@Article{Nunes:2020:ApGrIn,
               author = "Nunes, Rafael da Costa",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Searching for modified gravity in the astrophysical gravitational 
                         wave background: Application to ground-based interferometers",
              journal = "Physical Review D",
                 year = "2020",
               volume = "102",
               number = "2",
                pages = "e024071",
                month = "July",
             abstract = "We investigate how the propagation of an astrophysical 
                         gravitational wave background (AGWB) is modified over cosmological 
                         volumes when considering theories beyond general relativity of the 
                         type Horndeski gravity. We first deduce an amplitude correction on 
                         the AGWB induced for the presence of a possible running in the 
                         Planck mass. Then, we apply the spectral noise density from some 
                         ground-based interferometers, namely, the Advanced LIGO (aLIGO), 
                         Einstein Telescope (ET) and Cosmic Explore (CE), to evaluate the 
                         signal-to-noise ratio as a function of the amplitude of the 
                         running of the Planck mass for two different scenarios. We find 
                         that for observation time period greater than or similar to 5 yrs 
                         and greater than or similar to 1 yr, we can have a significant 
                         signal of the AGWB in the band [1-100] Hz from the ET and CE 
                         sensitivity, respectively. Finally, using Fisher information, we 
                         find some forecast bounds, and we deduce less than or similar to 
                         27% and less than or similar to 18% correction at 1 sigma 
                         confidence level on the amplitude of the running of the Planck 
                         mass from ET and CE, respectively. It is clear that a detection of 
                         a AGWB in the future can open a new window to probe the nature of 
                         gravity with good accuracy.",
                  doi = "10.1103/PhysRevD.102.024071",
                  url = "http://dx.doi.org/10.1103/PhysRevD.102.024071",
                 issn = "1550-2368 and 1550-7998",
                label = "self-archiving-INPE-MCTIC-GOV-BR",
             language = "en",
           targetfile = "nunes_searching.pdf",
        urlaccessdate = "27 abr. 2024"
}