A very light dilaton

被引:38
|
作者
Grinstein, Benjamin [1 ]
Uttayarat, Patipan [1 ]
机构
[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
来源
关键词
Spontaneous Symmetry Breaking; Space-Time Symmetries; RENORMALIZATION-GROUP EQUATIONS; QUANTUM-FIELD THEORY; ENERGY-MOMENTUM-TENSOR; GAUGE-THEORIES; SYMMETRY-BREAKING; PHENOMENOLOGICAL LAGRANGIANS; PHASE-STRUCTURE; COUPLINGS; MODEL;
D O I
10.1007/JHEP07(2011)038
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
We present a completely perturbative model that displays behavior similar to that of walking technicolor. In one phase of the model RG-trajectories run towards an IR-fixed point but approximate scale invariance is spontaneously broken before reaching the fixed point. The trajectories then run away from it and a light dilaton appears in the spectrum. The mass of the dilaton is controlled by the "distance" of the theory to the critical surface, and can be adjusted to be arbitrarily small without turning off the interactions. There is a second phase with no spontaneous symmetry breaking and hence no dilaton, and in which RG trajectories do terminate at the IR-fixed point.
引用
收藏
页数:23
相关论文
共 50 条
  • [1] A very light dilaton
    Benjamín Grinstein
    Patipan Uttayarat
    [J]. Journal of High Energy Physics, 2011
  • [2] Very light dilaton and naturally light Higgs boson
    Hong, Deog Ki
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2018, (02):
  • [3] Very light dilaton and naturally light Higgs boson
    Deog Ki Hong
    [J]. Journal of High Energy Physics, 2018
  • [4] A naturally light dilaton
    Francesco Coradeschi
    Paolo Lodone
    Duccio Pappadopulo
    Riccardo Rattazzi
    Lorenzo Vitale
    [J]. Journal of High Energy Physics, 2013
  • [5] A naturally light dilaton
    Coradeschi, Francesco
    Lodone, Paolo
    Pappadopulo, Duccio
    Rattazzi, Riccardo
    Vitale, Lorenzo
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2013, (11):
  • [6] A light dilaton at the LHC
    Ahmed, Aqeel
    Mariotti, Alberto
    Najjari, Saereh
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2020, 2020 (05)
  • [7] A light dilaton at the LHC
    Aqeel Ahmed
    Alberto Mariotti
    Saereh Najjari
    [J]. Journal of High Energy Physics, 2020
  • [8] Effective theory of a light dilaton
    Chacko, Zackaria
    Mishra, Rashmish K.
    [J]. PHYSICAL REVIEW D, 2013, 87 (11)
  • [9] Cosmological implications of a light dilaton
    Dick, R
    Gaul, M
    [J]. COSMO-97: FIRST INTERNATIONAL WORKSHOP ON PARTICLE PHYSICS AND THE EARLY UNIVERSE, 1998, : 529 - 534
  • [10] Phenomenology of a light scalar: The dilaton
    Vecchi, Luca
    [J]. PHYSICAL REVIEW D, 2010, 82 (07):