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LHCb discovers three new exotic particles（图）
大型强子对撞机 奇异粒子 五夸克 四夸克
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2023/5/26
The international LHCb collaboration at the Large Hadron Collider (LHC) has observed three never-before-seen particles: a new kind of “pentaquark” and the first-ever pair of “tetraquarks”, which inclu...
High-energy collisions at the Large Hadron Collider (LHC) allow researchers to clearly study heavy Standard Model particles, like the Higgs boson, that decay almost immediately at the LHC collision po...
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 ...
World’s smallest neutrino detector observes elusive interactions of particles（图）
World’s smallest neutrino detector interactions particles
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2017/9/4
In 1974, a Fermilab physicist predicted a new way for ghostly particles called neutrinos to interact with matter. More than four decades later, a UChicago-led team of physicists built the world’s smal...
Some 2 to 5 percent of all international trade involves counterfeit goods, according to a 2013 United Nations report. These illicit products — which include electronics, automotive and aircraft parts,...
MIT engineers have devised a way to measure the mass of particles with a resolution better than an attogram — one millionth of a trillionth of a gram. Weighing these tiny particles, including both syn...
Superluminal Spin-1/2 Particles are Left-Handed: From the Gordon Decomposition to the Suppression of Right-Handed States
Superluminal Spin-1/2 Particles Gordon Decomposition Suppression of Right-Handed States High Energy Physics Phenomenology
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2012/5/17
Superluminal spin-1/2 particles are analyzed under the assumption that the equation of motion is compatible with Lorentz invariance (tachyonic particles). It is found that tachyonic spin-1/2 particles...
视频：南京大学大学物理学第67讲 Particles and their classification
南京大学 大学物理学 第67讲 Particles and their classification 视频
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2012/4/5
视频：南京大学大学物理学第67讲 Particles and their classification。
Rotational diffusion of particles in turbulence
particle-laden fl ows homogeneous turbulence isotropic turbulence multiphase fl ows
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2014/4/1
Through laboratory measurements, we compared the rotation of spherical and ellipsoidal particles in
homogeneous, isotropic turbulence. We found that the particles’ angular velocity statistics are wel...
Shielding experiments by the JASMIN collaboration at Fermilab (II) - Radioactivity measurement induced by secondary particles from the anti-proton production target
Shielding experiments the JASMIN collaboration Fermilab Radioactivity measurement secondary particles
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2012/2/28
The JASMIN Collaboration has performed an experiment to conduct measurements of nuclear reaction rates around the anti-proton production (Pbar) target at the Fermi National Accelerator Laboratory (FNA...
Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC
Massive Long-lived Highly Ionising Particles ATLAS Detector LHC
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2011/4/2
Search for Massive Long-lived Highly Ionising Particles with the ATLAS Detector at the LHC 。
The Cusp as a Source of Magnetospheric Particles
Satellites plasma the solar wind magnetic sheath origin diamagnetic cavities the dipole field
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2017/3/23
Observations made by a number of satellites have shown that plasma of solar wind/magnetosheath origin enters the high altitude polar cusp creating diamagnetic cavities of large dimensions. The Earth's...
Acceleration of particles by black holes -- general explanation
particles black holes general explanation
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2010/12/24
We give simple and general explanation to the effect of unbound acceleration of particles by black holes. It is related to the fact that the scalar product of a timelike vector of the four-velocity o...
Possible Origin of the Anomalous Far-infrared Absorption by Small Metal Particles
Origin of the Anomalous Far-infrared Absorption Small Metal Particles
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2010/11/18
We have carried out far-infrared (far-IR) transmission measurements on the ligand stabilized
Au55 particles dispersed in CsI at volume fraction f = 0.002. We have found that while the
absorption coe...
Matrix Model for membrane and dynamics of D-Particles in a curved space-time geometry and presence of form fields
Matrix Model membrane dynamics D-Particles
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2010/12/23
We study dynamics of a membrane and its matrix regularisation. We present the matrix regularisation for a membrane propagating in a curved space-time geometry in the presence of an arbitrary 3-form fi...