Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ phenomenology

Shedding light on the nature of ϕ(2170)\phi(2170) with the parton and hadron cascade model PACIAE

Using the PACIAE 4.0 model to simulate e+e−e^+e^- collisions at s=4.95\sqrt{s}=4.95 GeV, this study evaluates various structural interpretations of the ϕ(2170)\phi(2170) resonance—including strangeonium, hybrid, tetraquark, and molecular configurations—by calculating their production yields and identifying distinct rapidity and transverse momentum spectral signatures that can distinguish their true nature.

Jian Cao, Wen-Chao Zhang, Bo Feng, Ya-Hui Hou, An-Ke Lei, Zhi-Lei She, Hua Zheng, Li-Lin Zhu, Dai-Mei Zhou, Yu-Liang Yan (…)2026-07-02
⚛️ lattice

Inclusive Bˉs↦Xsˉcℓνˉ\bar B_s\mapsto X_{\bar sc} \ell \bar \nu decays from lattice QCD: computational strategy and a first physical result

This paper presents a novel lattice QCD strategy combining non-perturbative data at lighter heavy meson masses with Operator Product Expansion predictions to compute the inclusive Bˉs→Xsˉcℓνˉ\bar B_s \to X_{\bar sc} \ell \bar \nu decay rate, achieving a 7% total uncertainty using ETMC gauge ensembles.

Alessandro De Santis, Antonio Evangelista, Gael Finauri, Roberto Frezzotti, Giuseppe Gagliardi, Paolo Gambino, Marco Gar (…)2026-07-02
⚛️ phenomenology

Nonlinear Breit-Wheeler pair production using polarized photons from inverse Compton scattering

This paper presents Monte Carlo simulations demonstrating that near-term experiments using 100-TW lasers and existing electron beams can generate highly polarized, mono-energetic gamma rays via inverse Compton scattering to precisely measure the polarization dependence of nonlinear Breit-Wheeler pair production, while future linear collider configurations could further reveal harmonic structures and the perturbative-to-nonperturbative transition.

Daniel Seipt, Mathias Samuelsson, Tom Blackburn2026-07-01
⚛️ phenomenology

QCD corrections to charged-current decays with Heavy Sterile Neutrinos in initial or final state and their impact on τ\tau decays

This paper calculates QCD corrections to charged-current decays involving heavy sterile neutrinos to establish robust perturbative mass ranges and derive constraints on sterile neutrino mixing angles and masses using τ\tau-decay data, while also highlighting potential tensions in current experimental measurements that could motivate searches for dark-sector particles.

Tim Kretz, Ulrich Nierste2026-07-01
⚛️ phenomenology

Profiling systematic uncertainties in Simulation-Based Inference with Factorizable Normalizing Flows

This paper proposes a general Simulation-Based Inference framework utilizing Factorizable Normalizing Flows and an amortized training strategy to enable rigorous, fully profiled unbinned likelihood fits of high-dimensional differential distributions while efficiently handling systematic uncertainties and neural network statistical variance.

Davide Valsecchi, Mauro DonegÃ, Rainer Wallny2026-07-01
⚛️ phenomenology

ΛΛˉ\Lambda \bar \Lambda spin correlations in high-energy collisions from quantum channels: an open quantum system view of hadronization

This paper proposes an open quantum system framework using quantum channels to model ΛΛˉ\Lambda \bar \Lambda spin correlations during hadronization, demonstrating that experimental data aligns with a two-qubit depolarizing channel and offering new insights into confinement dynamics beyond simple entanglement classification.

João Barata, Iván Cuntín, Enrique Rico, Bin Wu2026-07-01