Does the fraction of dark matter diminish with early dark energy?

被引:6
|
作者
Wang, Hao [1 ,2 ]
Piao, Yun-Song [1 ,2 ,3 ,4 ]
机构
[1] UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China
[2] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[3] Int Ctr Theoret Phys Asia Pacific, Hangzhou, Peoples R China
[4] Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
关键词
BARYON ACOUSTIC-OSCILLATIONS; COSMOLOGICAL CONSTANT; HUBBLE CONSTANT; SAMPLE; CDM;
D O I
10.1103/PhysRevD.108.083516
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In prerecombination early dark energy (EDE) resolutions of the Hubble tension, the rise of Hubble constant value H0 is usually accompanied with the exacerbation of so-called S-8 tension. Inspired by the swampland conjecture, we investigate what if a fraction f(& lowast;) of dark matter is coupled to EDE, m(cdm)similar to exp(-c(|Delta phi ede|)/M-pl) with c similar to O(1). We perform the Markov chain Monte Carlo analysis for the relevant EDE models with PlanckCMB, BAO, Pantheon and SH0ES dataset, as well as DES-Y1 data, and find that such a fraction helps to alleviate the S-8 tension. However, though c greater than or similar to 0.1 is allowed for a very small f & lowast;, which suggests that a small fraction of dark matter has ever faded with EDE, c similar to 0 is also consistent.
引用
收藏
页数:14
相关论文
共 50 条
  • [21] Dark matter and dark energy in combinatorial quantum gravity
    Trugenberger, C. A.
    CLASSICAL AND QUANTUM GRAVITY, 2024, 41 (21)
  • [22] Vestiges of the interaction between dark energy and dark matter
    He, Jian-Hua
    Wang, Bin
    PHYSICS AND MATHEMATICS OF GRAVITATION, 2009, 1122 : 292 - 295
  • [23] A dark energy model interacting with dark matter and unparticle
    Chen, Songbai
    Jing, Jiliang
    CLASSICAL AND QUANTUM GRAVITY, 2009, 26 (15)
  • [24] New parametrization for unified dark matter and dark energy
    Davari, Zahra
    Malekjani, Mohammad
    Artymowski, Michal
    PHYSICAL REVIEW D, 2018, 97 (12)
  • [25] Constraints on Metastable Dark Energy Decaying into Dark Matter
    de Souza, Jonathas S. T.
    Vicente, Gustavo S.
    Graef, Leila L.
    UNIVERSE, 2024, 10 (09)
  • [26] Sourcing dark matter and dark energy from α-attractors
    Mishra, Swagat S.
    Sahni, Varun
    Shtanov, Yuri
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2017, (06):
  • [27] Understanding the interaction between dark energy and dark matter
    Wang Bin
    HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2007, 31 (09): : 874 - 879
  • [28] Observational constraints on dark matter-dark energy scattering cross section
    Kumar, Suresh
    Nunes, Rafael C.
    EUROPEAN PHYSICAL JOURNAL C, 2017, 77 (11):
  • [29] Unknowns and unknown unknowns: from dark sky to dark matter and dark energy
    Suto, Yasushi
    GROUND-BASED AND AIRBORNE TELESCOPES III, 2010, 7733
  • [30] Quantum field theory of interacting dark matter and dark energy: Dark monodromies
    D'Amico, Guido
    Hamill, Teresa
    Kaloper, Nemanja
    PHYSICAL REVIEW D, 2016, 94 (10)