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Non-extensive statistical mechanics and particle spectra in elementary interactions

机译:基本相互作用中的非广义统计力学和粒子光谱

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摘要

We generalize Hagedorn's statistical theory of momentum spectra of particles produced in high-energy collisions using Tsallis' formalism of non-extensive statistical mechanics. Suitable non-extensive grand canonical partition functions are introduced for both fermions and bosons. Average occupation numbers and moments of transverse momenta are evaluated in an analytic way. We analyse the energy dependence of the non-extensitivity parameter q as well as the q-dependence of the Hagedorn temperature. We also take into account the multiplicity. As a final result we obtain formulas for differential cross sections that are in very good agreement with e(+)e(-) annihilation experiments. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 34]
机译:我们使用Tsallis的非广义统计力学形式主义,归纳了Hagedorn的高能碰撞产生的粒子动量谱的统计理论。引入了适用于费米子和玻色子的适当的非扩展大正则分配函数。平均职业人数和横向动量矩以分析的方式进行评估。我们分析了非扩展性参数q的能量依赖性以及Hagedorn温度的q依赖性。我们还考虑了多样性。作为最终结果,我们获得了与e(+)e(-)ni灭实验非常吻合的微分截面公式。 (C)2000 Elsevier Science B.V.保留所有权利。 [参考:34]

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