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arXiv 0911.4698hep-ph
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么正化pomeron模型中的包含分布

Inclusive distributions in the unitarized pomeron models

A. Alkin, E. Martynov, V. Pauk, E. Romanets

摘要:

在么正化坡密子模型下分析了中心运动学区的高能包容强子产生。结果表明,与拦截$α_P(0)>1$的多坡密子交换的总和再现定性的三极(在$t=0$)坡密子的贡献,包括截面。基于这个类比,我们提出了一种统一的坡密子贡献的一般形式(特别是偶极或三极坡密子)的包容截面。它们导致快度分布的抛物线形式,给出$<n>\propto \ln^3s$(三极)或$<n>\propto \ln^2s$(偶极子)。所考虑的模型与建议的参数化的$p_t$ -依赖的截面很好地描述了在能量$\sqrt{s}\geq 200$ GeV的$pp$和$\bar pp$相互作用的快度分布数据。给出了LHC能区单粒子产生的预言。

英文摘要:

High energy inclusive hadron production in the central kinematical region is analyzed within the models of unitarized pomeron. It is shown that the sum of multipomeron exchanges with intercept $α_P(0)>1$ reproduce qualitatively contribution of the triple pole (at $t=0$) pomeron to inclusive cross section. Basing on this analogy we then suggest a general form of unitarized pomeron contributions (in particular the dipole or tripole pomeron) to inclusive cross section. They lead to a parabolic form of the rapidity distribution giving $<n>\propto \ln^3s$ (tripole) or $<n>\propto \ln^2s$ (dipole). The models considered with suggested parametrization of $p_t$-dependence for cross sections well describe the rapidity distributions data in $pp$ and $\bar pp$ interactions at energy $\sqrt{s}\geq 200$ GeV. The predictions for one particle inclusive production at LHC energies are given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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