All one-loop scalar vertices in the effective potential approach

被引：26

作者：

Camargo-Molina, Jose Eliel ^{[1
]}

Morais, Antonio P. ^{[1
,2
,3
]}

Pasechnik, Roman ^{[1
]}

Sampaio, Marco O. P. ^{[2
,3
]}

Wessen, Jonas ^{[1
]}

机构：

[1] Lund Univ, Dept Astron & Theoret Phys, SE-22362 Lund, Sweden

[2] Univ Aveiro, Dept Fis, Campus Santiago, P-3810183 Aveiro, Portugal

[3] CIDMA, Campus Santiago, P-3810183 Aveiro, Portugal

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 08期

基金：

瑞典研究理事会;

关键词：

Beyond Standard Model; Higgs Physics; Spontaneous Symmetry Breaking; INFLATIONARY UNIVERSE; RADIATIVE-CORRECTIONS; FLATNESS; HORIZON;

D O I：

10.1007/JHEP08(2016)073

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：

Using the one-loop Coleman-Weinberg effective potential, we derive a general analytic expression for all the derivatives of the effective potential with respect to any number of classical scalar fields. The result is valid for a renormalisable theory in four dimensions with any number of scalars, fermions or gauge bosons. This result corresponds to the zero-external momentum contribution to a general one-loop diagram with N scalar external legs. We illustrate the use of the general result in two simple scalar singlet extensions of the Standard Model, to obtain the dominant contributions to the triple couplings of light scalar particles under the zero external momentum approximation.

引用

页数：27

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