Incompatibility of gravity theories with auxiliary fields with the standard model
Incompatibility of gravity theories with auxiliary fields with the standard model
复制标题
带有辅助场的重力理论与标准模型的不兼容性
DOI:
10.1103/physrevd.109.044002
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发表时间:
2024
影响因子:
5
通讯作者:
Ventagli G
中科院分区:
文献类型:
--
作者:
Ventagli G
Theories of gravity with auxiliary fields are of particular interest since they are able to circumvent Lovelock’s theorem while avoiding the introduction of new degrees of freedom. This type of theories introduces derivatives of the stress-energy tensor in the modified Einstein equation. This peculiar structure of the field equations was shown to lead to spacetime singularities on the surface of stars. Here we focus on yet another problem afflicting gravity theories with auxiliary fields. We show that such theories can generically introduce parametrically large deviations to the Standard Model unless one severely constrains the parameters of the theory, preventing them to produce significant phenomenology at large scales. We first consider the specific case of Palatinigravity, to clarify the results previously obtained in Ref. . We show that the matter fields satisfy the Standard Model field equations which reduce to those predicted by general relativity in the local frame only at tree level, whereas at higher orders in perturbation theory they are affected by corrections that percolate from the gravity sector regardless of the specificmodel considered. Finally, we show that this is a more general issue affecting theories with auxiliary fields connected to the same terms responsible for the appearance of surface singularities.
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DOI:
10.1007/978-3-319-10070-8_1
发表时间:
2014
期刊:
Lecture Notes in Physics
影响因子:
--
作者:
T. Sotiriou
通讯作者:
T. Sotiriou
影响因子:
3.3
作者:
S. Carroll;I. Sawicki;A. Silvestri;M. Trodden
通讯作者:
M. Trodden
影响因子:
3.5
作者:
E. Barausse;T. Sotiriou;J. Miller
通讯作者:
J. Miller
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Q. Exirifard;M. Sheikh
通讯作者:
M. Sheikh
影响因子:
5.5
作者:
Christian Dioguardi;A. Racioppi
通讯作者:
A. Racioppi