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首页> 外文期刊>Physical Review C >Double nonperturbative gluon exchange: An update on the soft-Pomeron contribution to pp scattering
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Double nonperturbative gluon exchange: An update on the soft-Pomeron contribution to pp scattering

机译：双重非触发性胶合交换：对PP散射贡献的更新

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摘要

We employ a set of recent, theoretically motivated fits to nonperturbative unquenched gluon propagators to check on how far double gluon exchange can be used to describe the soft sector of pp scattering data (total and differential cross section). In particular, we use the refined Gribov-Zwanziger gluon propagator (as arising from dealing with the Gribov gauge fixing ambiguity) and the massive Cornwall-type gluon propagator (as motivated from Dyson-Schwinger equations) in conjunction with a perturbative quark-gluon vertex, next to a model based on the nonperturbative quark-gluon Maris-Tandy vertex, popular from Bethe-Salpeter descriptions of hadronic bound states. We compare the cross sections arising from these models with older ISR and more recent TOTEM and ATLAS data. The lower the value of total energy s~(1/2), the better the results appear to be.
机译：我们借鉴了一系列理论上的拟合，对非触发的未受干扰的胶原传播者来检查双玻璃交换的光学散射数据（总和差分截面）的软扇区多远。特别是，我们使用精制的Gribov-Zwanziger Gluon传播者（以Grabov Gauge固定模糊的含糊不清）和康沃尔型胶合型胶合作用（从Dyson-Schwinger方程式的激励）结合扰动夸克 - 胶原顶点，旁边是一个基于非威胁Quark-Gluon Maris-Tandy顶点的模型，热门来自贝特 - 排名统治状态的贝特 - Salpeter描述。我们将这些模型中产生的横截面与较旧的ISR和最近的图书馆和地图集数据进行比较。总能量S〜（1/2）的值越低，结果似乎越好。

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  • 来源
    《Physical Review C》 |2017年第2017期|025202.1-025202.8|共8页
  • 作者

    F. E. Canfora; D. Dudal; I. F. Justo; P. Pais; P. Salgado-Rebolledo; L. Rosa; D. Vercauteren;

  • 作者单位

    Centro de Estudios Cientificos (CECS) Casilla 1469 Valdivia Chile;

    KU Leuven Kulak Department of Physics Etienne Sabbelaan 53 bus 7657 8500 Kortrijk Belgium Ghent University Department of Physics and Astronomy Krijgslaan 281-S9 9000 Gent Belgium;

    UFES - Universidade Federal do Espirito Santo Departamento de Quimica e Fisica Centro de Ciencias Exatas Naturais e da Saude Alto Universitario s 29500-000 Guararema Alegre ES Brazil;

    Centro de Estudios Cientificos (CECS) Casilla 1469 Valdivia Chile Physique Theorique et Mathematique Universite Libre de Bruxelles and International Solvay Institutes Campus Plaine C. P. 231 B-1050 Bruxelles Belgium;

    Facultad de Ingenieria y Ciencias and UAI Physics Center Universidad Adolfo Ibanez Avda. Diagonal las Torres 2640 Penalolen Santiago Chile;

    Dipartimento di Fisica Universita di Napoli Federico II Complesso Universitario di Monte S. Angelo Via Cintia Edificio 6 80126 Napoli Italy INFN Sezione di Napoli Complesso Universitario di Monte S. Angelo Via Cintia Edificio 6 80126 Napoli Italy;

    Duy Tan University Institute of Research and Development P809 3 Quang Trung Hai Chau Đa N˜ang Vietnam;

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