Glueballs Confinement and Cosmological Phase Transitions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866918249718874112 |
|---|---|
| author | Issifu, Adamu Rocha, Julio C. M. Brito, Francisco A. Frederico, Tobias |
| author_facet | Issifu, Adamu Rocha, Julio C. M. Brito, Francisco A. Frederico, Tobias |
| contents | We develop a unified framework in which the dynamics of a scalar glueball field, originating from phenomenological nonperturbative QCD confinement, simultaneously governs the deconfinement transition of strongly interacting matter and drives cosmological inflation. Starting from a temperature-dependent effective potential $V_{eff}(ϕ, T)$, we show that the glueball mass vanishes at a critical temperature $T_{cϕ}$, signaling a first-order phase transition characterized by supercooling and a transient metastable vacuum. In the high-temperature regime $T > T_{cϕ}$, the deconfined phase naturally produces an exponential expansion of the scale factor, providing the correct conditions for inflation. By computing the slow-roll parameters and the resulting spectral index $n_s$, tensor-to-scalar ratio $r_s$, and running $α_s$, we confront the model with the Planck observations. The predicted values of $n_s$ and $r_s$ fall within the Planck confidence contours for a broad and physically motivated range of the parameter $γ$ and for $N \approx 50\text{--}60$ e-folds. A distinctive linear relation, $r_s = 4(1-n_s)-72γ$, emerges as a testable signature of the model. Normalization to the observed scalar amplitude further constrains the thermal correction parameter $σ^2$ and the coupling $γ$, linking cosmological data directly to QCD-scale dynamics. These results demonstrate that a confinement-inspired potential can naturally reproduce the observed inflationary phenomenology and offer a novel bridge between early-universe cosmology and the nonperturbative sector of QCD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_13995 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Glueballs Confinement and Cosmological Phase Transitions Issifu, Adamu Rocha, Julio C. M. Brito, Francisco A. Frederico, Tobias High Energy Physics - Phenomenology General Relativity and Quantum Cosmology High Energy Physics - Theory We develop a unified framework in which the dynamics of a scalar glueball field, originating from phenomenological nonperturbative QCD confinement, simultaneously governs the deconfinement transition of strongly interacting matter and drives cosmological inflation. Starting from a temperature-dependent effective potential $V_{eff}(ϕ, T)$, we show that the glueball mass vanishes at a critical temperature $T_{cϕ}$, signaling a first-order phase transition characterized by supercooling and a transient metastable vacuum. In the high-temperature regime $T > T_{cϕ}$, the deconfined phase naturally produces an exponential expansion of the scale factor, providing the correct conditions for inflation. By computing the slow-roll parameters and the resulting spectral index $n_s$, tensor-to-scalar ratio $r_s$, and running $α_s$, we confront the model with the Planck observations. The predicted values of $n_s$ and $r_s$ fall within the Planck confidence contours for a broad and physically motivated range of the parameter $γ$ and for $N \approx 50\text{--}60$ e-folds. A distinctive linear relation, $r_s = 4(1-n_s)-72γ$, emerges as a testable signature of the model. Normalization to the observed scalar amplitude further constrains the thermal correction parameter $σ^2$ and the coupling $γ$, linking cosmological data directly to QCD-scale dynamics. These results demonstrate that a confinement-inspired potential can naturally reproduce the observed inflationary phenomenology and offer a novel bridge between early-universe cosmology and the nonperturbative sector of QCD. |
| title | Glueballs Confinement and Cosmological Phase Transitions |
| topic | High Energy Physics - Phenomenology General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.13995 |