N. Konstantinidis
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View article: DECADE: Decorrelated anomaly detection triggers to enhance the low-mass discovery potential of the LHC
DECADE: Decorrelated anomaly detection triggers to enhance the low-mass discovery potential of the LHC Open
At the ATLAS and CMS experiments at CERN's Large Hadron Collider, the rate of proton-proton collisions far exceeds the rate at which data can be recorded. A real-time event selection process, or "trigger", is needed to ensure that the data…
View article: Local variations of the magnetization effected by an external field in molecular rings
Local variations of the magnetization effected by an external field in molecular rings Open
It is shown that an external magnetic field generates local variations of the classical ground-state magnetization in molecular rings of antiferromagnetic icosahedra with isotropic spin interactions. The magnetic response is characterized …
View article: Origin of the classical magnetization discontinuities of the dodecahedron
Origin of the classical magnetization discontinuities of the dodecahedron Open
The classical antiferromagnetic Heisenberg model on the dodecahedron has been shown to have three magnetization discontinuities in an external field. Here it is shown that the highest-field discontinuity can be directly traced back to the …
View article: CTD2022: Graph Neural Networks for Pattern Recognition & Fast Track Finding
CTD2022: Graph Neural Networks for Pattern Recognition & Fast Track Finding Open
Particle track reconstruction is a challenging problem in modern high-energy physics detectors where existing algorithms do not scale well with a growing data stream. The development of novel methods incorporating machine learning techniqu…
View article: Competition between frustration and spin dimensionality in the classical antiferromagnetic $n$-vector model with arbitrary $n$
Competition between frustration and spin dimensionality in the classical antiferromagnetic $n$-vector model with arbitrary $n$ Open
A new method to characterize the strength of magnetic frustration is proposed by calculating the minimum dimensionality of the absolute ground states of the classical nearest-neighbor antiferromagnetic n -vector model with arbitrary n …
View article: Report on scipost_202212_00013v2
Report on scipost_202212_00013v2 Open
The quantum antiferromagnetic Heisenberg model on the fullerene C 60 in a magnetic field has 4s ground-state magnetization discontinuities with ∆S z = 2 as a function of the spin quantum number s that disappear at the classical limit.The m…
View article: Report on scipost_202212_00013v2
Report on scipost_202212_00013v2 Open
The quantum antiferromagnetic Heisenberg model on the fullerene C 60 in a magnetic field has 4s ground-state magnetization discontinuities with ∆S z = 2 as a function of the spin quantum number s that disappear at the classical limit.The m…
View article: Report on scipost_202212_00013v1
Report on scipost_202212_00013v1 Open
The antiferromagnetic Heisenberg model on the fullerene C 60 in a magnetic field has 4s ground-state magnetization discontinuities as a function of the spin quantum number s that disappear at the classical limit.The molecule can be seen as…
View article: Report on scipost_202212_00013v1
Report on scipost_202212_00013v1 Open
The antiferromagnetic Heisenberg model on the fullerene C 60 in a magnetic field has 4s ground-state magnetization discontinuities as a function of the spin quantum number s that disappear at the classical limit.The molecule can be seen as…
View article: Report on scipost_202212_00013v1
Report on scipost_202212_00013v1 Open
The antiferromagnetic Heisenberg model on the fullerene C 60 in a magnetic field has 4s ground-state magnetization discontinuities as a function of the spin quantum number s that disappear at the classical limit.The molecule can be seen as…
View article: Probing Electroweak Phase Transition at CEPC via Exotic Higgs Decays with 4b Final States
Probing Electroweak Phase Transition at CEPC via Exotic Higgs Decays with 4b Final States Open
A strong first-order electroweak phase transition (EWPT) can be induced by light new physics weakly coupled to the Higgs. This study focuses on a scenario in which the first-order EWPT is driven by a light scalar s with a mass between 15 a…
View article: $\mathbfΔ$S$^z$=2 quantum magnetization discontinuities proportional in number to the spin s in C$_{60}$: Origin and the role of symmetry
$\mathbfΔ$S$^z$=2 quantum magnetization discontinuities proportional in number to the spin s in C$_{60}$: Origin and the role of symmetry Open
The quantum antiferromagnetic Heisenberg model on the fullerene C$_{60}$ in a magnetic field has $4s$ ground-state magnetization discontinuities with $ΔS^z=2$ as a function of the spin quantum number $s$ that disappear at the classical lim…
View article: Report on scipost_202208_00004v3
Report on scipost_202208_00004v3 Open
A new method to characterize the strength of magnetic frustration is proposed by calculating the minimum dimensionality of the absolute ground states of the classical nearestneighbor antiferromagnetic n-vector model with arbitrary n.Platon…
View article: Report on scipost_202208_00004v2
Report on scipost_202208_00004v2 Open
A new method to characterize the strength of magnetic frustration is proposed by calculating the minimum dimensionality of the absolute ground state of the classical nearestneighbor antiferromagnetic n-vector model with arbitrary n.Platoni…
View article: Classical magnetization of a four-dimensional Platonic solid
Classical magnetization of a four-dimensional Platonic solid Open
The 600-cell is a regular 4-polytope that is a four-dimensional analog of a Platonic solid. Three-dimensional Platonic solids with icosahedral $I_h$-symmetry have been shown to have a discontinuous ground-state magnetization response in an…
View article: Competition between frustration and spin dimensionality in the classical antiferromagnetic $n$-vector model with arbitrary $n$
Competition between frustration and spin dimensionality in the classical antiferromagnetic $n$-vector model with arbitrary $n$ Open
A new method to characterize the strength of magnetic frustration is proposed by calculating the minimum dimensionality of the absolute ground states of the classical nearest-neighbor antiferromagnetic $n$-vector model with arbitrary $n$. …
View article: Search for a light muon-philic $Z^\prime$ with the NA64-$e$ experiment at CERN
Search for a light muon-philic $Z^\prime$ with the NA64-$e$ experiment at CERN Open
The extension of Standard Model made by inclusion of additional $U(1)$ gauge $L_μ-L_τ$ symmetry can explain the difference between the measured and the predicted value of the muon magnetic moment and solve the tension in $B$ meson decays. …
View article: Study of Electroweak Phase Transition in Exotic Higgs Decays at the CEPC
Study of Electroweak Phase Transition in Exotic Higgs Decays at the CEPC Open
A strong first-order electroweak phase transition (EWPT) can be induced by light new physics weakly coupled to the Higgs. This study focuses on a scenario in which the first-order EWPT is driven by a light scalar $s$ with a mass between 15…
View article: Inspecting manufacturing precision of 3D printed concrete parts based on geometric dimensioning and tolerancing
Inspecting manufacturing precision of 3D printed concrete parts based on geometric dimensioning and tolerancing Open
The additive manufacture of parts using extrusion-based techniques such as 3D Concrete Printing (3DCP) offers an alternative to traditional moulding processes. The precision to which the desired shape can be produced, however, is limited b…
View article: Phase-II Associative Memory ASIC Specifications
Phase-II Associative Memory ASIC Specifications Open
This documents defines the specifications for the Associative Memory ASIC for Phase-II. The work-flow toward the final ASIC is organized in the following three steps • AM08 prototype: small area MPW prototype to test all the full custom fe…
View article: Event visualization in ATLAS
Event visualization in ATLAS Open
At the beginning, HEP experiments made use of photographical images both to record and store experimental data and to illustrate their findings. Then the experiments evolved and needed to find ways to visualize their data. With the availab…
View article: Capsule depolymerase activity of phages infecting the Acinetobacter baumannii-calcoaceticus complex
Capsule depolymerase activity of phages infecting the Acinetobacter baumannii-calcoaceticus complex Open
To be able to enter and replicate in exopolysaccharide (EPS) slime or capsule surrounded bacteria, bacteriophages (phages) have evolved the ability to overcome the EPS structure by producing virion-associated proteins with polysaccharide d…
View article: Event visualisation in ATLAS: current software technologies, future prospects and trends
Event visualisation in ATLAS: current software technologies, future prospects and trends Open
At the beginning, HEP experiments made use of photographical images both to record and store experimental data and to illustrate their findings. Then the experiments evolved and needed to find ways to visualize their data. With the availab…
View article: Capped carbon nanotubes with a number of ground state magnetization discontinuities increasing with their size
Capped carbon nanotubes with a number of ground state magnetization discontinuities increasing with their size Open
The classical ground state magnetic response of fullerene molecules that resemble capped carbon nanotubes is calculated within the framework of the antiferromagnetic Heisenberg model. It is found that the magnetic response depends subtly o…
View article: Thermalization away from integrability and the role of operator off-diagonal elements
Thermalization away from integrability and the role of operator off-diagonal elements Open
We investigate the rate of thermalization of local operators in the one-dimensional anisotropic antiferromagnetic Heisenberg model with next-nearest neighbor interactions that break integrability. This is done by calculating the scaling of…
View article: Thermalization of a Dimerized Antiferromagnetic Spin Chain
Thermalization of a Dimerized Antiferromagnetic Spin Chain Open
Thermalization is investigated for the one-dimensional anisotropic\nantiferromagnetic Heisenberg model with dimerized nearest-neighbor interactions\nthat break integrability. For this purpose the time evolution of local operator\nexpectati…
View article: Antiferromagnetic Heisenberg model on the icosahedron: influence of connectivity and the transition from the classical to the quantum limit
Antiferromagnetic Heisenberg model on the icosahedron: influence of connectivity and the transition from the classical to the quantum limit Open
The antiferromagnetic Heisenberg model on the icosahedron presents unconventional properties at the classical and quantum level, which originate in the frustrated nature of the interactions between the spins. Here we examine the importance…