Investigating the constraints on primordial features with future cosmic microwave background and galaxy surveys

In this article, we do a thorough investigation of the competency forthcoming Cosmic Microwave Background (CMB) and Galaxy surveys in probing features primordial power spectrum. Primordial are specific model-dependent corrections on top standard power-law inflationary spectrum; functional form being given by different scenarios. Signature any significant departure from feature-less spectrum will enable us to decipher intricacies Universe. Here, delve into three major yet distinct features, namely, Bump feature, Sharp feature signal, Resonance signal. To analyse adopt template for each model. We estimate possible constraints parameters employing Fisher matrix forecast analysis upcoming CMB missions such as CMB-S4, CORE-M5, LiteBIRD, PICO conjointly with DESI, EUCLID galaxy surveys. end, make use four observations bounds model parameters, CMB, Baryon Acoustic Oscillations (BAO), Clustering Gravitational Weak Lensing or Shear their permissible synergy. For large scale structure (LSS) information, consider upper limits redshifts purpose circumventing propagation errors stemming uncertainties nonlinear scales parameters. A comparative all has been done relative capabilities these shedding light crucial aspect precision cosmology.