parity
1
9.8
- noun
- /ˈpærɪti/
- Specialized
:
paridad
- So we take particle interaction and we flip parity and then charge and then time.
- parity violation
- parity conservation
- parity (P)
So we take particle interaction and we flip parity and then charge and then time.
- So we take particle interaction and we flip parity and then charge and then time.
- And that operator has odd parity.
Examples
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Once you excite such states, you could observe parity-odd correlations of the product particles.
Academic text (1999) -
P is parity, and CP is the product of parity and charge conjugation.
Academic text (1996) -
During any move, the parity doesn't change.
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So now let's first understand how the parity should act on the Dirac field.
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The effect of parity nonconservation is to increase the predicted cross section by a factor of 2.
Academic text (1995) -
Electromagnetic interactions, which dominate electron scattering, strictly respect parity conservation.
Academic text (2005) -
The point at still lower Q, from a 1999 measurement of parity violation in cesium atoms, is consistent with both the predicted running and no running at all.
Academic text (2005) -
Thus, Laporte's rule, allowing electric dipole transitions only between even and odd states, was a consequence of parity invariance.
Academic text (1995) -
In contrast, experiments in 1956 demonstrated that the weak interaction is not invariant under such parity inversion (P).
Blog text (33) -
In physics, the concept of parity refers to how certain equations remain unchanged when spatial coordinates are inverted.
Synonyms
1
7.9
A property of a system where left and right are swapped and it stays the same
Physical laws do not change when left and right are swapped
Two parts that look the same on each side of a middle line
Compounds
- Specialized
1
5.8
A way to find errors in digital data by checking whether the number of ones is even or odd
- Specialized
A rule in physics that switching left and right gives the same result
- Specialized
A small extra binary digit added so the total number of 1s is even or odd to find errors
How Symmetric
Surface Forms
Morphology
parity = par (opaque) = par + ity
The physics sense refers to invariance under spatial inversion, which is a highly technical abstraction not predictable from ordinary 'equal' plus '-ity'.
Etymology
Parity in physics is about what happens if you look at a process in a mirror and see if it stays the same. The word comes from Latin par 'equal', so parity asks whether the mirror image is 'equal' to the original.