QCD power corrections from a simple model for the running coupling

被引：0
|
作者：
Webber, BR [1 ]
机构：
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 1998年 / 10期
关键词：
QCD; phenomenological models; nonperturbative effects;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
A simple parametrization of the QCD running coupling at low scales is introduced and used to illustrate various schemes for the estimation of non-perturbative power corrections. The `infrared matching' scheme proposed earlier gives satisfactory results when combined with next-to-leading (or higher) order perturbative predictions. Estimates based on renormalons are shown to be inconsistent with universal behaviour of the running coupling.
引用
收藏
页数：14
相关论文
共 50 条
  • [21] The temperature dependence of the QCD running coupling
    Steffens, F. M.
    BRAZILIAN JOURNAL OF PHYSICS, 2006, 36 (2B) : 582 - 585
  • [22] The running coupling of QCD with four flavors
    Tekin, Fatih
    Sommer, Rainer
    Wolff, Ulli
    NUCLEAR PHYSICS B, 2010, 840 (1-2) : 114 - 128
  • [23] Properties of quark matter in a new quasiparticle model with QCD running coupling
    Zhen Yan Lu
    Guang Xiong Peng
    Jian Feng Xu
    Shi Peng Zhang
    Science China(Physics,Mechanics & Astronomy), 2016, (06) : 42 - 50
  • [24] Properties of quark matter in a new quasiparticle model with QCD running coupling
    Lu, ZhenYan
    Peng, GuangXiong
    Xu, JianFeng
    Zhang, ShiPeng
    SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2016, 59 (06)
  • [25] THE EFFECTIVE QCD RUNNING COUPLING CONSTANT AND A DIRAC MODEL FOR THE CHARMONIUM SPECTRUM
    De Sanctis, M.
    ACTA PHYSICA POLONICA B, 2023, 54 (10):
  • [26] Properties of quark matter in a new quasiparticle model with QCD running coupling
    ZhenYan Lu
    GuangXiong Peng
    JianFeng Xu
    ShiPeng Zhang
    Science China Physics, Mechanics & Astronomy, 2016, 59
  • [27] QCD CORRECTIONS TO THE HZ-GAMMA COUPLING
    SPIRA, M
    DJOUADI, A
    ZERWAS, PM
    PHYSICS LETTERS B, 1992, 276 (03) : 350 - 353
  • [28] Jet production from the perturbative QCD pomeron with a running coupling constant
    Braun, M
    Vacca, GP
    PHYSICS LETTERS B, 1997, 406 (1-2) : 137 - 148
  • [29] ELASTIC AMPLITUDES AND POWER CORRECTIONS IN QCD
    BOTTS, J
    QIU, J
    STERMAN, G
    NUCLEAR PHYSICS A, 1991, 527 : C577 - C580
  • [30] Power corrections to exclusive processes in QCD
    Mankiewicz, L
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2002, 105 : 126 - 129
12345