H. He

ORCID: 0009-0008-3906-2037
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About
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Research Areas
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Quantum Chromodynamics and Particle Interactions
  • Dark Matter and Cosmic Phenomena
  • Particle Detector Development and Performance
  • Cosmology and Gravitation Theories
  • Neutrino Physics Research
  • Computational Physics and Python Applications
  • Astrophysics and Cosmic Phenomena
  • Black Holes and Theoretical Physics
  • Atomic and Subatomic Physics Research
  • High-Velocity Impact and Material Behavior
  • Energetic Materials and Combustion
  • Particle Accelerators and Free-Electron Lasers
  • Distributed and Parallel Computing Systems
  • Advanced Memory and Neural Computing
  • Mechanical Behavior of Composites
  • Structural Response to Dynamic Loads
  • Stochastic processes and financial applications
  • Noncommutative and Quantum Gravity Theories
  • Medical Imaging Techniques and Applications
  • Nuclear Physics and Applications
  • Advanced Photocatalysis Techniques
  • Magnetic properties of thin films
  • Microstructure and Mechanical Properties of Steels

University of Wisconsin–Madison
2020-2025

European Organization for Nuclear Research
2022-2025

Beihang University
2025

University of Wisconsin System
2024

Institute of High Energy Physics
2021-2024

A. Alikhanyan National Laboratory
2022-2024

Northwestern Polytechnical University
2019-2024

University of Antwerp
2024

Beijing University of Civil Engineering and Architecture
2024

Vanderbilt University
2020-2024

Experimental observations and theoretical arguments at Galaxy larger scales have suggested that a large fraction of the Universe is composed by Dark Matter particles. This has motivated DAMA experimental efforts to investigate presence such particles in galactic halo exploiting model independent signature very highly radiopure set-ups deep underground. Few introductory are summarized before presenting review present positive results obtained DAMA/NaI DAMA/LIBRA Gran Sasso National Laboratory...

10.1142/s0217751x13300226 article EN International Journal of Modern Physics A 2013-06-25

In this paper another class of Dark Matter candidate particles — the pseudoscalar and scalar light bosonic candidates is discussed. Particular care devoted to study processes for their detection (which only involves electrons photons/X-rays) in a suitable underground experimental setup. For purpose needed calculations are developed various related aspects phenomenologies particular, it shown that addition WIMP cases already discussed elsewhere there also possibility account 6.3σ C.L. model...

10.1142/s0217751x06030874 article EN International Journal of Modern Physics A 2006-03-20

Some extensions of the Standard Model provide Dark Matter candidate particles with sub-GeV mass. These Light have been considered for example in Warm scenarios (e.g. keV scale sterile neutrino, axino or gravitino). Moreover, MeV DM candidates proposed supersymmetric models and as source 511 line from Galactic center. In this paper possibility direct detection a is investigated considering inelastic scattering processes on electron nucleus targets. theoretical arguments are developed related...

10.1142/s0217732308027473 article EN Modern Physics Letters A 2008-08-30

This paper gathers arguments and reasons why muons surviving the Gran Sasso mountain cannot mimic Dark Matter annual modulation signature exploited by DAMA/NaI DAMA/LIBRA experiments. A number of these items have already been presented in individual papers. Further addressed here order to present a comprehensive collection enable wider community correctly approach this point.

10.1140/epjc/s10052-012-2064-4 article EN cc-by The European Physical Journal C 2012-07-01

This paper summarizes in a simple and intuitive way why the neutrons, muons solar neutrinos cannot give any significant contribution to DAMA annual modulation results. A number of these elements have already been presented individual papers; they are recalled here together with few considerations which demonstrate incorrectness claim reported Davis (PRL 113:081302, 2014).

10.1140/epjc/s10052-014-3196-5 article EN cc-by The European Physical Journal C 2014-12-01

Additive manufacturing (AM) has become one advanced method for continuous carbon fiber reinforced polymer (CCFRP) composites, which is promising to work as aerospace materials. To promote their efficient design and extensive application, series of tensile fiber-pullout tests were implemented investigate the rate-dependent mechanical behavior fracture mechanism. Both strength strain significantly increase with rate in studied range 0.0001–1600 s−1. Fiber-pullout test also confirms that...

10.1016/j.polymertesting.2024.108382 article EN cc-by Polymer Testing 2024-02-16

This study employs the high-speed shadowing technique to examine near-field trajectory and penetration characteristics of water jets in a crossflow with different velocity gradients, which is achieved by multislot plate version same channel located 100 mm upstream nozzle. The findings reveal that, under identical average incoming velocities but gradient along jet direction crossflow, breakup mode changes due variable aerodynamic pressures exerted on interface; when from positive negative,...

10.2514/1.j064105 article EN AIAA Journal 2025-03-07

In the present paper results obtained in investigation of possible diurnal effects for low-energy single-hit scintillation events DAMA/LIBRA-phase1 (1.04 ton $$\times $$ year exposure) have been analysed terms an effect expected case dark matter (DM) candidates inducing nuclear recoils and having high cross-section with ordinary matter, which implies low DM local density order to fulfill DAMA/LIBRA annual modulation results. This is due different Earth depths crossed by those during sidereal day.

10.1140/epjc/s10052-015-3473-y article EN cc-by The European Physical Journal C 2015-05-01

Near-infrared Ag<sub>2</sub>Se QDs with distinct absorption features ranging between 830–954 nm and fluorescence quantum yields up to 23.4% were controllably synthesized, the molar extinction coefficients of determined.

10.1039/c6ra04987g article EN RSC Advances 2016-01-01

The results obtained in the search for possible diurnal effect single-hit low energy data collected by DAMA/LIBRA-phase1 (total exposure 1.04 ton $$\times $$ year) deep underground at Gran Sasso National Laboratory (LNGS) of INFN are presented. At present level sensitivity presence any significant variation and time structures can be excluded both cases solar sidereal time. In particular, modulation amplitude expected, because Earth motion, on basis DAMA dark matter annual is below sensitivity.

10.1140/epjc/s10052-014-2827-1 article EN cc-by The European Physical Journal C 2014-03-01

Several of the many proposed Dark Matter candidate particles, already investigated with lower exposure and a higher software energy threshold, are further analyzed including first DAMA/LIBRA-phase2 data release, an 1.13 tyr threshold (1 keV).The cumulative above 2 keV considering also DAMA/NaI DAMA/LIBRA-phase1 results is now 2.46 tyr.The analysis permits to constrain parameters' space considered candidates restricting their valueswith respect previous analysesthanks increase threshold.

10.15407/jnpae2019.04.317 article EN cc-by-nc Nuclear Physics and Atomic Energy 2019-12-25

Abstract The uniaxial tension experiments are performed on thermoplastic polyurethane to investigate its mechanical behaviors and related potential mechanisms, the loading strain rate is designing be wide ranging from 0.0001 1 s −1 . It found that presents an obvious rate‐dependence, stress curves share distinct hardening characteristics under investigated rates. Furthermore, ratios sharing nearly same trends appear influenced by both induced adiabatic heating. Besides, ratio also...

10.1002/pen.25364 article EN Polymer Engineering and Science 2020-03-02

Hopkinson bar loading technique needs theoretical instruction for desired stress waves, to achieve controllable deformation under constant high strain rate loading, it is the indispensable access while investigating material's rate-dependence and mechanism transient loading. In this work, experimental studies are focused on involved issues. Firstly, deduction based wave theory performed true equation formulated of an ideal incident different materials. The waves further clarified by case...

10.1016/j.polymertesting.2022.107520 article EN cc-by Polymer Testing 2022-02-22

A perpendicularly exchange-coupled composite structure, which consists of a [Co/Ni]N multilayer and ferrimagnetic TbCo layer, displays specific features when it is utilized as reference layer in spin valves. By slightly increasing the thickness, coercivity coupled structure greatly increases, thereby giving an effective way to widen difference switching fields for free layers, making possible manipulate magnetizations parallel or antiparallel wide range fields. Such cannot only maintain high...

10.1063/1.3536476 article EN Journal of Applied Physics 2011-01-15

The dependence of magnetic properties on layer repetition number and Ru thicknesses have been studied for perpendicularly magnetized synthetic antiferromagnet (SAF) in a structure [Co/Ni] <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">N</sub> /Ru/[Co/Ni] xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> . optimum SAF with strong antiferromangetic coupling field large switching the net magnetization determined utilized as reference pseudo spin...

10.1109/tmag.2010.2043503 article EN IEEE Transactions on Magnetics 2010-05-28
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