Papers nuevos sobre Partículas y campos
308 papers nuevos sobre partículas y campos en los últimos 7 días, dentro de Física. Acá están los 50 que Pipette considera más valiosos, con el resultado principal en palabras de sus autores.
Lo mejor de la semana
LLM-Based FORM Code Generation with Verification-Driven Fine-Tuning
Fine-tuning a compact open-weights model (Qwen3-8B) with quantized low-rank adaptation (QLoRA) yields a specialist that, evaluated on four complementary benchmarks (840 tasks, single attempt each), decisively outperforms frontier models with up to 756B parameters in execution rate and in strict, FORM-verified output matching on the larger benchmarks, and remains statistically indistinguishable from them on the smaller, harder ones.
PreprintDice ser un gran avanceClimate, Science, and the FCC: Think Clearly, Choose Wisely, Act Swiftly
Grounded in a clear and compelling scientific vision, it confronts emotionally charged imagery with orders of magnitude, distinguishes a project's footprint from its full balance sheet, considers the costs of postponing or abandoning it, and explores ways of reducing its impacts-including the still uncertain prospect of natural hydrogen.
PreprintInterés amplioFácil de leerDiscovery of an unexpectedly light and narrow beauty-strange state
Here the observation of a new resonance in the beauty-strange sector with a global significance exceeding seven standard deviations is reported using proton-proton collision data recorded by the Large Hadron Collider beauty (LHCb) experiment at the European Organization for Nuclear Research (CERN).
PreprintDice ser un gran avanceSearch for the Decay Mode in Super-Kamiokande Using Machine Learning Techniques
We report a new partial lifetime limit of years for the trinucleon decay mode , obtained from a search conducted using the Super-Kamiokande detector with 0.401 megaton-years of exposure across five operational periods (SK-I: 1996--2001, SK-II: 2002--2005, SK-III: 2006--2008, SK-IV: 2008--2018, SK-V: 2019--2020).
PreprintDice ser un gran avanceFirst Measurement of Differential Cross Sections in Kinematic Imbalance Variables with Electron Neutrino Interactions Using the MicroBooNE Detector
We report the first measurement of flux-integrated cross sections as a function of kinematic imbalance variables for electron neutrino interactions on argon.
PreprintDice ser un gran avanceString-breaking dynamics in a quantum simulator
We find that charge pairs appear near the string edges and subsequently spread out into the bulk, revealing a mechanism for dynamical string breaking distinct from the conventional Schwinger mechanism.
Revista con revisión por paresCalculating Axion-Matter Couplings in String Theory
In this work we calculate, for the first time, the dominant perturbative contributions to axion--matter couplings explicitly in string theory.
PreprintDice ser un gran avanceObservation of the doubly charmed baryon
The structure is consistent with originating from a weakly decaying particle and is identified as the doubly charmed baryon .
PreprintHolonomic techniques for massive 3-loop form factors: the gluonic case
We achieved a complete analytic series expansion around for the first time, which depends on MZVs and three constants out of higher number spaces, along with reliable analytic continuations across , serving as a landmark benchmark for modern symbolic computation.
Preprint con versión publicadaDice ser un gran avanceSterile Neutrino Dark Matter Cries for GeV Heavy Neutral Leptons
We find that the MSM provides a common explanation for all aforementioned phenomena only within a well-defined parameter space that is limited in all directions, with HNL masses kinematically accessible by the SHiP experiment as well as searches at the LHC and future lepton colliders.
PreprintSearch for resonant and nonresonant production of pairs of dijet resonances with b jets in the final state in proton-proton collisions at = 13 TeV
This is the first LHC search for resonant production of pairs of fully resolved dijet resonances with b jets in the final state, in which all resonances considered correspond to non-standard-model states.
PreprintProbing the Effective HZ Coupling via H Production at FCC-ee
This study demonstrates that the process provides a novel and direct handle on the effective and couplings through production, complementary to measurements based on Higgs decays.
PreprintARGUS: an experiment-agnostic framework for detector-health monitoring in particle physics
ARGUS (Automated Anomaly-detection, Run-quality and General Unified Surveillance) is a configuration-driven framework that separates what is generic in this problem (the health monitors, their validation, and the reporting) from what is not (the data schema and the thresholds).
PreprintProbing light axion-like particles in vector boson fusion at CMS with data parking and scouting
We show that the Compact Muon Solenoid (CMS) experiment can overcome both by combining its data-acquisition strategies with the tracker-based reconstruction of merged photon pairs.
PreprintCould the Fundamental Laws of Nature be Inferred Mathematically from Only Few Axioms?
As it has been shown in the Ref.[1] (22 Sep.2017, see also the comments), useing a new definite mathematical axiomatic-algebraic matrix approach, all the fundamental laws of nature could be derived uniquely (where the axiom of "no zero divisors" of the ring of integers has been generilzed and written in a new definite formulation, then basically assuming that all the physical quantities could only and only take the rational values).
Preprint con versión publicadaAfirmaciones fuertes, leer con cuidadoDice ser un gran avanceQuantum Love Numbers are Non-Zero
We show that this is not true in the quantum theory.
PreprintMultitask Jet Analysis with Vision-Language Models: A Physics-Informed Four-Panel Representation
Thus rasterizing energy flow, species, displacement, and jet charge, with parameter-efficient adaptation, supports jet analysis through one instruction-conditioned interface for future collider data.
PreprintInfrared Screening of the Cosmological Constant
The observed cosmological constant is set by the deepest infrared scale of the present universe rather than by the microscopic scales that contribute to the vacuum energy.
PreprintHalf-ladder partial waves for all with applications to string theory
By constructing multi-particle positivity tests for the half-ladder and "twisted" half-ladder diagrams, we show that the only amplitudes consistent with unitarity are those belonging to open bosonic string theory () below the critical dimension .
PreprintEmergent Scaling Symmetry and Universal Interior Criticality of Scalarized Black Holes
In this paper we report a family of new universality classes in which differs from 1/2.
PreprintMeasuring Dual-Superconductor Length Scales in the QCD Vacuum at HERA
Fitting Clem's vortex profile to all 104 available H1 and ZEUS exclusive photoproduction points, spanning and , we obtain and extract , , and a Ginzburg--Landau parameter , corresponding to the type-II regime.
PreprintSupernova Gamma-Ray Echo as an Astrophysical Near Detector for Galactic Neutrino Propagation
Inspired by near--far comparisons in terrestrial oscillation experiments, we show that next-generation MeV observations of the supernova gamma-ray echo---the delayed 511 keV signal induced by the neutrino burst in the stellar envelope---can serve as an astrophysical near detector for the emitted fluence.
PreprintTwo-loop amplitude for the associated production of a top-anti-top pair and a boson at hadron colliders
In this contribution I present a calculation of the inclusive cross-section for the associated production of a top-anti-top pair and a W boson at next-to-next-to-leading order in QCD, based on the first exact computation of the two-loop QCD amplitude at leading colour.
PreprintFunctional Renormalization for Random Matrix Theory: The relational background field method
We develop a novel approach based on the introduction of a partial matrix-valued intermediate field.
PreprintSix-point consistency and uniqueness of the Veneziano amplitude
We establish uniqueness of the Veneziano four-point amplitude in a meromorphic class by combining six-point consistency with a known low-order supersymmetry relation.
PreprintThe phenomenology of Axion Relic Pockets
Using recent data from the IceCube neutrino telescope, we derive the first limits from terrestrial experiments on axion relic pockets as dark matter.
PreprintALP photo-production in the parton and hadron cascade model PACIAE
Based on the abundant photons in final hadronic state, the statistical-mechanics-based coalescence model DCPC is applied to phenomenologically recombine post-freeze-out photon pairs into axion-like particles (ALPs) for the first time.
PreprintCollapse to extremality: The third law of black hole thermodynamics in quantum gravity
We present a two-step construction to violate the classical third law of black hole thermodynamics for charged black holes in four dimensions.
PreprintBulk OPE Coefficients of the -Series Virasoro Minimal Models
We present bulk-primary operator-product coefficients for every Virasoro minimal model with an , , or modular invariant.
PreprintCentrality-dependent nuclear modification from hard-soft correlations in the glasma
We present first predictions from the saturation-physics-based framework IP-Glasma for the nuclear modification factor as a function of centrality in + O, + Pb, O + O, and Pb + Pb collisions due only to initial-state effects.
PreprintMonte Carlo sampling of first-order QED processes in laser and pulsar plasmas
Here we replace this procedure with elementary-function approximations for synchrotron radiation and the nonlinear Breit--Wheeler process.
PreprintEvidence for a Continuous Hadron--Quark Transition in Cold Dense Matter
Statistical evidence for a continuous hadron-quark transition is found in this work.
PreprintPrecise QCD Predictions for the Scotogenic Model at Colliders
Motivated by the anticipated data rates of the high-luminosity phase of the Large Hadron Collider, we report the first predictions up to next-to-leading order in quantum chromodynamics with parton-shower matching for the production and decay of scalars and heavy neutrinos from the Scotogenic model for neutrino masses and dark matter at TeV and TeV.
PreprintCódigo disponibleThe Double Copy of the Black Ring
We construct an exact Weyl double copy of the singly spinning five-dimensional Emparan--Reall black ring.
PreprintGravitational Waves from Long Strings and Loops
We compute the gravitational wave spectrum produced by a global cosmic string network in the scaling regime.
PreprintPlasma Effects Suppress Mixing-Induced Collisional Freeze-In
Using first-principles nonequilibrium Kadanoff-Baym equations in the flavour-covariant formulation, we establish the general result that plasma effects also suppress collisional freeze-in: the vacuum mixing angle in the collision rate is replaced by its plasma-corrected counterpart.
PreprintA Unitary Fixed Point Away from Threshold: Momentum-Surface EFT for Strong Mixing
We demonstrate this mechanism in a simple quantum-mechanical two-channel model with a systematic power counting, where strong mixing between scattering and bound states develops in a narrow region around a finite momentum , leading to a perturbative violation of unitarity.
PreprintAll-Order Helicity Selection Rules in Effective Field Theories
Using on-shell methods, we derive an all-order non-renormalization theorem for general four-dimensional effective field theories, relying on Poincar\'e invariance and unitarity.
PreprintA New Probe of Strongly-Interacting Dark Sector using Neutrino Telescopes
We show that dark vector mesons in a confining dark sector can be resonantly produced in high-energy neutrino scattering on the cosmic neutrino background, generating a distinctive absorption feature in the cosmic neutrino energy spectrum.
PreprintTowards Foundation Models on Hardware Accelerators for Particle Physics
We demonstrate three ways the student's performance improves: adding a message-passing layer to the Deep Sets architecture, training on the teacher's soft labels rather than on ground-truth labels alone, and distilling from a pretrained teacher rather than from the same architecture trained from scratch.
PreprintFunctional Dimensional Regularization
We introduce and develop Functional Dimensional Regularization (FDR), a novel functional renormalization group (RG) framework that extends the principles of dimensional regularization beyond the perturbative -expansion.
PreprintCritical Kasner scaling from Cauchy-horizon collapse near holographic phase transitions
If the post-collapse geometry evolves into a Kasner regime, the boundary order-parameter scaling further implies Crucially, zero-mode matching fixes both the critical exponents and the associated amplitudes, without any fit to the nonlinear interior.
PreprintQuarkonium production in light-ion collisions with the ALICE experiment
In this contribution the new measurements of charmonium production will be shown using the light-ion collisions data collected for the first time at the LHC in 2025 (oxygen-oxygen (OO), proton-oxygen (pO)).
PreprintCosmological Correlators from Resurgence
We show that it is possible to reconstruct the inflationary correlators with massive exchanges, for a discrete heavy spectrum and arbitrary tree topologies, from the low-energy effective theory together with unitarity and Bunch-Davies boundary conditions.
PreprintThe universe as a superconductor: How to search for a photon mass
Because the higgs is necessarily millicharged and light, the phase of the theory (Meissner, vortex, or symmetry-restored) depends on the ambient magnetic field, so the photon mass an experiment measures depends on the environment it is performed in.
PreprintHidden Region Finder: asymptotic expansions of Feynman integrals in Minkowski space
By making a precise connection with pinch singularities in parameter space and the associated Landau conditions, we identify the general mechanism giving rise to these regions and devise an algorithm, the Hidden Region Finder, to determine them.
PreprintA variational framework for variance reduction in lattice field theory
We present a variational framework that recasts it as a transport problem: the loss of signal reflects a mismatch between the distribution one samples and the one needed to measure an observable, and can be reduced by transporting configurations to close that gap.
PreprintSine-Gordon Model with Bosonic Tensor Networks: Continuum Matching and Soliton Scattering
We use bosonic tensor networks to connect the lattice sine-Gordon model in the Hamiltonian formulation quantitatively to its continuum theory.
PreprintObservation of and Threshold Enhancements in the System
In addition, a new pseudoscalar resonance, designated as , is observed in the partial wave with a mass value consistent with the previously reported state, which represents the heaviest light meson observed to date.
PreprintDiagnosing Inconsistencies in 4d N=1 Gauge Theories with Explainable AI
These results demonstrate that explainable AI (XAI) can be used to identify local defects responsible for inconsistencies in supersymmetric gauge theories.
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