D. Schwarz
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View article: Search for charged-lepton flavour violation in top quark interactions with an up-type quark, a muon, and a τ lepton in proton-proton collisions at $$\sqrt{s}={13}$$ TeV
Search for charged-lepton flavour violation in top quark interactions with an up-type quark, a muon, and a τ lepton in proton-proton collisions at $$\sqrt{s}={13}$$ TeV Open
A bstract A search for charged-lepton flavour violation (CLFV) in top quark (t) production and decay is presented. The search uses proton-proton collision data corresponding to 138 fb − 1 collected with the CMS experiment at $$\sqrt{s}={13…
View article: Identification of tau leptons using a convolutional neural network with domain adaptation
Identification of tau leptons using a convolutional neural network with domain adaptation Open
A tau lepton identification algorithm, DeepTau , based on convolutional neural network techniques, has been developed in the CMS experiment to discriminate reconstructed hadronic decays of tau leptons (τ h ) from quark or gluon jets and el…
View article: A method for correcting the substructure of multiprong jets using the Lund jet plane
A method for correcting the substructure of multiprong jets using the Lund jet plane Open
A bstract Many analyses at the CERN LHC exploit the substructure of jets to identify heavy resonances produced with high momenta that decay into multiple quarks and/or gluons. This paper presents a new technique for correcting the substruc…
View article: Search for New Physics in Jet Multiplicity Patterns of Multilepton Events at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> <mml:mtext> </mml:mtext> <mml:mtext> </mml:mtext> <mml:mi>TeV</mml:mi> </mml:math>
Search for New Physics in Jet Multiplicity Patterns of Multilepton Events at Open
A first search for beyond the standard model physics in jet multiplicity patterns of multilepton events is presented, using a data sample corresponding to an integrated luminosity of 138 fb − 1 of 13 TeV proton-proton collisions …
View article: Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at $$\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$$ TeV Open
A bstract A first study is presented of the cross section for the scattering of same-sign W boson pairs via the detection of a τ lepton. The data from proton-proton collisions at the center-of-mass energy of 13 TeV were collected by the CM…
View article: Search for dark matter produced in association with a Higgs boson decaying to a τ lepton pair in proton-proton collisions at $$\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$$ TeV Open
A bstract A search for dark matter particles produced in association with a Higgs boson decaying into a pair of τ leptons is performed using data collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detec…
View article: Measurement of event shapes in minimum-bias events from proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> <mml:mo>=</mml:mo> <mml:mn>13</mml:mn> <mml:mtext> </mml:mtext> <mml:mtext> </mml:mtext> <mml:mi>TeV</mml:mi> </mml:math>
Measurement of event shapes in minimum-bias events from proton-proton collisions at Open
A measurement of event-shape variables is presented, using a data sample produced in a special run with approximately one inelastic proton-proton collision per bunch crossing. The data were collected with the CMS detector at a center-of-ma…
View article: Search for <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>γ</mml:mi> <mml:mi>H</mml:mi> </mml:math> production and constraints on the Yukawa couplings of light quarks to the Higgs boson
Search for production and constraints on the Yukawa couplings of light quarks to the Higgs boson Open
A search for γ H production is performed with data from the CMS experiment at the LHC corresponding to an integrated luminosity of 138 fb − 1 at a proton-proton center-of-mass collision energy of 13 TeV . The analysis f…
View article: Search for dark matter production in association with a single top quark in proton-proton collisions at $$\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$$ TeV, corresponding to an inte…
View article: Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition
Elliptic anisotropy measurement of the f0(980) hadron in proton-lead collisions and evidence for its quark-antiquark composition Open
Despite the f 0 (980) hadron having been discovered half a century ago, the question about its quark content has not been settled: it might be an ordinary quark-antiquark ( $${{\rm{q}}}\overline{{{\rm{q}}}}$$ ) meson, a tetraquark ( …
View article: How to unfold top decays
How to unfold top decays Open
Using unfolded top-quark decay data we can measure the top quark mass, as well as search for unexpected kinematic effects. We present a new generative unfolding method for the two tasks and show how they both benefit from unbinned, high-di…
View article: Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $$\sqrt{{s}_{\text{NN}}}$$ = 5.02 TeV
Measurement of light-by-light scattering and the Breit-Wheeler process, and search for axion-like particles in ultraperipheral PbPb collisions at $$\sqrt{{s}_{\text{NN}}}$$ = 5.02 TeV Open
A bstract Measurements of light-by-light scattering (LbL, γγ → γγ ) and the Breit-Wheeler process (BW, γγ → e + e − ) are reported in ultraperipheral PbPb collisions at a centre-of-mass energy per nucleon pair of 5.02 TeV. The data sample,…
View article: Probing Gluon Fluctuations in Nuclei with the First Energy-Dependent Measurement of Incoherent <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi><mml:mo>/</mml:mo><mml:mi>ψ</mml:mi></mml:math> Photoproduction in Ultraperipheral PbPb Collisions
Probing Gluon Fluctuations in Nuclei with the First Energy-Dependent Measurement of Incoherent Photoproduction in Ultraperipheral PbPb Collisions Open
Incoherent J/ψ photoproduction in heavy ion ultraperipheral collisions (UPCs) provides a sensitive probe of localized, fluctuating gluonic structures within heavy nuclei. This Letter reports the first measurement of the photon-nucleon cent…
View article: Unbinned inclusive cross-section measurements with machine-learned systematic uncertainties
Unbinned inclusive cross-section measurements with machine-learned systematic uncertainties Open
We introduce a novel methodology for addressing systematic uncertainties in unbinned inclusive cross-section measurements and related collider-based inference problems. Our approach incorporates known analytic dependencies on parameters of…
View article: Measurement of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi><mml:mi>W</mml:mi><mml:mi>Z</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Z</mml:mi><mml:mi>H</mml:mi></mml:math> Production Cross Sections at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn></mml:math> and 13.6 TeV
Measurement of and Production Cross Sections at and 13.6 TeV Open
A measurement is presented of the cross section in proton-proton collisions for the production of two W bosons and one Z boson. It is based on data recorded by the CMS experiment at the CERN LHC at center-of-mass energies s=13 and 13.6 TeV…
View article: Search for flavor-changing neutral current interactions of the top quark mediated by a Higgs boson in proton-proton collisions at 13 TeV
Search for flavor-changing neutral current interactions of the top quark mediated by a Higgs boson in proton-proton collisions at 13 TeV Open
A search for flavor-changing neutral current interactions of the top quark (t) and the Higgs boson (H) is presented. The search is based on proton-proton collision data collected in 2016–2018 at a center-of-mass energy of 13 TeV with the C…
View article: Evidence for Similar Collectivity of High Transverse-Momentum Particles in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math>-Pb and Pb-Pb Collisions
Evidence for Similar Collectivity of High Transverse-Momentum Particles in -Pb and Pb-Pb Collisions Open
Charged hadron elliptic anisotropies (v2) are presented over a wide transverse momentum (pT) range for proton-lead (pPb) and lead-lead (PbPb) collisions at nucleon-nucleon center-of-mass energies of 8.16 and 5.02 TeV, respectively. The dat…
View article: Bench to the Future: A Pastcasting Benchmark for Forecasting Agents
Bench to the Future: A Pastcasting Benchmark for Forecasting Agents Open
Forecasting is a challenging task that offers a clearly measurable way to study AI systems. Forecasting requires a large amount of research on the internet, and evaluations require time for events to happen, making the development of forec…
View article: Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>13</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:math>
Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at Open
A measurement of the Higgs boson mass and width via its decay to two Z bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of 138 fb−1 at a center-of-mass energy of …
View article: Using the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math> Boson as a Standard Candle to Reach the Top: Calibrating Energy-Correlator-Based Top Mass Measurements
Using the Boson as a Standard Candle to Reach the Top: Calibrating Energy-Correlator-Based Top Mass Measurements Open
The top quark mass is a key parameter of the standard model, yet measuring it precisely at the Large Hadron Collider (LHC) is challenging. Inspired by the use of standard candles in cosmology, we propose a novel energy correlator-based obs…
View article: Measurements of the Higgs boson production cross section in the four-lepton final state in proton-proton collisions at $$\sqrt{s}$$ = 13.6 TeV
Measurements of the Higgs boson production cross section in the four-lepton final state in proton-proton collisions at $$\sqrt{s}$$ = 13.6 TeV Open
A bstract The measurements of the Higgs boson (H) production cross sections performed by the CMS Collaboration in the four-lepton (4 ℓ, ℓ = e , μ) final state at a center-of-mass energy $$\sqrt{s}$$ = 13 . 6 TeV are presented. These measur…