),ķ小号0,ķ*0(ķ*0 + ķ*0̄),φ, 质子 (p + p̄), 拉姆达 (Λ + Λ̄), 级联 (Ξ- + Ξ̄+) 和欧米茄 (Ω- + Ω̄+) 使用 Tsallis 分布。我们通过考虑差异和单一冻结情况来执行此分析。在差分冻结情景中，Tsallis 参数n和吨大多数粒子的带电复数增加。这意味着多部分相互作用增加了多重性p + p碰撞，它使系统达到热平衡。在这里我们观察到两者n和吨不同的粒子质量有不同的趋势。参数n和吨与较轻的粒子相比，大质量粒子（除了多奇异重子）更高，这支持差异冻结情景并表明大质量粒子更早从系统中冻结出来。在单一冻结场景的情况下，参数的值n与多重性和参数有一点变化吨随着多样性的增加。这意味着对于不同多重性类别的事件，热化程度保持相似。