The model is not conformal, and a scalar dilaton field

The gap

Evidence profile

Sourced from the limitations section and future work and stated research gap of the source papers, classified as general, drawn from work published between 2024 and 2026, spanning 3 journals. Those papers have been cited 58 times in total.

Supporting evidence — 3 representative gaps

• Bayesian location of the QCD critical point from a holographic perspective (2024) · Physical review. D/Physical review. D. · cited 58× · doi

  The model is not conformal, and a scalar dilaton field is introduced to break conformal invariance. The analysis is limited to the baryon number and does not include the electric charge and strangeness. The prior samples do not include a critical point, but the posterior samples do.

  generallimitations section
  Keywords: model conformal scalar dilaton field introduced break invariance
• Impact of spectator fields and non-minimal couplings in spontaneous baryogenesis (2026) · International Journal of Modern Physics A · doi

  In this work, we extended the model of spontaneous baryogenesis considering two different scenarios. Firstly, we introduced a non-minimal coupling term between gravity and the inflaton. We showed that this term significantly enhances baryogen- esis, and accordingly the model can reproduce the experimental value of the baryon asymmetry. Then, we considered a complex scalar spectator field non-minimally coupled to gravity and through a biquadratic interaction to the inflaton. Also in this case, we obtained a remarkable improvement in terms of baryon asymmetry, but not sufficient to reproduce cosmological observations. Future works comprehend further extensions of the spontaneous baryogenesis framework, such as including the electromagnetic sector through a coupling with the inflaton. Another intriguing possibility is the introduction of a disformal non- minimal coupling between inflaton and gravity, as a generalization of the conformal one studied in this work. It would also be worthwhile to replace the complex scalar spectator field with a fermion, to evaluate its impact on baryogenesis. Lastly, a more realistic treatment of spontaneous baryogenesis would incorporate quantum chromodynamics, possibly unveiling new mechanisms of asymmetry generation.

  generalfuture workevidence 5/5
  Keywords: baryogenesis inflaton spontaneous coupling gravity asymmetry model minimal term reproduce baryon complex scalar spectator field
• Gravitational baryogenesis constraints on Nojiri–Odintsov f(R) gravity (2026) · The European Physical Journal Plus · doi

  The observed predominance of baryonic matter content over antibaryonic matter content across the cosmos is a longstanding puzzle in cosmology. The absence of significantly massive antimatter regions, along with the big bang scenario, suggests that the universe evolved from homogeneous baryonic components, pointing towards the necessity for a process such as baryogenesis to account for the observed asymmetry.

  generalstated research gapevidence 5/5
  Keywords: observed predominance baryonic matter content antibaryonic across cosmos

Questions about this gap