Higgs-induced screening mechanisms in scalar-tensor theories.
Higgs-induced screening mechanisms in scalar-tensor theories.
复制标题
标量张量理论中希格斯诱导的筛选机制。
DOI:
10.1111/nyas.15092
复制
发表时间:
2023
影响因子:
5.2
通讯作者:
Burrage C
中科院分区:
文献类型:
--
作者:
Burrage C
We consider the theory of a light conformally coupled scalar field, that is, one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standard Model of particle physics with a particular combination of Higgs‐portal couplings. When the conformal coupling function contains terms that are linear and quadratic in the conformally coupled scalar, we find that the effective mass of the light propagating mode and its coupling to matter fields, obtained after expanding around a minimum of the classical potential, depend on the energy density of the background environment. This is despite the absence of nonlinear terms in the original equation of motion for the light conformally coupled field. Instead, we find that the nonlinearities of the prototype Higgs potential are communicated to the light mode. In this way, we present a novel realization of screening mechanisms, in which light degrees of freedom coupled to the Standard Model are able to avoid experimental constraints through environmental and thin‐shell effects.
登录
查看更多内容
DOI:
10.1016/j.cpc.2023.109035
发表时间:
2022-11
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
Sergio Sevillano Muñoz;E. Copeland;P. Millington;M. Spannowsky
通讯作者:
Sergio Sevillano Muñoz;E. Copeland;P. Millington;M. Spannowsky
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
Fedor Bezrukov;Georgios K. Karananas;J. Rubio;M. Shaposhnikov
通讯作者:
M. Shaposhnikov
影响因子:
4.4
作者:
T. Henz;J. M. Pawlowski;A. Rodigast;C. Wetterich
通讯作者:
C. Wetterich
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
M. Pietroni
通讯作者:
M. Pietroni
影响因子:
5
作者:
P. Brax;C. V. D. Bruck;A. Davis;D. Shaw
通讯作者:
P. Brax;C. V. D. Bruck;A. Davis;D. Shaw