from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A spectral line having more than one component, representing slight variations in the energy states characteristic of an atom.
- n. Any of several classes or groupings of subatomic particles, such as the nucleon, that are similar in most properties but different in electric charge.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A spectral line that has multiple components
- n. A compound peak produced in several forms of spectroscopy
- n. Any of several groupings of subatomic particles that share most properties, but have different charges
In multicomponent DM scenarios, a dark force would preclude large shifts in the rate for Higgs decay to two photons associated with DM-multiplet loops that might otherwise lead to measurable deviations at the LHC or a future linear collider.
This might also mean there is a higher mass multiplet of leptons as well, though those should have been detected if they exist.
This gets of course into string theory, and the closed string which carry the supergravity multiplet couples to the D-brane of the universe more strongly by coupling to or transforming to an open IIB string.
November 25th, 2009 at 2:56 pm a higher family structure, say a fourth quark multiplet?
In particular does quantum chromodynamics QCD have a higher family structure, say a fourth quark multiplet?
He introduced a new fundamental characteristic of a multiplet called its hypercharge.
This is defined as twice the mean value of the charges in the multiplet.
For example, all closed string modes may be thought of as components of a gigantic stringy "gravitational multiplet" and all other branes are generalizations of a string (and they can be dual to strings in various dual descriptions).
With over a decade of continuous improvement, a host of incredibly useful features to help students, chemists, and spectroscopists have been introduced to help them get the most out of their data NMR data; automatic extraction of multiplet patterns and coupling constants, assignment of multiplets to atoms in a chemical structure, robust and sophisticated macro capabilities, and powerful reporting tools to name a few.
If this is not the case, then the multiplet structure can still be predicted by considering first the coupling to one set of equivalent J-coupled nuclei and predicting that the effect of the remaining nuclei will cause additional splitting of the multiplet generated by interaction with the first set.
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