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Elastic electron-proton scattering
Elastic electron-proton scattering

Anticipating New Physics at the LHC
Anticipating New Physics at the LHC

... Energies ...
b,Q 2 - INFN - Torino Personal pages
b,Q 2 - INFN - Torino Personal pages

Chapter 13 Radioactive Decay
Chapter 13 Radioactive Decay

... We note that this spread of energies is intrinsic; it has nothing to do with measurement uncertainties. Even with a perfect detector, we would observe this spread of detected energies. Finally, we investigate, for typical γ-transition lifetimes, what is the expected range of energyspreads that is li ...
Exploring the fundamental properties of matter with
Exploring the fundamental properties of matter with

The quark model and deep inelastic scattering
The quark model and deep inelastic scattering

Charge dependent azimuthal correlations with the ALICE detector at
Charge dependent azimuthal correlations with the ALICE detector at

... Panos.Christakoglou@nikhef.nl - P and CP odd effects in hot and dense matter, BNL ...
E. Rutherford, Proc. Roy. Soc., A97, 374 Bakerian Lecture
E. Rutherford, Proc. Roy. Soc., A97, 374 Bakerian Lecture

ABSTRACT Title of Document:
ABSTRACT Title of Document:

... The Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory provides experiments with the most energetic nucleus-nucleus collisions ever achieved in a laboratory. These have been used to investigate the phase diagram of nuclear matter at very high temperature and low baryon chemical ...
the book - Ultrawave Theory
the book - Ultrawave Theory

neutrino
neutrino

... is not observed, this is because two types of neutrinos exist n and ne ...
nuclear physics
nuclear physics

lecture notes - Particle Physics, Lund University
lecture notes - Particle Physics, Lund University

JUAS12_1(HISTORY) - Indico
JUAS12_1(HISTORY) - Indico

...  At low energies (Newton), the velocity of the particle increases with the square root of the kinetic energy.  At relativistic energies (Einstein), the velocity increases very slowly asymptotically approaching that of light.  It is as if the velocity of the particle ‘saturates’.  However, one ca ...
Trapped-Electron Runaway Effect
Trapped-Electron Runaway Effect

Electromagnetic Shells of Atoms and the Periodic System of Elements
Electromagnetic Shells of Atoms and the Periodic System of Elements

Observing Atomic Collapse Resonances in Artificial Nuclei on
Observing Atomic Collapse Resonances in Artificial Nuclei on

Charge trapping properties at silicon nitride/silicon oxide interface
Charge trapping properties at silicon nitride/silicon oxide interface

Document
Document

... The 21st century will surely provide those means. Already, the laser, the computer, and atomic energy have found their ways int o our lives and are already being used for the tasks of today. These same tools will be applied to new tasks of the 21 st century, tasks we cannot even conceive of today. I ...
Jack Steinberger - Nobel Lecture
Jack Steinberger - Nobel Lecture

... early seventies was a miraculous achievement, but one that had no immediate impact on the majority of particle physicists - certainly not on me perhaps because it was a theoretical construct which left the existing experimental domain intact. However, it predicted some entirely new phenomena, and of ...
Dark Matter Experiments
Dark Matter Experiments

Trapping beam
Trapping beam

... Assumption : two-level atom, in a laserfield of frequency wL, with a red detuning : d = wL - w0 < 0. laser-induced non-dissipative force associated with a potential ...
Holographic thermalization of quark gluon plazma
Holographic thermalization of quark gluon plazma

For Publisher`s use ELECTRON-POSITRON - INFN-LNF
For Publisher`s use ELECTRON-POSITRON - INFN-LNF

< 1 ... 3 4 5 6 7 8 9 10 11 ... 69 >

Antimatter

In particle physics, antimatter is material composed of antiparticles, which have the same mass as particles of ordinary matter but opposite charges, as well as other particle properties such as lepton and baryon numbers and quantum spin. Collisions between particles and antiparticles lead to the annihilation of both, giving rise to variable proportions of intense photons (gamma rays), neutrinos, and less massive particle–antiparticle pairs. The total consequence of annihilation is a release of energy available for work, proportional to the total matter and antimatter mass, in accord with the mass–energy equivalence equation, E = mc2.Antiparticles bind with each other to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements. Studies of cosmic rays have identified both positrons and antiprotons, presumably produced by collisions between particles of ordinary matter. Satellite-based searches of cosmic rays for antideuteron and antihelium particles have yielded nothing. There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to a more even mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between particles and antiparticles developed is called baryogenesis.Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Antimatter in the form of individual anti-particles, however, is commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium (both helium-3 and helium-4) have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.
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