A. Giammanco
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View article: Determination of the spin and parity of all-charm tetraquarks
Determination of the spin and parity of all-charm tetraquarks Open
View article: Development of systematic uncertainty-aware neural network trainings for binned-likelihood analyses at the LHC
Development of systematic uncertainty-aware neural network trainings for binned-likelihood analyses at the LHC Open
We propose a neural network training method capable of accounting for the effects of systematic variations of the data model in the training process and describe its extension towards neural network multiclass classification. The procedure…
View article: Bias Reduction Using Expectation Maximization in the Optimization of an AI-Assisted Muon Tomography System
Bias Reduction Using Expectation Maximization in the Optimization of an AI-Assisted Muon Tomography System Open
View article: Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV Open
A search for new physics in events featuring a single photon and missing transverse momentum is presented, using proton-proton $\sqrt{s}$ = 13 TeV collision data corresponding to an integrated luminosity of 101 fb$^{-1}$ collected by the C…
View article: Search for a cH signal in the associated production of at least one charm quark with a Higgs boson in the diphoton decay channel in pp collisions at $$\sqrt{s}=13$$ TeV
Search for a cH signal in the associated production of at least one charm quark with a Higgs boson in the diphoton decay channel in pp collisions at $$\sqrt{s}=13$$ TeV Open
View article: A method for correcting the substructure of multiprong jets using the Lund jet plane
A method for correcting the substructure of multiprong jets using the Lund jet plane Open
A bstract Many analyses at the CERN LHC exploit the substructure of jets to identify heavy resonances produced with high momenta that decay into multiple quarks and/or gluons. This paper presents a new technique for correcting the substruc…
View article: Development and performance analysis of glass-based gas-tight RPCs for muography applications
Development and performance analysis of glass-based gas-tight RPCs for muography applications Open
To achieve high-resolution muography of compact targets in scenarios with complex logistical constraints, we are developing a portable muon detector system utilizing glass Resistive Plate Chambers (RPCs). Although RPCs are well understood …
View article: Performance of heavy-flavour jet identification in Lorentz-boosted topologies in proton-proton collisions at √( <i>s</i> ) = 13 TeV
Performance of heavy-flavour jet identification in Lorentz-boosted topologies in proton-proton collisions at √( <i>s</i> ) = 13 TeV Open
Measurements in the highly Lorentz-boosted regime provoke increased interest in probing the Higgs boson properties and in searching for particles beyond the standard model at the LHC. In the CMS Collaboration, various boosted-object taggin…
View article: Search for top squarks in final states with many light-flavor jets and 0, 1, or 2 charged leptons in proton-proton collisions at $$\sqrt{s}=13$$ TeV
Search for top squarks in final states with many light-flavor jets and 0, 1, or 2 charged leptons in proton-proton collisions at $$\sqrt{s}=13$$ TeV Open
View article: Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at $$\sqrt{s}=13$$ TeV
Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at $$\sqrt{s}=13$$ TeV Open
A bstract A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a τ lepton. The data from proton-proton collisions at the center-of-mass energy of 13 TeV were collected by the CM…
View article: Measurement of the ratio of the B$_\mathrm{c}^+$ $\to$ J/$ψ$$τ^+ν_τ$ and B$_\mathrm{c}^+$ $\to$ J/$ψ$ $μ^+ν_μ$ branching fractions using three-prong $τ$ lepton decays
Measurement of the ratio of the B$_\mathrm{c}^+$ $\to$ J/$ψ$$τ^+ν_τ$ and B$_\mathrm{c}^+$ $\to$ J/$ψ$ $μ^+ν_μ$ branching fractions using three-prong $τ$ lepton decays Open
The ratio between the B$_\mathrm{c}^+$ $\to$ J/$ψ$$τ^+ν_τ$ and B$_\mathrm{c}^+$ $\to$ J/$ψ$$μ^+ν_μ$ branching fractions is measured using a data sample of proton-proton collisions collected by CMS at a center-of-mass energy of 13 TeV in th…
View article: Search for dark matter produced in association with a Higgs boson decaying to a τ lepton pair in proton-proton collisions at $$\sqrt{s}=13$$ TeV
Search for dark matter produced in association with a Higgs boson decaying to a τ lepton pair in proton-proton collisions at $$\sqrt{s}=13$$ TeV Open
A bstract A search for dark matter particles produced in association with a Higgs boson decaying into a pair of τ leptons is performed using data collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detec…
View article: Evaluation of 3D pixel silicon sensors for the CMS Phase-2 Inner Tracker
Evaluation of 3D pixel silicon sensors for the CMS Phase-2 Inner Tracker Open
The high-luminosity upgrade of the CERN LHC requires the replacement of the CMS tracking detector to cope with the increased radiation fluence while maintaining its excellent performance. An extensive R\&D program, aiming at using 3D pixel…
View article: Search for the Rare Decay <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup><mml:msup><mml:mrow><mml:mi>μ</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> in Proton-Proton Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:mi>s</mml:mi></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13.6</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>
Search for the Rare Decay in Proton-Proton Collisions at Open
A search for the rare decay D0→μ+μ− is reported using proton-proton collision events at s=13.6 TeV collected by the CMS detector in 2022–2023, corresponding to an integrated luminosity of 64.5 fb−1. This is the first analysis to use a ne…
View article: Search for a heavy pseudoscalar Higgs boson decaying to a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons in proton-proton collisions at $$\sqrt{s}=13$$ TeV
Search for a heavy pseudoscalar Higgs boson decaying to a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons in proton-proton collisions at $$\sqrt{s}=13$$ TeV Open
A bstract A search for a heavy pseudoscalar Higgs boson, A, decaying to a 125 GeV Higgs boson h and a Z boson is presented. The h boson is identified via its decay to a pair of tau leptons, while the Z boson is identified via its decay to …
View article: Wasserstein normalized autoencoder for anomaly detection
Wasserstein normalized autoencoder for anomaly detection Open
A novel anomaly detection algorithm is presented. The Wasserstein normalized autoencoder (WNAE) is a normalized probabilistic model that minimizes the Wasserstein distance between the learned probability distribution -- a Boltzmann distrib…
View article: Observation of long-range collective flow in OO and NeNe collisions and implications for nuclear structure studies
Observation of long-range collective flow in OO and NeNe collisions and implications for nuclear structure studies Open
The long-range collective flow of particles produced in oxygen-oxygen (OO) and neon-neon (NeNe) collisions is measured with the CMS detector at the CERN LHC. The data samples were collected at a center-of-mass energy per nucleon pair of 5.…
View article: Vector boson scattering and anomalous quartic couplings in final states with $\ellν$qq or $\ell\ell$qq plus jets using proton-proton collisions at $\sqrt{s}$ = 13 TeV
Vector boson scattering and anomalous quartic couplings in final states with $\ellν$qq or $\ell\ell$qq plus jets using proton-proton collisions at $\sqrt{s}$ = 13 TeV Open
A measurement is presented of the electroweak vector boson scattering production of ZV (V = W, Z) boson pairs associated with two jets in proton-proton collisions at a center-of-mass energy of 13 TeV. The data, corresponding to an integrat…
View article: Fast, accurate, and precise detector simulation with vision transformers
Fast, accurate, and precise detector simulation with vision transformers Open
The speed and fidelity of detector simulations in particle physics pose compelling questions about LHC analysis and future colliders. The sparse high-dimensional data, combined with the required precision, provide a challenging task for mo…
View article: Observation of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Λ</mml:mi></mml:math> Hyperon Local Polarization in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math>-Pb Collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>8.16</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math>
Observation of Hyperon Local Polarization in -Pb Collisions at Open
The polarization of the Λ and Λ¯ hyperons along the beam direction has been measured in proton-lead (p-Pb) collisions at a center-of-mass energy per nucleon pair of 8.16 TeV. The data were obtained with the CMS detector at the LHC and corr…
View article: Search for dark matter production in association with a single top quark in proton-proton collisions at $$\sqrt{{\varvec{s}}}=13$$ TeV
Search for dark matter production in association with a single top quark in proton-proton collisions at $$\sqrt{{\varvec{s}}}=13$$ TeV Open
A bstract A search for the production of a single top quark in association with invisible particles is performed using proton-proton collision data collected with the CMS detector at the LHC at $$\sqrt{s}=13$$ TeV, corresponding to an inte…
View article: Search for resonances decaying to an anomalous jet and a Higgs boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Search for resonances decaying to an anomalous jet and a Higgs boson in proton-proton collisions at $\sqrt{s}$ = 13 TeV Open
This paper presents a search for new physics through the process where a new massive particle, X, decays into a Higgs boson and a second particle, Y. The Higgs boson subsequently decays into a bottom quark-antiquark pair, reconstructed as …
View article: Measurements of ttW differential cross sections and the leptonic charge asymmetry at $\sqrt{s}$ = 13 TeV
Measurements of ttW differential cross sections and the leptonic charge asymmetry at $\sqrt{s}$ = 13 TeV Open
Measurements of properties of top quark-antiquark pair production in association with a W boson in proton-proton collisions at a center-of-mass energy of 13 TeV are presented, using a data sample corresponding to an integrated luminosity o…
View article: Measurements of inclusive and differential Higgs boson production cross sections at $$\sqrt{\text{s}}=13.6$$ TeV in the H → γγ decay channel
Measurements of inclusive and differential Higgs boson production cross sections at $$\sqrt{\text{s}}=13.6$$ TeV in the H → γγ decay channel Open
A bstract Inclusive and differential cross sections for Higgs boson production in proton-proton collisions at a centre-of-mass energy of 13.6 TeV are measured using data collected with the CMS detector at the LHC in 2022, corresponding to …
View article: Muon tomography for cultural heritage objects
Muon tomography for cultural heritage objects Open
Cultural heritage conservation increasingly relies on non-destructive techniques and imaging methods based on the absorption or scattering of photons (X or γ-rays) or neutrons. While these techniques offer excellent imaging capabilities an…
View article: Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition
Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition Open
Despite the f 0 (980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( $${{\rm{q}}}\overline{{{\rm{q}}}}$$ ) meson, a tetraquark ( …
View article: Search for vector-like leptons with long-lived particle decays in the CMS muon system in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV
Search for vector-like leptons with long-lived particle decays in the CMS muon system in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV Open
View article: Search for dark matter produced in association with one or two top quarks in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV
Search for dark matter produced in association with one or two top quarks in proton-proton collisions at $$\sqrt{\text{s}}$$ = 13 TeV Open
View article: Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4$τ$ and 2$μ$2$τ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Search for light pseudoscalar boson pairs produced from Higgs boson decays using the 4$τ$ and 2$μ$2$τ$ final states in proton-proton collisions at $\sqrt{s}$ = 13 TeV Open
A search for a pair of light pseudoscalar bosons (a$_1$) produced in the decay of the 125 GeV Higgs boson is presented. The analysis examines decay modes where one a$_1$ decays into a pair of tau leptons and the other decays into either an…
View article: Search for b hadron decays to long-lived particles in the CMS endcap muon detectors
Search for b hadron decays to long-lived particles in the CMS endcap muon detectors Open
A search for long-lived particles originating from the decay of b hadrons produced in proton-proton collisions with a center-of-mass energy of 13 TeV at the LHC is presented. The analysis is performed on a data set recorded in 2018, corres…