Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phenomenological Gravitational Phase Transition: Early and Late
  Modifications   In this work we generalize the idea of a gravitational phase transition or
GPT at late times to allow for a modified gravity scenario in the early
universe as well. The original GPT was shown to simultaneously relax the $H_0$
and $\sigma_8$ tensions and {\it Planck} internal inconsistencies. However, the
primary results from GPT predictions implied disagreement with the data from
the baryonic acoustic oscillations (BAO). Here we investigate whether the
generalized GPT scenario could address the Hubble tension in the presence of
the BAO data as well. We find that, despite the vastly enlarged gravitational
parameter space, the BAO data strongly prefer the $\Lambda$CDM paradigm with a
low inferred Hubble constant, $68.03\pm 0.76 $ km/s/Mpc, in tension with the
local $H_0$ measurements from Riess et al., $H_0=74.03\pm 1.42$ km/s/Mpc. This
failure of the generalized GPT scenario to host the P18-BAO-R19 trio is of
significance and noticeably shrinks the space of possible gravitational
solutions to the Hubble tension.

1
The categories of this paper are: cs
18
The categories of this paper are: econ
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math