Articles with "baryon" as a keyword



DW-genesis: baryon number from domain wall network collapse

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep03(2025)199

Abstract: Axionic domain walls, as they move through the early universe plasma during their collapse, can generate a net baryon and lepton number through the mechanism of spontaneous baryogenesis, provided that there is a coupling between… read more here.

Keywords: genesis; baryon number; baryon; network ... See more keywords

Semiclassics for the QCD vacuum structure through T2-compactification with the baryon-’t Hooft flux

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Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep08(2024)001

Abstract: We study QCD vacuum structure with the topological θ angle using a recently proposed semiclassical approach on ℝ2 × T2 with the ’t Hooft and baryon magnetic fluxes. Under the assumption of adiabatic continuity in… read more here.

Keywords: vacuum; qcd vacuum; baryon; vacuum structure ... See more keywords

Dirac quantization and baryon intrinsic frequencies in hypersphere soliton model

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Published in 2021 at "Nuclear Physics B"

DOI: 10.1016/j.nuclphysb.2021.115611

Abstract: Quantizing a soliton on a hypersphere, we obtain the first class Hamiltonian, and evaluate the baryon physical quantities which are in good agreement with the corresponding experimental data. In particular, we find that the predicted… read more here.

Keywords: quantization baryon; dirac quantization; hypersphere soliton; intrinsic frequencies ... See more keywords

Observation of charge–parity symmetry breaking in baryon decays

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Published in 2025 at "Nature"

DOI: 10.1038/s41586-025-09119-3

Abstract: The Standard Model of particle physics—the theory of particles and interactions at the smallest scale—predicts that matter and antimatter interact differently due to violation of the combined symmetry of charge conjugation (C) and parity (P).… read more here.

Keywords: standard model; baryon; baryon decays; usepackage ... See more keywords

Mirror Dirac leptogenesis

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Published in 2020 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2020/03/036

Abstract: We consider an interesting scenario, based on the existence of a mirror world, in which light Dirac neutrinos are generated from a seesaw mechanism and leptogenesis occurs at high scale without violating lepton number. Since… read more here.

Keywords: leptogenesis; mirror dirac; baryon; dirac leptogenesis ... See more keywords

The 2024 BBN baryon abundance update

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Published in 2024 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2024/06/006

Abstract: We revisit the state of the light element abundances from big bang nucleosynthesis in early 2024 with particular focus on the derived baryon abundance. We find that the largest differences between the final baryon abundances… read more here.

Keywords: light element; baryon abundance; element abundances; baryon ... See more keywords

Detailed derivation of the 3 P 0 strong decay model applied to baryons

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Published in 2024 at "Chinese Physics C"

DOI: 10.1088/1674-1137/ad8d4c

Abstract: By using the pair creation model, we provide a detailed derivation of the transition matrix for a baryon decaying into a meson-baryon system. This analysis was successfully conducted for a meson in [J. Segovia, D.… read more here.

Keywords: meson; detailed derivation; strong decay; baryon ... See more keywords

Implications of feedback solutions to the S8 tension for the baryon fractions of galaxy groups and clusters

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Published in 2024 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1055

Abstract: Recent large-scale structure (LSS) surveys have revealed a persistent tension in the value of $S_8=\sigma _8\sqrt{(\Omega _{\mathrm{m}}/0.3)}$ compared to predictions from the standard cosmological model. Although some studies indicate that baryonic effects are too small… read more here.

Keywords: baryon fractions; baryonic effects; baryon; galaxy groups ... See more keywords
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Ξ hyper-nuclear states predicted by NLO chiral baryon-baryon interactions

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Published in 2021 at "Progress of Theoretical and Experimental Physics"

DOI: 10.1093/ptep/ptab115

Abstract: The Ξ single-particle potential obtained in nuclear matter with the next-to-leading order baryon-baryon interactions in chiral effective field theory is applied to finite nuclei by an improved local-density approximation method. As a premise, phase shifts… read more here.

Keywords: baryon baryon; nuclear states; states predicted; hyper nuclear ... See more keywords

Observation of a New Charmed Baryon Decaying to Ξ_{c}^{+}π^{-}π^{+}.

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Published in 2025 at "Physical review letters"

DOI: 10.1103/gghl-m6fm

Abstract: The Ξ_{c}^{+}π^{-}π^{+} spectrum is investigated using proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4  fb^{-1}, collected by the LHCb experiment during 2016-2018. Four states are observed with high significance,… read more here.

Keywords: charmed baryon; new charmed; mev; baryon ... See more keywords

Spin polarization of holographic baryon in strongly coupled fluid

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Published in 2025 at "Physical Review D"

DOI: 10.1103/jkv4-m723

Abstract: The spin polarization for a baryon in a hydrodynamic medium has been extensively studied in the weakly coupled regime using quantum kinetic theory. As a first study of this problem in the strongly coupled regime,… read more here.

Keywords: strongly coupled; baryon; spin polarization; holographic baryon ... See more keywords