Search Results - "Ketzer, B."
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Determination of the Pole Position of the Lightest Hybrid Meson Candidate
Published in Physical review letters (01-02-2019)“…Mapping states with explicit gluonic degrees of freedom in the light sector is a challenge, and has led to controversies in the past. In particular, the…”
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Three-body scattering: ladders and resonances
Published in The journal of high energy physics (01-08-2019)“…A bstract We discuss unitarity constraints on the dynamics of a system of three interacting particles. We show how the short-range interaction that describes…”
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Search for Invisible Decays of Sub-GeV Dark Photons in Missing-Energy Events at the CERN SPS
Published in Physical review letters (06-01-2017)“…We report on a direct search for sub-GeV dark photons (A^{'}), which might be produced in the reaction e^{-}Z→e^{-}ZA^{'} via kinetic mixing with photons by…”
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Design of beam optics for RF-separated kaon and antiproton beams in the M2 beam line of the CERN North Area
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-03-2023)“…The present contribution reviews the principle of RF separation and explains its dependence on different parameters of beam optics and hardware. The first…”
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Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel
Published in The European physical journal. C, Particles and fields (01-10-2021)“…We report the results of a search for a new vector boson ( A ′ ) decaying into two dark matter particles χ 1 χ 2 of different mass. The heavier χ 2 particle…”
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The XYU-GEM: Ambiguity-free coordinate readout of the Gas Electron Multiplier
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-07-2023)“…We describe the development of a position-sensitive Gas Electron Multiplier detector prototype, providing for each ionizing event three coordinates: the…”
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Virtual Flux Sensorless Control for Shunt Active Power Filters With Quasi-Resonant Compensators
Published in IEEE transactions on power electronics (01-07-2016)“…This paper presents a sensorless control strategy for pulsewidth modulated active filters. The complete solution uses only two current sensors, which are…”
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A novel generic framework for track fitting in complex detector systems
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-08-2010)“…This paper presents a novel framework for track fitting which is usable in a wide range of experiments, independent of the specific event topology, detector…”
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Hunting down the X17 boson at the CERN SPS
Published in The European physical journal. C, Particles and fields (01-12-2020)“…Recently, the ATOMKI experiment has reported new evidence for the excess of e + e - events with a mass ∼ 17 MeV in the nuclear transitions of 4 He, that they…”
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First constraints on the Lμ− Lτ explanation of the muon g-2 anomaly from NA64-e at CERN
Published in The journal of high energy physics (23-07-2024)“…A bstract The inclusion of an additional U(1) gauge L μ − L τ symmetry would release the tension between the measured and the predicted value of the anomalous…”
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Effect of grazing intensity on evapotranspiration in the semiarid grasslands of Inner Mongolia, China
Published in Journal of arid environments (01-08-2012)“…The eddy covariance technique was used to measure evapotranspiration (ET) at four different grazing intensity sites to investigate the grazing effects on ET in…”
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High purity 100 GeV electron identification with synchrotron radiation
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-09-2017)“…In high energy experiments such as active beam dump searches for rare decays and missing energy events, the beam purity is a crucial parameter. In this paper…”
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Simulation of space-charge effects in an ungated GEM-based TPC
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-08-2013)“…A fundamental limit to the application of Time Projection Chambers (TPCs) in high-rate experiments is the accumulation of slowly drifting ions in the active…”
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Performance of Multiplexed XY Resistive Micromegas detectors in a high intensity beam
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-2018)“…We present the performance of multiplexed XY resistive Micromegas detectors tested in the CERN SPS 100 GeV/c electron beam at intensities up to…”
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Construction, test and commissioning of the triple-gem tracking detector for compass
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-09-2002)“…The Small Area Tracking system of the COMPASS experiment at CERN includes a set of 20 large area, fast position-sensitive Gas Electron Multiplier detectors,…”
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Performance of triple GEM tracking detectors in the COMPASS experiment
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-12-2004)“…COMPASS is a high-luminosity fixed target experiment at CERN's SPS, which has been taking data with a 160 GeV / c muon beam since 2001. The tracking of charged…”
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Design and construction of the fast photon detection system for COMPASS RICH-1
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-04-2010)“…New photon detectors, based on the use of multi-anode photo-multiplier tubes coupled to individual lens telescopes and read out with a dedicated read-out…”
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Sensorless Control Technique for PWM Rectifiers With Voltage Disturbance Rejection and Adaptive Power Factor
Published in IEEE transactions on industrial electronics (1982) (01-02-2015)“…This paper presents a control strategy for pulsewidth-modulation rectifiers without grid voltage sensors employing a current-shaping strategy. The proposed…”
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First measurement of dE/dx with a GEM-based TPC
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (11-02-2014)“…In this work we present the first measurement of the specific energy loss (dE/dx) and an analysis of the resulting charged-particle identification (PID)…”
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