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Unlike electrons, quarks cannot wander freely in ordinary matter. They are confined by the strong force within hadrons such as the protons and neutrons that make up atomic nuclei. However, at very hig...
The LHCb collaboration has measured a difference in mass between two particles of 0.00000000000000000000000000000000000001 grams – or, in scientific notation, 10-38 g. The result, reported in a paper ...
中国地质大学科学技术发展院罗良（博士后），蔡建超地空学院 International Journal of Heat and Mass Transfer, The convective heat transfer of branched structure
分叉；结构；对流；换热；研究
2021/10/21
2018年1月，《International Journal of Heat and Mass Transfer》（IF=3.458）刊发了中国地质大学地空学院蔡建超教授团队的研究论文——《分叉结构对流换热研究》(The convective heat transfer of branched structure)。
‘Negative mass’ created at Washington State University
Negative mass Washington State University
2017/4/27
Washington State University physicists have created a fluid with negative mass, which is exactly what it sounds like. Push it, and unlike every physical object in the world we know, it doesn’t acceler...
The British Mass Spectrometry Society（BMSS）
The British Mass Spectrometry Society BMSS 英国质谱学会
2017/3/22
The first foundations of the BMSS were laid in 1949 with the establishment of the Mass Spectrometry Panel by the Hydrocarbon Research Group. This Panel itself set the foundations for what is now the I...
长江大学物理科学与技术学院力学课件第五章 Center of Mass and Linear Momentum
长江大学 物理科学与技术学院 力学 课件 第五章 Center of Mass and Linear Momentum
2017/2/23
长江大学物理科学与技术学院力学课件第五章 Center of Mass and Linear Momentum。
Room Temperature Ultra-sensitive Mass Spectrometer via Dynamic Decoupling
Room Temperature Ultra-sensitive Mass Spectrometer Dynamic Decoupling
2016/1/22
We propose an ultrasensitive mass spectrometer based on a coupled quantum-bit-oscillator system. Under dynamical decoupling control of the quantum bit (qubit), the qubit coherence exhibits a comb stru...
The Electromagnetic Mass Differences of Pions and Kaons
Meson kaon electromagnetic depend on the model input high energy kaon
2014/12/23
We use the Cottingham method to calculate the pion and kaon electromagnetic mass differences with as few model dependent inputs as possible. The constraints of chiral symmetry at low energy, QCD at hi...
Chiral sum rules to second order in quark mass
Isospin hypercharged axial vector current chiral perturbation theory chiral spectrum function low energy spectrum functions
2014/12/22
A new calculation of the isospin and hypercharge axial-vector current propagators [ ΔA33μν(q2) and ΔA88μν(q2)] to two loops in SU(3)×SU(3) chiral perturbation theory is used to derive chiral spectral ...
Electromagnetic mass differences of pions and kaons
Computing meson kaon electromagnetic chiral symmetry constraint low energy the quality of the meson
2014/12/22
We use the Cottingham method to calculate the pion and kaon electromagnetic mass differences with as few model-dependent inputs as possible. The constraints of chiral symmetry at low energy, QCD at hi...
Viable range of the mass scale of the standard model
Physical parameters the higgs particle quality parameter values complex elements
2014/12/22
In theories in which different regions of the universe can have different values of certain physical parameters, we would naturally find ourselves in a region where they take values favorable for life...
Positivity bounds for the Yano-Arnowitt-Deser-Misner mass density
Vector conservation of gravity mass density energy
2014/12/20
Killing-Yano tensors are natural generalizations of Killing vectors to arbitrary rank antisymmetric tensor fields. It was recently shown that Killing-Yano tensors lead to conserved gravitational charg...
Observation of Unusual Mass Transport in Solid hcp 4He
Stop the capillary constant temperature superfluid solid atoms the melting curve
2014/12/20
Solid 4He has been created off the melting curve by growth at a nearly constant mass via the “blocked capillary” technique and growth from the 4He superfluid at constant temperature. The experimental ...
Quantum-limited mass flow of liquid He-3
Quantum fluid nano channel quantized conductance sensitive to temperature scattering matrix simulation
2014/12/19
We consider theoretically the possibility of observing unusual quantum fluid behavior in liquid 3He and solutions of 3He in 4He systems confined to nanochannels. In the case of pure ballistic flow at ...
Observation of mass transport through solid 4He
Superfluid helium cells solid temperature
2014/12/19
By use of an experimental design that provides for superfluid helium in contact with bulk hcp 4He off the melting curve, we have observed the dc transport of mass through a cell filled with solid 4He ...