Tootfinder

Impact of First-order Electroweak Phase Transition on QCD Axion
Dipendu Bhandari, Soumen Kumar Manna, Arunansu Sil
https://arxiv.org/abs/2507.05353 https:/…

Impact of First-order Electroweak Phase Transition on QCD Axion
The QCD axion addresses the strong CP problem and dark matter via the misalignment mechanism, typically requiring a decay constant $f_a\sim \mathcal{O}(10^{12}$ GeV), unless the initial misalignment angle ($θ_i$) is fine-tuned. This work presents a novel approach where the possibility that the QCD axion satisfying the correct relic is extended over a broad range for $f_a\in [10^8, 10^{14}$] GeV without fine-tuning the $θ_i$, by introducing a new phase of axion oscillation dynamics across the …

An exact solution of planar QCD by a complex matrix ensemble
Alexander Migdal
https://arxiv.org/abs/2507.05096 https://arxiv.org/pdf/…

An exact solution of planar QCD by a complex matrix ensemble
We construct an exact solution to the planar QCD loop equation in four-dimensional Euclidean space using a novel matrix-valued momentum loop formalism. Central to this construction is a new loop calculus, where functional derivatives act on the loop velocity $\dot C(θ)$. This framework yields finite, well-defined expressions for point and area derivatives in loop space and highlights the role of the loop-space Bianchi identity in ensuring consistency with gauge theory. The Wilson loop is rep…

Probing QCD Confinement with Spin Entanglement
The STAR Collaboration
https://arxiv.org/abs/2506.05499 https://arxiv.org/pdf/2506.054…

Probing QCD Confinement with Spin Entanglement
Once regarded as mere emptiness, the vacuum is now understood to possess a rich and complex structure, characterized by fluctuating energy fields and a condensate of virtual quark-antiquark pairs. These pairs cause spontaneous chiral symmetry breaking, a fundamental phenomenon that is believed to generate over 99% of the mass in the visible universe. However, the precise mechanism linking the chiral symmetry breaking to the mass generation associated with quark confinement remains one of the mo…

Topped baryons from QCD sum rules
Shu-Wei Zhang, Wei-Han Tan, Xuan Luo, Hua-Xing Chen
https://arxiv.org/abs/2507.05895 https://arxiv.…

Topped baryons from QCD sum rules
The recent CMS observation of a near-threshold enhancement in top quark pair production provides the first experimental indication of a short-lived pseudoscalar $t\bar{t}$ bound state, commonly referred to as toponium. While most existing studies focus on toponium using perturbative QCD near threshold, baryonic configurations containing a single top quark -- singly topped baryons -- offer a complementary nonperturbative perspective. Notably, singly topped baryons are expected to exhibit a longe…

An audio book wrote by Dan Houser, setting is in a not far future. An ironic story that reflex #ai, people, the way we live and corporation greed.
You should give a listen.
A Better Paradise

Planar Abelian Duals of Chern-Simons QCD
Sergio Benvenuti, Riccardo Comi, Sara Pasquetti, Gabriel Pedde Ungureanu, Simone Rota, Anant Shri
https://arxiv.org/abs/2506.05465

Planar Abelian Duals of Chern-Simons QCD
We propose novel infrared dualities connecting 2+1 dimensional non-Abelian gauge theories (with unitary or special unitary gauge groups) to Abelian gauge theories. The dual Abelian theories are characterized by a planar quiver structure, where interactions are fully encoded in the quiver diagram. These dualities are rooted in supersymmetric mirror symmetry and display the characteristic exchange of mesonic and monopole operators. Furthermore, our proposed dualities exhibit features of bosonizat…

Rotational susceptibility of a hot and dense hadronic matter: A possible probe of QCD phase transition
Bhagyarathi Sahoo, Kshitish Kumar Pradhan, Dushmanta Sahu, Raghunath Sahoo
https://arxiv.org/abs/2507.03708

Rotational susceptibility of a hot and dense hadronic matter: A possible probe of QCD phase transition
We study the effect of rotation and the consequent angular momentum fluctuations in a hadron resonance gas produced in ultra-relativistic heavy ion collisions. The rotational susceptibilities ($χ_{\rm ω}$, $χ^{2}_{\rm ω}$, etc.), which quantify how much the system responds to a small angular velocity, are estimated for the first time, considering that these can be valuable indicators of the QCD phase transition. The higher-order rotational susceptibilities and their ratios are estimated in …

Modelling top-quark decays in $t\bar{t}t\bar{t}$ production at the LHC
Manal Alsairafi, Nikolaos Dimitrakopoulos, Malgorzata Worek
https://arxiv.org/abs/2507.04849

Modelling top-quark decays in $t\bar{t}t\bar{t}$ production at the LHC
We compare the fixed-order NLO QCD predictions for the $pp\to t\bar{t}t\bar{t}+X$ process in the $4\ell$ decay channel with the parton-shower based results obtained with the POWHEG and MC@NLO matching methods. In the first case, NLO QCD corrections are consistently included in both the $t\bar{t}t\bar{t}$ production step and the decays of the four top quarks, preserving all spin correlations. In the second approach, higher-order effects in top-quark decays with approximate spin correlations are …

Unraveling $K(1690)$ as a pseudoscalar $ud\bar{d}\bar{s}$ tetraquark state
Jin-Peng Zhang, Xu-Liang Chen, Zi-Xi Ou-Yang, Xiang Yu, Wei Chen, Jia-Jun Wu
https://arxiv.org/abs/2507.05726

Unraveling $K(1690)$ as a pseudoscalar $ud\bar{d}\bar{s}$ tetraquark state
The recent observed $K (1690)$ has been identified as a supernumerary pseudoscalar resonance signal in the strange-meson spectrum predicted by quark model calculations. It is the best candidate of a strange crypto-exotic state. In this work, we systematically study the hadron masses of $ud\bar{d}\bar{s}$ tetraquark states with $J^P = 0^-$ in the method of QCD sum rules (QCDSR). For ten interpolating currents, we calculate the correlation functions up to dimension-8 nonperturbative condensates. …

This https://arxiv.org/abs/2504.15462 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Light front holographic QCD theory in the generalized uncertainty principle framework
In this article, we develop the framework of light-front holographic QCD in the presence of a minimal length scale by incorporating the Generalized Uncertainty Principle (GUP) into the QCD Lagrangian. From this modified theory, we derive a GUP-corrected light-front holographic QCD (LFH QCD) equation and obtain the corresponding hadronic mass spectrum. Our results show that the hadronic mass spectrum acquires an additional GUP-dependent term that increases the masses. This mass enhancement leads…