activity
19972026
most citedetab Decay into Two Photons

13 citations · 62 across the 20 of their papers we have counts for

collaborators

21 papers

cs.CY2026

Qualified Cross-References as a Verification Method: The Normative Environment of the EU AI Act

Nicola Fabiano

Legal cross-references are commonly represented as links between instruments or provisions. In a curated legal knowledge base, a link must also identify the legal character of the…

cs.CY2026

Inferential Capability Does Not Determine Legal Scope

Nicola Fabiano

Two instruments of EU digital law place inference at their centre and mean different things by it. Article 3(1) of the AI Act uses the capability to infer constitutively: it is the…

math.GM2026

Path Averaged Polynomial Contractions: A New Generalization of Polynomial Contractions, Path-Averaged Contractions, and Banach Contractions

Clement Boateng Ampadu, Nicola Fabiano

The notion of polynomial contraction appeared in [2], whilst the notion of path-averaged contraction appeared in [3] for metric spaces, in [4,5] for b-metric spaces, , and in [6] f…

math.FA2026

A Restatement of Fixed Point Existence: From Banach to Singh Contractions

Nicola Fabiano, Zouaoui Bekri

This paper presents a reformulation of classical existence and uniqueness results for second-order boundary value problems (BVPs). For Singh contractions, we allow to satisfy…

cs.CY2026

Prioritization of Risks from Artificial Intelligence: A Delphi Study of 272 International Experts

Alexander K. Saeri, Jess Graham, Michael Noetel +185

Artificial intelligence poses many risks, ranging from familiar present-day harms to unprecedented and potentially catastrophic ones. Effective risk management requires prioritizat…

cs.CY2026

The AI Legal Specialist: A Juridically Autonomous Professional Profile for AI Governance

Nicola Fabiano

The rapid global expansion of artificial intelligence regulation has generated, across multiple jurisdictions, a demand for legal expertise dedicated to AI that the market has addr…

math.GM2026

Discontinuity at the fixed point in suprametric spaces

Nicola Fabiano, Sedigheh Barootkoob, Hossein Lakzian

The aim of this paper is to generalize some fixed point theorems in the class of convex contraction of order on a complete suprametric space. Then, we will prove that the class…

quant-ph2025

Fixed Points in Quantum Metric Spaces: A Structural Advantage over Fuzzy Frameworks

Nicola Fabiano

We prove an existence and uniqueness theorem for fixed points of contraction maps in the framework of quantum metric spaces, where distinguishability is defined by the norm:…

quant-ph2025

On the Incompatibility of Quantum State Geometry and Fuzzy Metric Spaces: Three No-Go Theorems

Nicola Fabiano

We prove three structural impossibility results demonstrating that fuzzy metric spaces cannot capture essential features of quantum state geometry. First, we show they cannot model…

quant-ph2025

Quantum Metric Spaces: Replacing Fuzzy Metrics with the Hilbert Space Structure of Quantum States

Nicola Fabiano

Fuzzy metric spaces, grounded in t-norms and membership functions, have been widely proposed to model uncertainty in machine learning, decision systems, and artificial intelligence…

cs.CY2024★ 2 cited

AI Act and Large Language Models (LLMs): When critical issues and privacy impact require human and ethical oversight

Nicola Fabiano

The imposing evolution of artificial intelligence systems and, specifically, of Large Language Models (LLM) makes it necessary to carry out assessments of their level of risk and t…

cs.CR2021

The approach with the Data Protection and Privacy Relationships Model (DAPPREMO)

Nicola Fabiano

We describe the Data Protection and Privacy Relationships Model (DAPPREMO), which is based on the set theory, considering that both the data protection and privacy regulation and E…

hep-ph2010

Bound states of UED level-1 KK quarks at the Linear Collider

O. Panella, N. Fabiano

We study the formation and detection at the next linear collider of bound states of level-1 quark Kaluza-Klein excitations within a scenario of universal e…

hep-ph2008★ 8 cited

Threshold production of meta-stable bound states of Kaluza Klein excitations in Universal Extra Dimensions

Nicola Fabiano, Orlando Panella

We study the formation and detection at the next linear e^+e^- collider of bound states of level-1 quark Kaluza-Klein excitations B_KK within a scenario of universal extra-dimensio…

hep-ph2005★ 4 cited

Sleptonium at the linear collider and the slepton co-next-to-lightest supersymmetric particle scenario in gauge mediated symmetry breaking models

Nicola Fabiano, Orlando Panella

We discuss the possibility of formation and subsequent detection of a supersymmetric bound state composed of a slepton--antislepton pair at the next linear collider. The Green func…

hep-ph2002★ 13 cited

etab Decay into Two Photons

Nicola Fabiano

We discuss the theoretical predictions for the two photon decay width of the pseudoscalar etab meson. Predictions from potential models are examined. It is found that various model…

hep-ph2002★ 11 cited

Two Photon Width of eta_c (paper version)

Nicola Fabiano, Giulia Pancheri

We discuss the measured partial width of the pseudoscalar charmonium state eta_c into two photons. Predictions from potential models are examined and compared with experimental val…

hep-ph2001★ 1 cited

Two photon width of eta_c

Nicola Fabiano, Giulia Pancheri

We discuss the measured partial width of the pseudoscalar charmonium state, , into two photons. Predictions from potential models are examined and compared with experimental v…

hep-ph2001★ 10 cited

Estimates of threshold cross section for stoponium production at e+e- colliders

Nicola Fabiano

We estimate the total ee to stoponium cross section near threshold for a Coulombic potential and compare it to the Born approximation. The effect of the beam energy spread for pres…

hep-ph1999★ 3 cited

Supersymmetric hadronic bound state detection at colliders

Mario Antonelli, Nicola Fabiano

We review the possibility of formation for a bound state made out of a stop quark and its antiparticle. The detection of a signal from its decay has been investigated for the case…

hep-ph1997★ 10 cited

Top Mesons

N. Fabiano

The possibility of formation for a bound state of a quark and a lighter one is investigated using potential model predictions and heavy quark effective theory approach. Resulti…