Publications (35)
Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
The ATLAS Collaboration, G. Aad, E. Abat +2604
A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together w…
The Microsoft 2016 Conversational Speech Recognition System
W. Xiong, J. Droppo, X. Huang +5
We describe Microsoft's conversational speech recognition system, in which we combine recent developments in neural-network-based acoustic and language modeling to advance the stat…
What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches
S. Afach, D. Aybas Tumturk, H. Bekker +50
Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could…
Resistive Plate Chamber Digitization in a Hadronic Shower Environment
Z. Deng, Y. Li, Y. Wang +125
The CALICE Semi-Digital Hadron Calorimeter (SDHCAL) technological prototype is a sampling calorimeter using Glass Resistive Plate Chamber detectors with a three-threshold readout a…
Investigation of two-photon 2s -> 1s decay in one-electron and one-muon ions
V. A. Knyazeva, K. N. Lyashchenko, M. Zhang +2
We have studied the radiative decay of the 2s state of one-electron and one-muon ions, where the two-photon mechanism plays an important role. Due to the nuclear size corrections t…
Electron-ion Recombination of Fe X forming Fe IX and of Fe XI forming Fe X: Laboratory Measurements and Theoretical Calculations
M. Lestinsky, N. R. Badnell, D. Bernhardt +12
We have measured electron-ion recombination for Fe forming Fe and for Fe forming Fe using merged beams at the TSR heavy-ion storage-ring in Heidelberg.…
Performance of the CMS High Granularity Calorimeter prototype to charged pion beams of 20300 GeV/c
B. Acar, G. Adamov, C. Adloff +454
The upgrade of the CMS experiment for the high luminosity operation of the LHC comprises the replacement of the current endcap calorimeter by a high granularity sampling calorimete…
Shower development of particles with momenta from 15 GeV to 150 GeV in the CALICE scintillator-tungsten hadronic calorimeter
The CALICE collaboration, M. Chefdeville, Y. Karyotakis +178
We present a study of showers initiated by electrons, pions, kaons, and protons with momenta from 15 GeV to 150 GeV in the highly granular CALICE scintillator-tungsten analogue had…
Response of a CMS HGCAL silicon-pad electromagnetic calorimeter prototype to 20-300 GeV positrons
B. Acar, G. Adamov, C. Adloff +385
The Compact Muon Solenoid Collaboration is designing a new high-granularity endcap calorimeter, HGCAL, to be installed later this decade. As part of this development work, a protot…
Anomalous nuclear magnetic resonance spectra in BiSe nanowires
D. M. Nisson, A. P. Dioguardi, X. Peng +2
We report Bi nuclear magnetic resonance (NMR) spectra of in nanowires and single crystals of BiSe. Crystals were powdered to simulate the random orientation of the…
Photon Angular Distribution in Two-Photon Electron Capture by H-Like Uranium
K. N. Lyashchenko, O. Yu. Andreev, D. Yu
We present a comprehensive study of the angular distribution of photons emitted during the resonant two-photon electron capture by H-like uranium ions. Focusing on the energies of…
PFA Oriented ECAL Optimization for the CEPC
H. Zhao, M. Ruan, C. Fu +3
The design and optimization of the Electromagnetic Calorimeter (ECAL) are crucial for the Circular Electron Positron Collider (CEPC) project, a proposed future Higgs/Z factory. Fol…
Does the boson peak survive in an ultrathin oxide glass?
D. L. Cortie, M. J. Cyster, J. S. Smith +7
Bulk glasses exhibit extra vibrational modes at low energies, known as the boson peak. The microscopic dynamics in nanoscale alumina impact the performance of qubits and other supe…
Long-range interacting many-body systems with alkaline-earth-metal atoms
B. Olmos, D. Yu, Y. Singh +3
Alkaline-earth-metal atoms exhibit long-range dipolar interactions, which are generated via the coherent exchange of photons on the 3P_0-3D_1-transition of the triplet manifold. In…
Results of a Search for Cold Flows of Dark Matter Axions
L. Duffy, P. Sikivie, D. B. Tanner +7
Theoretical arguments predict that the distribution of cold dark matter in spiral galaxies has peaks in velocity space associated with non-thermalized flows of dark matter particle…
Beam test performance of the highly granular SiW-ECAL technological prototype for the ILC
K. Kawagoe, Y. Miura, I. Sekiya +41
The technological prototype of the CALICE highly granular silicon-tungsten electromagnetic calorimeter (SiW-ECAL) was tested in a beam at DESY in 2017. The setup comprised seven la…
First results of the CALICE SDHCAL technological prototype
V. Buridon, C. Combaret, L. Caponetto +118
The CALICE Semi-Digital Hadronic Calorimeter (SDHCAL) prototype, built in 2011, was exposed to beams of hadrons, electrons and muons in two short periods in 2012 on two different b…
A demonstrator for a real-time AI-FPGA-based triggering system for sPHENIX at RHIC
J. Kvapil, G. Borca-Tasciuc, H. Bossi +28
The RHIC interaction rate at sPHENIX will reach around 3 MHz in pp collisions and requires the detector readout to reject events by a factor of over 200 to fit the DAQ bandwidth of…
Ab initio QED treatment of the two-photon annihilation of positrons with bound electrons
V. A. Zaytsev, A. V. Volotka, D. Yu +4
The process of a positron $\unicode{x2013}$ bound-electron annihilation with simultaneous emission of two photons is investigated theoretically. A fully relativistic formalism base…
SiW ECAL for future collider
V. Balagura, S. Bilokin, J. Bonis +29
Calorimeters with silicon detectors have many unique features and are proposed for several world-leading experiments. We discuss the tests of the first three 18x18 cm layers se…
Polarized Electrons Using the PWT RF Gun
J. E. Clendenin, R. Kirby, Y. Luo +2
Future colliders that require low-emittance highly-polarized electron beams are the main motivation for developing a polarized rf gun. However there are both technical and physics…
Photorecombination of berylliumlike Ti18+: Hyperfine quenching of dielectronic resonances
S. Schippers, E. W. Schmidt, D. Bernhardt +7
The photorecombination spectrum of 48Ti18+ was measured employing the merged electron-ion beams technique at a heavy-ion storage ring. The experimental electron-ion collision energ…
Low-Energy Excitations and Ground State Selection in Quantum Breathing Pyrochlore Antiferromagnet BaYbZnO
T. Haku, K. Kimura, Y. Matsumoto +10
We study low energy excitations in the quantum breathing pyrochlore antiferromagnet BaYbZnO by combination of inelastic neutron scattering (INS) and thermodynami…
The Relation of Thermal Fluctuation and Information-Entropy for One-Dimensional Rindler Oscillator
D. Yu, Y. -X. Gui, X. Ye
Within the framework of thermo-field-dynamics (TFD), the information-entropies associated with the measurements of position and momentum for one-dimensional Rindler oscillator are…
A Polarized Electron RF Photoinjector Using the Plane-Wave-Transformer (PWT) Design
J. E. Clendenin, R. E. Kirby, D. Yu +1
Polarized electron beams are now in routine use in particle accelerators for nuclear and high energy physics experiments. These beams are presently produced by dc-biased photoelect…
Construction and commissioning of CMS CE prototype silicon modules
B. Acar, G. Adamov, C. Adloff +327
As part of its HL-LHC upgrade program, the CMS Collaboration is developing a High Granularity Calorimeter (CE) to replace the existing endcap calorimeters. The CE is a sampling cal…
Commissioning of the highly granular SiW-ECAL technological prototype
S. Bilokin, J. Bonis, P. Cornebise +40
In this article we describe the commissioning and a first analysis of the the beam test performance of a small prototype of a highly granular silicon tungsten calorimeter. The prot…
Resonant elastic scattering of polarized electrons on H-like ions
D. M. Vasileva, K. N. Lyashchenko, A. B. Voitkiv +2
The polarization properties of the elastic electron scattering on H-like ions are investigated within the framework of the relativistic QED theory. The polarization properties are…
Achieving Human Parity in Conversational Speech Recognition
W. Xiong, J. Droppo, X. Huang +5
Conversational speech recognition has served as a flagship speech recognition task since the release of the Switchboard corpus in the 1990s. In this paper, we measure the human err…
The GRID and the Linux Farm at the RCF
A. Chan, R. Hogue, C. Hollowell +5
The emergence of the GRID architecture and related tools will have a large impact in the operation and design of present and future large clusters. We present here the ongoing effo…
Intelligent experiments through real-time AI: Fast Data Processing and Autonomous Detector Control for sPHENIX and future EIC detectors
J. Kvapil, G. Borca-Tasciuc, H. Bossi +30
This R\&D project, initiated by the DOE Nuclear Physics AI-Machine Learning initiative in 2022, leverages AI to address data processing challenges in high-energy nuclear experiment…
Storage-ring measurement of the hyperfine induced 47Ti18+(2s 2p 3P0 -> 2s2 1S0) transition rate
S. Schippers, E. W. Schmidt, D. Bernhardt +7
The hyperfine induced 2s 2p 3P0 > 2s2 1S0 transition rate AHFI in berylliumlike 47Ti18+ was measured. Resonant electron-ion recombination in a heavy-ion storage ring was employed t…
The DAQ system of the 12,000 Channel CMS High Granularity Calorimeter Prototype
B. Acar, G. Adamov, C. Adloff +327
The CMS experiment at the CERN LHC will be upgraded to accommodate the 5-fold increase in the instantaneous luminosity expected at the High-Luminosity LHC (HL-LHC). Concomitant wit…
Strong relativistic effect on (quasi)resonance electron-capture processes in non-symmetrical heavy ion-atom collisions
Y. S. Kozhedub, A. I. Bondarev, X. Cai +7
(Quasi)resonance electron-capture processes in non-symmetrical heavy ion-atom collisions are studied employing a semiclassical atomic Dirac-Fock-Stu…
Steady state properties of a driven atomic ensemble with non-local dissipation
B. Olmos, D. Yu, I. Lesanovsky
The steady state of a driven dense ensemble of two-level atoms is determined from the competition of coherent laser excitation and decay that acts in a correlated way on several at…