Author:
Hamada Yuta,Kawai Hikaru,Kawana Kiyoharu,Oda Kin-ya,Yagyu Kei
Abstract
AbstractThe multicritical-point principle (MPP) provides a natural explanation of the large hierarchy between the Planck and electroweak scales. We consider a scenario in which MPP is applied to the Standard Model extended by two real singlet scalar fields $$\phi $$
ϕ
and S, and a dimensional transmutation occurs by the vacuum expectation value of $$\phi $$
ϕ
. In this paper, we focus on the critical points that possess a $${\mathbb {Z}}_2$$
Z
2
symmetry $$S\rightarrow -S$$
S
→
-
S
and all the other fields are left invariant. Then S becomes a natural dark matter (DM) candidate. Further, we concentrate on the critical points where $$\phi $$
ϕ
does not possess further $${\mathbb {Z}}_2$$
Z
2
symmetry so that there is no cosmological domain-wall problem. Among such critical points, we focus on maximally critical one called CP-1234 that fix all the superrenormalizable parameters. We show that there remains a parameter region that satisfies the DM relic abundance, DM direct-detection bound and the current LHC constraints. In this region, we find a first-order phase transition in the early universe around the TeV-scale temperature. The resultant gravitational waves are predicted with a peak amplitude of $${{\mathcal {O}}}(10^{-12})$$
O
(
10
-
12
)
at a frequency of $$10^{-2}{-}10^{-1}$$
10
-
2
-
10
-
1
Hz, which can be tested with future space-based instruments such as DECIGO and BBO.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference76 articles.
1. LIGO Scientific, Virgo Collaboration, B.P. Abbott et al., Observation of gravitational waves from a binary black hole merger. Phys. Rev. Lett. 116(6), 061102 (2016). https://doi.org/10.1103/PhysRevLett.116.061102. arXiv:1602.03837 [gr-qc]
2. LIGO Scientific, Virgo Collaboration, B.P. Abbott et al., GW170817: observation of gravitational waves from a binary neutron star inspiral. Phys. Rev. Lett. 119(16), 161101 (2017). https://doi.org/10.1103/PhysRevLett.119.161101. arXiv:1710.05832 [gr-qc]
3. LIGO Scientific, Virgo Collaboration, B.P. Abbott et al., GWTC-1: a gravitational-wave transient catalog of compact binary mergers observed by LIGO and Virgo during the first and second observing runs. Phys. Rev. X 9(3), 031040 (2019). https://doi.org/10.1103/PhysRevX.9.031040. arXiv:1811.12907 [astro-ph.HE]
4. LIGO Scientific, VIRGO, KAGRA Collaboration, R. Abbott et al., Tests of general relativity with Gwtc-3. arXiv:2112.06861 [gr-qc]
5. LIGO Scientific, VIRGO, KAGRA Collaboration, R. Abbott et al., All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in Ligo O3 Data. arXiv:2111.15507 [astro-ph.HE]
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献