649 Result(s)
within
Wan-**n Li
Physics
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Article
Open AccessSearch for the \( {B}_s^0 \) → μ+μ−γ decay
A search for the fully reconstructed B s 0 ...
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Article
A Novel Method to Enhance the Content and size of Y-211 Particles in YBCO bulk Superconductors Grown by RE+011 TSIG Process
In this research, a novel method to improve the particle size and content of Y2BaCuO5 (Y-211) in YBa2Cu3O7 − x (YBCO) bulks was demonstrated. The single-domain YBCO bulks (20 mm in diameter) have been fabricated ...
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Article
Open AccessProbing dirac neutrino properties with dilepton signature
The neutrinophilic two Higgs doublet model is one of the simplest models to explain the origin of tiny Dirac neutrino masses. This model introduces a new Higgs doublet with eV scale VEV to naturally generate t...
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Efficient and selective removal of Pb(II) from landfill leachate using L-serine-modified polyethylene/polypropylene nonwoven fabric synthesized via radiation grafting technique
In this study, to efficiently remove Pb(II) from aqueous environments, a novel L-serine-modified polyethylene/polypropylene nonwoven fabric sorbent (NWF-serine) was fabricated through the radiation grafting of...
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Design and prototy** of the readout electronics for the transition radiation detector in the high energy cosmic radiation detection facility
The high energy cosmic-radiation detection (HERD) facility is planned to launch in 2027 and scheduled to be installed on the China Space Station. It serves as a dark matter particle detector, a cosmic ray inst...
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Open AccessA measurement of ∆Γs
Using a dataset corresponding to 9 fb−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes ...
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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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The design of the front-end layout and first high-power-density masks for the hard X-ray nano-probe beamline at SSRF
The peak power density of the hard X-ray nano-probe beamline is the highest at SSRF (Shanghai Synchrotron Radiation Facility). The peak power density of the front-end is 77.43 kW/mrad2, which is about 1.7 times h...
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Open AccessEliminating sensing blind spots of field-enhanced Rydberg atomic antenna via an asymmetric parallel-plate resonator
Due to its large electric dipole moment, the Rydberg atom exhibits a strong response to weak electric fields, hence it is regarded as a highly promising atomic antenna. However, to enhance the reception sensit...
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Open AccessPrompt and nonprompt ψ(2S) production in pPb collisions at \( \sqrt{s_{\textrm{NN}}} \) = 8.16 TeV
The production of ψ(2S) mesons in proton-lead collisions at a centre-of-mass energy per nucleon pair of ...
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Article
Improving the security of quantum key distribution with multi-step advantage distillation
How to improve the key rate is an important question to analyze the security of quantum key distribution (QKD). Based on the one-step advantage distillation (OSAD), the key rate and transmission distance can b...
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Open AccessZero-bin subtraction and the qT spectrum beyond leading power
In this paper, we present an algorithm to construct the qT distribution at NLO accuracy to arbitrary power precision, including the assembly of suitable zero-bin subtrahends, in a mathematically well-defined way ...
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Open AccessSearch for long-lived heavy neutral leptons with lepton flavour conserving or violating decays to a jet and a charged lepton
A search for long-lived heavy neutral leptons (HNLs) is presented, which considers the hadronic final state and coupling scenarios involving all three lepton generations in the 2–20 GeV HNL mass range for the ...
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Open AccessA model-independent measurement of the CKM angle γ in partially reconstructed B± → D*h± decays with D → \( {K}_S^0 \) h+h− (h = π, K)
A measurement of CP-violating observables in B± → D*K± and B± → D*π± decays is made where the photon or neutral pion from the D* → Dγ or D* → Dπ0 decay is not reconstructed. The D meson is reconstructed in the se...
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Quantum time reflection and refraction of ultracold atoms
Time reflection and refraction are temporal analogies of the spatial boundary effects derived from Fermat’s principle. They occur when classical waves strike a time boundary where an abrupt change in the prope...
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Article
Atom-referenced and stabilized soliton microcomb
For the applications of the frequency comb in microresonators, it is essential to obtain a fully frequency-stabilized microcomb laser source. In this study, we present a system for generating a fully atom-refe...
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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 AccessSTCF conceptual design report (Volume 1): Physics & detector
The super τ-charm facility (STCF) is an electron–positron collider proposed by the Chinese particle physics community. It is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak lumino...
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Open AccessDemonstration of 75 km-fiber quantum clock synchronization in quantum entanglement distribution network
The quantum entanglement distribution network, serviced as the communication infrastructure which distributes quantum information among remote users, enables many applications beyond the reach of classical net...
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Two annular CsI(Tl) detector arrays for the charged particle telescopes
In this study, we constructed two annular detector arrays comprising 24 wedge-shaped CsI(Tl) crystals, and tested them using an \(\alpha\) ...
