569 Result(s)
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Article
Quick-scanning X-ray absorption fine structure beamline at SSRF
The layout and characteristics of the hard X-ray spectroscopy beamline (BL11B) at the Shanghai synchrotron radiation facility are described herein. BL11B is a bending-magnet beamline dedicated to conventional ...
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Article
Cross section determination of 27Al(n,2n)26Al reaction induced by 14-MeV neutrons uniting with D-T neutron activation and AMS techniques
Aluminum is the primary structural material in nuclear engineering, and its cross section induced by 14-MeV neutrons is of great significance. To address the issue of insufficient accuracy for the ...
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Open AccessImproved analysis of double \(J/\psi \) production in Z-boson decay
In this paper, we present an improved calculation for the decay rate of the rare Z-boson decay into \(J/\psi + J/\psi .\) ...
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Stepped-up development of accelerator mass spectrometry method for the detection of 60Fe with the HI-13 tandem accelerator
The Moon provides a unique environment for investigating nearby astrophysical events such as supernovae. Lunar samples retain valuable information from these events, via detectable long-lived “fingerprint” rad...
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Open AccessSearch for exotic decays of the Higgs boson to a pair of pseudoscalars in the \(\upmu \upmu \text{ b } \text{ b } \) and \(\uptau \uptau \text{ b } \text{ b } \) final states
A search for exotic decays of the Higgs boson ( \(\text {H}\) H ) with a mass...
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Article
LHAASO-KM2A detector simulation using Geant4
KM2A is one of the main sub-arrays of LHAASO, working on gamma ray astronomy and cosmic ray physics at energies above 10 TeV. Detector simulation is the important foundation for estimating detector performance...
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Open AccessSearch for \({{B} _{c} ^+} \!\rightarrow {{\pi } ^+} {\mu ^+\mu ^-} \) decays and measurement of the branching fraction ratio \({\mathcal {B}} ({{B} _{c} ^+} \!\rightarrow {\psi {(2S)}} {{\pi } ^+} )/{\mathcal {B}} ({{B} _{c} ^+} \!\rightarrow {{J \hspace{-1.66656pt}/\hspace{-1.111pt}\psi }} {{\pi } ^+} )\)
The first search for nonresonant \({{B} _{c} ^+} \!\rightarrow {{\pi } ^+} {\mu ^+\mu ^-} \) ...
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Article
FPGA-based position reconstruction method for neutron beam flux spatial distribution measurement in BNCT
A new measurement method for the spatial distribution of neutron beam flux in boron neutron capture therapy (BNCT) is being developed based on the two-dimensional Micromegas detector. To address the issue of l...
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Open AccessA precise measurement of the Z-boson double-differential transverse momentum and rapidity distributions in the full phase space of the decay leptons with the ATLAS experiment at \(\sqrt{s}=8\) TeV
This paper presents for the first time a precise measurement of the production properties of the Z boson in the full phase space of the decay leptons. This is in contrast to the many previous precise unfolded mea...
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The energy response of LaBr \(_{3}\) (Ce), LaBr \(_{3}\) (Ce,Sr), and NaI(Tl) crystals for GECAM
The GECAM series of satellites utilizes LaBr \(_3\) 3 ...
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Article
Nondestructive technique for identifying nuclides using neutron resonance transmission analysis at CSNS Back-n
Nondestructive and noninvasive neutron assays are essential applications of neutron techniques. Neutron resonance transmission analysis (NRTA) is a powerful nondestructive method for investigating the elementa...
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Open AccessMeasurement of the \(H \rightarrow \gamma \gamma \) and \(H \rightarrow ZZ^* \rightarrow 4 \ell \) cross-sections in pp collisions at \(\sqrt{s}=13.6\) TeV with the ATLAS detector
The inclusive Higgs boson production cross-section is measured in the di-photon and the \(ZZ^* \rightarrow 4 \ell \) ...
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Open AccessAdvances in nuclear detection and readout techniques
“A Craftsman Must Sharpen His Tools to Do His Job,” said Confucius. Nuclear detection and readout techniques are the foundation of particle physics, nuclear physics, and particle astrophysics to reveal the nat...
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Open AccessSearch for heavy Majorana or Dirac neutrinos and right-handed W gauge bosons in final states with charged leptons and jets in pp collisions at \(\sqrt{s}=13\) TeV with the ATLAS detector
A search for heavy right-handed Majorana or Dirac neutrinos \(N_{\textrm{R}}\) N ...
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Measurement of Br(n,γ) cross sections up to stellar s-process temperatures at the CSNS Back-n
The neutron capture cross sections ( \({n,\gamma }\) n , ...
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Open AccessPerformance of the reconstruction of large impact parameter tracks in the inner detector of ATLAS
Searches for long-lived particles (LLPs) are among the most promising avenues for discovering physics beyond the Standard Model at the Large Hadron Collider (LHC). However, displaced signatures are notoriously...
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Open AccessSearch for pair production of third-generation leptoquarks decaying into a bottom quark and a \(\tau \) -lepton with the ATLAS detector
A search for pair-produced scalar or vector leptoquarks decaying into a b-quark and a \(\tau \) τ ...
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Open AccessLuminosity determination in pp collisions at \(\sqrt{s}=13\) TeV using the ATLAS detector at the LHC
The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with pp collisions at a centre-of-mass energy $$\sqr...
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Article
CFD analysis of a CiADS fuel assembly during the steam generator tube rupture accident based on the LBEsteamEulerFoam
Steam generator tube rupture (SGTR) accident is an important scenario needed to be considered in the safety analysis of lead-based fast reactors. When the steam generator tube breaks close to the main pump, wa...
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Article
Open AccessCollisional Penrose process of extended test particles near an extremal Kerr black hole
We investigate the collisional Penrose process of extended test particles near an extremal Kerr black hole using the pole-dipole-quadrupole approximation. We analyze the motion of the test particles and examin...
