Positivity constraints on interacting spin-2 fields

被引:0
|
作者
Lasma Alberte
Claudia de Rham
Arshia Momeni
Justinas Rumbutis
Andrew J. Tolley
机构
[1] Imperial College,Theoretical Physics, Blackett Laboratory
[2] Case Western Reserve University,CERCA, Department of Physics
来源
Journal of High Energy Physics | / 2020卷
关键词
Effective Field Theories; Scattering Amplitudes;
D O I
暂无
中图分类号
学科分类号
摘要
The consistency of the EFT of two interacting spin-2 fields is checked by applying forward limit positivity bounds on the scattering amplitudes to exclude the region of parameter space devoid of a standard UV completion. We focus on two classes of theories that have the highest possible EFT cutoff, namely those theories modelled on ghost-free interacting theories of a single massive spin-2 field. We find that the very existence of interactions between the spin-2 fields implies more stringent bounds on all the parameters of the EFT, even on the spin-2 self-interactions. This arises for two reasons. First, with every new field included in the low-energy EFT, comes the ‘knowledge’ of an extra pole to be subtracted, hence strengthening the positivity bounds. Second, while adding new fields increases the number of free parameters from the new interactions, this is rapidly overcome by the increased number of positivity bounds for different possible scattering processes. We also discuss how positivity bounds appear to favour relations between operators that effectively raise the cutoff of the EFT.
引用
收藏
相关论文
共 50 条
  • [41] CONSISTENT INTERACTING MASSIVE SPIN-2 REQUIRES AN INFINITY OF STATES
    DUFF, MJ
    POPE, CN
    STELLE, KS
    PHYSICS LETTERS B, 1989, 223 (3-4) : 386 - 390
  • [42] Dark matter scenarios with multiple spin-2 fields
    Albornoz, N. L. Gonzalez
    Schmidt-May, Angnis
    von Strauss, Mikael
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2018, (01):
  • [43] Interactions for Partially-Massless Spin-2 Fields
    N. Boulanger
    S. Garcia-Saenz
    L. Traina
    Physics of Particles and Nuclei Letters, 2020, 17 : 687 - 691
  • [44] Theory for multiple partially massless spin-2 fields
    Boulanger, Nicolas
    Deffayet, Cedric
    Garcia-Saenz, Sebastian
    Traina, Lucas
    PHYSICAL REVIEW D, 2019, 100 (10)
  • [45] (2+1)-dimensional interacting model of two massless spin-2 fields as a bi-gravity model
    Hoseinzadeh, S.
    Rezaei-Aghdam, A.
    PHYSICS LETTERS B, 2018, 781 : 383 - 389
  • [46] Interactions for Partially-Massless Spin-2 Fields
    Boulanger, N.
    Garcia-Saenz, S.
    Traina, L.
    PHYSICS OF PARTICLES AND NUCLEI LETTERS, 2020, 17 (05) : 687 - 691
  • [47] SOLUTION OF THE HELMHOLTZ-EQUATION FOR SPIN-2 FIELDS
    DELCASTILLO, GFT
    MARCIAL, JER
    REVISTA MEXICANA DE FISICA, 1993, 39 (01) : 32 - 46
  • [48] QUANTIZATION OF FREE SPIN-2 FIELDS ON LIGHT FRONT
    ROOT, RG
    PHYSICAL REVIEW D, 1973, 8 (10): : 3382 - 3392
  • [49] CARTAN CONTORTION AS A SYSTEM OF SPIN-2 AND SPIN-0 FIELDS
    MESZAROS, A
    GENERAL RELATIVITY AND GRAVITATION, 1990, 22 (04) : 417 - 430
  • [50] Linear spin-2 fields in most general backgrounds
    Bernard, Laura
    Deffayet, Cedric
    Schmidt-May, Angnis
    von Strauss, Mikael
    PHYSICAL REVIEW D, 2016, 93 (08)