Cosmological measurement of the gravitational constant $G$ using the CMB, the BAO and the BBN

Lamine, Brahim; Ozdalkiran, Yacob; Mirouze, Louis; Erdogan, Furkan; Ilic, Stéphane; Tutusaus, Isaac; Kou, Raphael; Blanchard, Alain

Cosmological measurement of the gravitational constant $G$ using the CMB, the BAO and the BBN

Jul 22, 2024

9 pages

e-Print:

2407.15553 [astro-ph.CO]

View in:

pdf

reference search3 citations

Citations per year

Abstract: (arXiv)

Recent cosmological observations have provided numerous new observations with increasing precision that have led to the era of precision cosmology. The exquisite quality of these observations opens new possibilities towards measuring fundamental constants with good precision and at scales which are complementary to the laboratory ones. In particular, the cosmic microwave background (CMB) temperature and polarization spectra contain a wealth quantity of information, well beyond the basic cosmological parameters. In this paper, we update the precision on a cosmological determination of

G

by using the latest Planck data release (PR4) in combination with the latest baryon acoustic oscillation (BAO) from the Dark Energy Spectroscopic Instrument (DESI) data release 1 and the primordial Helium fraction from BBN. We demonstrate a precision of

1.8\%

, corresponding to a

\sim25\%

improvement compared to the literature. This measurement is compatible with laboratory ones within one standard deviation. Finally, we show that this cosmological measurement of

G

is robust against several assumptions made on the cosmological model, in particular when considering a non-standard dark energy fluid or non-flat models.

Note:

9 pages, 12 figures. Revised version

References(65)

Figures(12)

CMB-S4 Science Case, Reference Design, and Project Plan

Kevork Abazajian
(
- UC, Irvine
)
,
Graeme Addison
(
- Johns Hopkins U.
)
,
Peter Adshead
(
- Illinois U., Urbana (main)
)
,
Zeeshan Ahmed
(
- SLAC
)
,
Steven W. Allen
(
- Stanford U.
)

et al.

e-Print:
- 1907.04473

New limits on the variability of G from big bang nucleosynthesis

- Phys.Lett.B 248 (1990) 146-150
•
DOI:
- 10.1016/0370-2693(90)90029-6

The Simons Observatory: Science goals and forecasts

Simons Observatory

Collaboration

•

Peter Ade
(
- Cardiff U.
)

et al.

- JCAP 02 (2019) 056
•
e-Print:
- 1808.07445
•
DOI:
- 10.1088/1475-7516/2019/02/056

The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample

BOSS

Collaboration

•

Shadab Alam
(
- Carnegie Mellon U.
)

et al.

- Mon.Not.Roy.Astron.Soc. 470 (2017) 3, 2617-2652
•
e-Print:
- 1607.03155
•
DOI:
- 10.1093/mnras/stx721

Improved BBN Constraints on the Variation of the Gravitational Constant

James Alvey
(
- King's Coll. London
)
,
Nashwan Sabti
(
- King's Coll. London
)
,
Miguel Escudero
(
- King's Coll. London
)
,
Malcolm Fairbairn
(
- King's Coll. London
)

- Eur.Phys.J.C 80 (2020) 2, 148
•
e-Print:
- 1910.10730
•
DOI:
- 10.1140/epjc/s10052-020-7727-y

Measurements of Newton's gravitational constant and the length of day

- EPL 110 (2015) 1, 10002
•
e-Print:
- 1504.06604
•
DOI:
- 10.1209/0295-5075/110/10002

Cosmological Constraints on the Gravitational Interactions of Matter and Dark Matter

Yang Bai
(
- Wisconsin U., Madison
)
,
Jordi Salvado
(
- Wisconsin U., Madison
)
,
Ben A. Stefanek
(
- Wisconsin U., Madison
)

- JCAP 10 (2015) 029
•
e-Print:
- 1505.04789
•
DOI:
- 10.1088/1475-7516/2015/10/029

Phantom scalar-tensor models and cosmological tensions

Mario Ballardini
(
- Ferrara U. and
- INFN, Ferrara and
- Bologna, Ist. Radioastronomia
)
,
Angelo Giuseppe Ferrari
(
- Bologna U. and
- INFN, Bologna
)
,
Fabio Finelli
(
- Bologna, Ist. Radioastronomia and
- INFN, Bologna
)

- JCAP 04 (2023) 029,
- JCAP 04 (2023) 029
•
e-Print:
- 2302.05291
•
DOI:
- 10.1088/1475-7516/2023/04/029

in Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, Vol 9153 (SPIE), 552–572

B.A. Benson
,
P. Ade

Distinguishing Modified Gravity from Dark Energy

Edmund Bertschinger
(
- MIT
)
,
Phillip Zukin
(
- MIT
)

- Phys.Rev.D 78 (2008) 024015
•
e-Print:
- 0801.2431
•
DOI:
- 10.1103/PhysRevD.78.024015

The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant

et al.

- Mon.Not.Roy.Astron.Soc. 416 (2011) 3017-3032
•
e-Print:
- 1106.3366
•
DOI:
- 10.1111/j.1365-2966.2011.19250.x

BIPM., Le Système international d’unités / The International System of Units (‘The SI Brochure’), ninth edn. (Bureau international des poids et mesures)