A5077095348- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Cosmology and Gravitation Theories
- High-Energy Particle Collisions Research
- Quantum Mechanics and Applications
- Particle Detector Development and Performance
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Relativity and Gravitational Theory
- Biofield Effects and Biophysics
- Noncommutative and Quantum Gravity Theories
- Computational Physics and Python Applications
- Quantum Information and Cryptography
- Pulsars and Gravitational Waves Research
- Superconducting Materials and Applications
- Quantum and Classical Electrodynamics
- Quantum Computing Algorithms and Architecture
- Muon and positron interactions and applications
- Distributed and Parallel Computing Systems
- Quantum, superfluid, helium dynamics
- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- International Science and Diplomacy
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2014-2024
University of Trieste
2014-2024
Institute for Fundamental Physics of the Universe
2020
Scuola Internazionale Superiore di Studi Avanzati
1999-2018
European Organization for Nuclear Research
1993-1995
Novo Nordisk (Denmark)
1990
Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
1990
Joint Institute for Nuclear Research
1988-1989
University of Virginia
1986-1988
The measurement of quantum entanglement can provide a new and most sensitive probe to physics beyond the Standard Model. We use concurrence top-quark pair spin states produced at colliders constrain magnetic dipole term in coupling between top quark gluons, that $\tau$-lepton pairs bound contact interactions or two-photons from decay Higgs boson trying distinguish CP-even odd couplings. These four examples show power approach as well its limitations. differences production cross sections...
The study of entanglement in particle physics has been gathering pace the past few years. It is a new field that providing important results about possibility detecting and testing Bell inequality at colliders for final states as diverse top-quark, τ-lepton pairs Λ-baryons, massive gauge bosons vector mesons. In this review, after presenting definitions, tools basic are necessary understanding these developments, we summarize main findings—as published by beginning year 2024—including...
Correlations between the spins of top-quark pairs produced at a collider can be used to probe quantum entanglement energies never explored so far. We show how measurement single observable provide test violation Bell inequality 98% C.L. with statistical uncertainty data already collected Large Hadron Collider, and 99.99% higher luminosity next run. Detector acceptance, efficiency, migration effects are taken into account. The relies on spin correlations alone does not require determination...
This note proposes common standards and prescriptions for the effective-field-theory interpretation of top-quark measurements at LHC.
Abstract Quantum entanglement of weak interaction gauge bosons produced at colliders can be explored by computing the corresponding polarization density matrix. To this end, we consider Higgs boson decays $$H\rightarrow W W^*$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>H</mml:mi> <mml:mo>→</mml:mo> <mml:mi>W</mml:mi> <mml:msup> <mml:mo>∗</mml:mo> </mml:msup> </mml:mrow> </mml:math> and Z Z^*$$ <mml:mi>Z</mml:mi> , in which $$W^*$$ $$Z^*$$ are off-shell...
We present a feasibility study to probe quantum entanglement and Bell inequality violation in the process <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi mathvariant="normal">e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi mathvariant="normal">e</a:mi><a:mo>−</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>τ</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>τ</a:mi><a:mo>−</a:mo></a:msup></a:math> at center-of-mass energy of <f:math...
The violation of the Bell inequality is one hallmarks quantum mechanics and can be used to rule out local deterministic alternative descriptions. We utilize data analysis published by LHCb Collaboration on helicity amplitudes for decay <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>B</a:mi><a:mn>0</a:mn></a:msup><a:mo stretchy="false">→</a:mo><a:mi>J</a:mi><a:mo>/</a:mo><a:mi>ψ</a:mi><a:msup><a:mi>K</a:mi><a:mo>*</a:mo></a:msup><a:mo...
A bstract Quantum tomography provides the full reconstruction of density matrix a state. We use it to study Higgs boson decay into weak gauge bosons. Anomalous couplings beyond Standard Model can be constrained by means observables easily defined in terms polarization matrix. describe strategy based on three that together provide most stringent limits. Two these are linked entanglement between polarizations two bosons, other is CP-odd combinations one momentum and polarizations. find for Z...
The real part of epsilon'/epsilon measures direct CP violation in the decays neutral kaons two pions. It is a fundamental quantity which has justly attracted great deal theoretical as well experimental work. Its determination may answer question whether present only mass matrix (the superweak scenario) or also at work directly decays. After brief historical summary, we discuss and expected sensitivities. In light these, come to problem estimating standard model. We review (circa 1998) status...
We study the invisible decay of neutral hadrons in a representative model dark sector. The mesons ${K}_{L}$ and ${B}^{0}$ into sector with branching rates that can be at current experimental limits. neutron decays rate could either explain lifetime puzzle (although only for an extreme choice parameters fine-tuned value masses) or just above limit its (${\ensuremath{\tau}}_{N}^{\mathrm{inv}}\ensuremath{\gtrsim}{10}^{29}\text{ }\text{ }\mathrm{years}$) if kinematically allowed. These ordinary...
A bstract Asymptotically safe extensions of the Standard Model have been searched for by adding vector-like fermions charged under gauge group and having Yukawa-like interactions with new scalar fields. Here we study corresponding renormalization β -functions to next next-to-next leading order in perturbative expansion, varying number extra representations they carry. We test fixed points against various criteria perturbativity single out those that are potentially viable. show all candidate...
In the path towards a muon collider with center of mass energy 10 TeV or more, stage at 3 emerges as an appealing option. Reviewing physics potential such is main purpose this document. order to outline progression performances across stages, few sensitivity projections for higher are also presented. There many opportunities probing new collider. Some them in common extensively documented case CLIC stage, and include measuring Higgs trilinear coupling testing possible composite nature boson...
The experimental data on the helicity amplitudes of charmonium decays allow us to measure entanglement in final state spin correlations and test possible violations Bell inequality. We find that inequality is violated with a significance <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>5</a:mn><a:mi>σ</a:mi></a:mrow></a:math> or more <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
The large number of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>τ</a:mi></a:mrow></a:math> leptons available at the Belle II experiment makes it possible to study their properties and extent compositeness. We propose a strategy that relies on three observables defined in terms elements polarization density matrix produced <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>τ</c:mi></c:math> pairs, which we obtain via quantum...
Quantum information methods have been brought to bear on high-energy physics, including the study of entanglement and Bell nonlocality in collider experiments. observables also employed constrain possible new physics effects. We improve this point by introducing quantum tools routinely used compare states: trace distance fidelity. find that former outperforms other considered literature and, together with cross section, yields strongest bounds departures from Standard Model. The power...