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@Article{KumarNuneYada:2023:NeCoCo,
               author = "Kumar, Suresh and Nunes, Rafael da Costa and Yadav, Priya",
          affiliation = "{Indira Gandhi University} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Indira Gandhi University}",
                title = "New cosmological constraints on f (T) gravity in light of full 
                         Planck-CMB and type Ia supernovae data",
              journal = "Physical Review D",
                 year = "2023",
               volume = "107",
               number = "6",
                pages = "e063529",
                month = "Mar.",
             abstract = "We investigate two new observational perspectives in the context 
                         of torsional gravitational modification of general relativity, 
                         i.e., the f(T) gravity: (i) We use Pantheon data of type Ia 
                         supernovae motivated by a time variation of the Newton's constant 
                         on the supernovae distance modulus relation, and find that a joint 
                         analysis with baryon acoustic oscillations (BAO) and big bang 
                         nucleosynthesis (BBN), i.e., Pantheon + BAO + BBN, provides 
                         constraints on the effective free parameter of the theory to be 
                         well compatible with the ACDM prediction; (ii) We present the 
                         framework of f(T) gravity at the level of linear perturbations 
                         with the phenomenological functions, namely the effective 
                         gravitational coupling mu and the light deflection parameter E, 
                         which are commonly used to parametrize possible modifications of 
                         the Poisson equation relating the matter density contrast to the 
                         lensing and the Newtonian potentials, respectively. We use the 
                         available cosmic microwave background (CMB) datasets from the 
                         Planck 2018 release to constrain the free parameters of the f(T) 
                         power-law gravity and ACDM models. We find that CMB data, and its 
                         joint analyses with Pantheon and BAO data constrain the f(T) 
                         power-law gravity scenario to be practically indistinguishable 
                         from the ACDM model. We obtain the strongest limits ever reported 
                         on f(T) power-law gravity scenario at the cosmological level.",
                  doi = "10.1103/PhysRevD.107.063529",
                  url = "http://dx.doi.org/10.1103/PhysRevD.107.063529",
                 issn = "1550-2368 and 1550-7998",
             language = "en",
           targetfile = "PhysRevD.107.063529.pdf",
        urlaccessdate = "02 maio 2024"
}


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