Sunday, November 22, 2015

GeV and TeV , billion and trillion We toss around the term “TeV” – a teraelectron volt, 1012 electron volts

GeV and TeV

G stands for Giga, or billion.
T stands for Tera, or trillion.
eV stands for “electron-volt”, and it is a measure of energy.
  • If an electron moves from one terminal of a nine-volt battery to the other, its motion energy will increase by nine electron-volts.
That’s it.
To get a sense of scale: The mass energy of a proton, m_proton times c-squared (c being the speed of light), is 0.938 GeV.  So if you took a proton and its anti-particle, an anti-proton, and allowed them to slowly meet and annihilate, they might sometimes turn into two photons (particles of light) and each of the two photons would have 0.938 GeV of energy.
An electron has 0.000511 GeV of mass energy.
A top quark, the heaviest elementary particle known so far, has about 172 GeV of mass energy.  That’s just a bit below the mass energy of an atom of gold.
The proton-antiproton collisions at the Tevatron are at 1.96 TeV, or 1960 GeV.  The proton-proton collisions at the LHC are currently (July 2011) at 7 TeV, or 7000 GeV.  The design of the LHC should allow for collision energies twice that high, 14 TeV, after the design flaws in the magnet-protection system found in 2008 are corrected in 2013.

First images of collisions at 13 TeV | CERN

home.cern/about/updates/2015/05/first-images-collisions-13-tev
May 26, 2015 - Last night, protons collided in the Large Hadron Collider (LHC) at the record-breaking energy of 13 teraelectronvolts (TeV) ... Protons collide at 13 TeV sending showers of particles through the ALICE detector (Image: ALICE)
 
[PDF]1. PHYSICAL CONSTANTS - Particle Data Group
pdg.lbl.gov/.../reviews/rpp2011-...
Lawrence Berkeley National Laboratory
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2006” by P.J. Mohr, B.N. Taylor, and D.B. Newell in Rev. Mod. ... coupling constant) comes from the Particle Data Group. ... Planck constant, reduced ... wavelength of 1 eV/c particle hc/(1 eV). 1.239 841 875(31)×10−6 m. 25. Rydberg energy.

The Planck scale: relativity meets quantum mechanics ...

newt.phys.unsw.edu.au/einsteinlight/jw/module6_Planck.htm
The Planck length LP is defined by taking the constants of nature and ... that they can produce, and the latest generation produces energies of TeV, or 1012 eV.

Photoelectric Effect - HyperPhysics

hyperphysics.phy-astr.gsu.edu/hbase/mod2.html
Georgia State University
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The minimum energy required to eject an electron from the surface is called the ... Using this wavelength in the Planck relationship gives a photon energy of 1.82 eV. ... The quantum of energy for a photon is not Planck's constant h itself, but the ...

Energy of Photon | PVEducation

www.pveducation.org › ... › 2. Properties of Sunlight
where h is Planck's constant and c is the speed of light. ... By expressing the equation for photon energy in terms of eV and µm we arrive at a commonly used ...

Time in Powers of Ten: Natural Phenomena and Their Timescales

https://books.google.com/books?isbn=9814494933
Gerard 't Hooft, ‎Stefan Vandoren - 2014 - ‎Science
PLANCK'S CONSTANT Position The constant of Planck is central to quantum ... For instance, for a particle with an energy of 7 TeV — at this moment the highest ...

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