Single-minus gluon tree amplitudes are nonzero

This paper demonstrates that single-minus tree-level nn-gluon scattering amplitudes, traditionally assumed to vanish, are actually non-zero for specific half-collinear or complexified momentum configurations and provides a piecewise-constant closed-form expression for these amplitudes that satisfies key consistency conditions like Weinberg's soft theorem.

Alfredo Guevara, Alexandru Lupsasca, David Skinner, Andrew Strominger, Kevin WeilWed, 11 Ma⚛️ hep-ph

Maximally Symmetric Boost-Invariant Solutions of the Boltzmann Equation in Foliated Geometries

This paper presents a unified exact solution to the relativistic Boltzmann equation for a boost-invariant conformal gas on dS3×RdS_3 \times \mathbb{R} across all constant-curvature slicings, which reproduces known Bjorken and Gubser flows while introducing a novel analytic "Grozdanov flow" for hyperbolic foliations that naturally encompasses both hydrodynamic and free-streaming regimes.

Mauricio Martinez, Christopher PlumbergWed, 11 Ma⚛️ hep-ph

Bounds on screened dark energy from near-Earth space-based measurements

This paper utilizes near-Earth space-based measurements, including Gravity Probe B, LAGEOS-2, and prospective Sagnac interferometry with advanced clocks, to establish stringent bounds on chameleon, symmetron, and dilaton screened dark energy models, demonstrating that such experiments can exclude significant portions of their previously allowed parameter space.

Fabiano Feleppa, Welmoed Marit de Graaf, Philippe Brax, Gaetano LambiaseWed, 11 Ma⚛️ hep-ph

Neutrino NSI in archaeological Pb

This paper demonstrates that the RES-NOVA experiment, utilizing archaeological lead crystals, can probe neutrino non-standard interactions (NSI) at levels comparable to current global fits in its nominal configuration and potentially surpass them with improved energy thresholds or increased exposure, particularly in the electron and tau sectors.

D. Alloni, G. Benato, P. Carniti, M. Cataldo, D. Cerdeño, A. Cheek, L. Cheng, M. Clemenza, M. Consonni, G. Croci, I. Dafinei, F. A. Danevich, C. de Vecchi, D. Di Martino, E. Di Stefano, N. Ferreiro Iachellini, F. Ferroni, F. Filippini, P. Foldenauer, S. Ghislandi, A. Giachero, L. Gironi, C. Gotti, P. Gorla, D. L. Helis, D. V. Kasperovych, V. V. Kobychev, G. Marcucci, A. Melchiorre, A. Menegolli, S. Nisi, M. Musa, L. Pagnanini, L. Pattavina, G. Pessina, S. Pirro, S. Pozzi, M. C. Prata, A. Puiu, S. Quitadamo, M. P. Riccardi, M. Rossella, R. Rossini, E. Sala, F. Saliu, A. Salvini, V. I. Tretyak, L. Trombetta, D. Trotta, H. YuanWed, 11 Ma⚛️ hep-ph

Weak Charge Form Factor Determination at the Electron-Ion Collider

This paper proposes that the Electron-Ion Collider (EIC) can significantly advance the determination of nuclear weak charge form factors by providing continuous momentum transfer data across a wide range of nuclei, thereby resolving theoretical degeneracies in neutron density distributions that current single-point fixed-target experiments cannot address.

Hooman Davoudiasl, Hongkai Liu, Sonny Mantry, Ethan T. NeilWed, 11 Ma⚛️ hep-ph

Exploring the Landscape of Spontaneous CP Violation in Supersymmetric Theories

This paper explores the realization of spontaneous CP violation in two distinct supersymmetric scenarios—extending the spurion formalism within the exact SUSY limit and constructing a model with intermediate-scale breaking stabilized by soft SUSY breaking and non-perturbative effects—to address the strong CP problem while predicting light scalars in the CP-violating sector.

Fangchao Liu, Shota Nakagawa, Yuichiro Nakai, Yaoduo WangWed, 11 Ma⚛️ hep-ph

A dispersive approach to the CP conserving Kπ+K\to\pi\ell^+\ell^- radiative decays

This paper employs a dispersive approach constrained by analyticity, unitarity, and recent Khuri-Treiman solutions for K3πK\to3\pi amplitudes to derive a minimal two-parameter representation of the form factors governing CP-conserving Kπ+K\to\pi\ell^+\ell^- decays, successfully reproducing experimental data and determining previously unknown signs and amplitude components.

Véronique Bernard, Sébastien Descotes-Genon, Marc Knecht, Bachir MoussallamWed, 11 Ma⚛️ hep-ph

Spectrum of Light Hexaquark States in Triquark-antitriquark Configuration

Using QCD sum rules, this paper investigates triquark-antitriquark hexaquark configurations to interpret the BESIII-observed X(2075)X(2075) and X(2085)X(2085) states, finding that two predicted JP=1J^P=1^- candidates match the experimental masses while offering new predictions for $0^+and and 0^-$ states and analyzing their decay modes.

Xuan-Heng Zhang, Sheng-Qi Zhang, Cong-Feng QiaoWed, 11 Ma⚛️ hep-ph

Does hot QCD have a conformal manifold in the chiral limit?

Based on recent lattice evidence and 't Hooft anomaly constraints, this paper proposes that the chiral phase transition in hot QCD for Nf2N_f \ge 2 massless flavors may be described by a conformal manifold of θB\theta_B-dependent universality classes featuring an exactly marginal operator related to baryon density, rather than a standard Ginzburg-Landau critical point.

Shi Chen, Aleksey Cherman, Robert D. PisarskiWed, 11 Ma⚛️ hep-ph