Twisting the Quark-Gluon Plasma: How Spin and Shape Alter Heavy Quark Behavior
![The study demonstrates how varying angular velocities-specifically, anisotropy strengths of [latex]\nu = 1.025[/latex] and [latex]\nu = 1.1[/latex]-affect the spectral functions of both the [latex]J/\Psi[/latex] and [latex]\Upsilon(1S)[/latex] mesons at a chemical potential of [latex]\mu = 0.1\,{\rm{GeV}}[/latex] and [latex]c = -0.3\;{\rm{Ge}}{{\rm{V}}^{2}}[/latex], revealing distinct longitudinal and transverse polarization behaviors relative to the anisotropic direction.](https://arxiv.org/html/2601.11064v1/x4.png)
A new holographic study reveals how the rotation and anisotropic expansion of the quark-gluon plasma impact the spectral signatures of heavy quarkonia, offering crucial insights into the extreme conditions created in heavy-ion collisions.
![The system investigates a three-dimensional extension of the Su-Schrieffer-Heeger (SSH) model-specifically a Hubbard-SSH model-where layers are coupled by alternating hopping amplitudes, and renormalization of two-particle interactions is considered solely at the outermost layer via an on-site Hubbard [latex]U[/latex] term, allowing for exploration of emergent phenomena arising from interlayer interactions and strong correlations.](https://arxiv.org/html/2601.11055v1/x1.png)
![Recent results from the Belle II experiment explore the decay [latex]B \to s \nu \bar{\nu}[/latex], reinterpreting evidence for [latex]B^{+} \to K^{+} \nu \bar{\nu}[/latex] through marginalized posterior analysis of Wilson coefficients-specifically, sums of [latex]C_{V_R}, S_R, T_R[/latex]-and examining data from [latex]B \to X_s \nu \bar{\nu}[/latex] decays across three distinct mass regions using optimized BDT outputs to differentiate charged and neutral B decays, as well as contributions from [latex]e^{+}e^{-} \to q\bar{q}[/latex] (where q represents up, down, strange, and charm quarks).](https://arxiv.org/html/2601.11279v1/june.png)
![The interplay of photon-electron interactions-specifically the [latex]e-ph[/latex], [latex]e-e[/latex], and photon-eterm terms-reveals a dynamic electron distribution shaped by time-dependent energy landscapes at [latex]E_0 = 0.6 \text{V/nm}[/latex], with notable shifts occurring at [latex]t = -3.2 \text{fs}[/latex], [latex]-0.5 \text{fs}[/latex], and [latex]2.2 \text{fs}[/latex], ultimately manifesting as electron distributions clustered around [latex]\mathcal{E} = \mathcal{E}_{F} \pm \hbar \omega_{0}/8[/latex].](https://arxiv.org/html/2601.10985v1/x3.png)
![Polariton dispersion reveals a complex interplay between light and matter, where the coupling of excitons and photons-illustrated by the [latex]\Omega_{k_\parallel}[/latex] relationship-creates hybrid light-matter quasiparticles whose electronic and photonic character-quantified by [latex]\eta_{\mathbf{k}_\parallel}^{\mathrm{el}}[/latex] and [latex]\eta_{\mathbf{k}_\parallel}^{\mathrm{ph}}[/latex]-is strongly dependent on momentum, ultimately influencing the population of plasmons in the ground state as described by the anomalous Hopfield coefficient [latex]|x_{\mathbf{k}_\parallel}|^2[/latex] and its asymptotic behavior in the quasistatic limit [latex]k_\parallel \gg \omega_p/c[/latex].](https://arxiv.org/html/2601.11297v1/x5.png)
![The study demonstrates a quantifiable relationship between antineutron momentum and atomic number as manifested in the measured annual modulation signal [latex]\sigma_{ann}(p_{\bar{n}}; A)[/latex], providing insight into the underlying physics of this phenomenon as detailed in reference [13].](https://arxiv.org/html/2601.11390v1/fig61_pr.png)
