In atomic physics, the fine structure describes the splitting of the spectral lines of atoms due to electron spin and relativistic corrections to the non-relativistic...

In physics, the fine-structure constant, also known as the Sommerfeld constant, commonly denoted by α (the Greek letter alpha), is a fundamental physical...

X-ray absorption fine structure (XAFS) is a specific structure observed in X-ray absorption spectroscopy (XAS). By analyzing the XAFS, information can...

Extended X-ray absorption fine structure (EXAFS), along with X-ray absorption near edge structure (XANES), is a subset of X-ray absorption spectroscopy...

eukaryotic chromosome fine structure refers to the structure of sequences for the chromosomes of eukaryotic organisms. Some fine sequences are included...

field generated by the rotation of the molecule. Hyperfine structure contrasts with fine structure, which results from the interaction between the magnetic...

X-ray absorption near edge structure (XANES), also known as near edge X-ray absorption fine structure (NEXAFS), is a type of absorption spectroscopy that...

Fine structure theory may refer to: Fine structure, a property in quantum physics Fine structure theory, the study of the levels of the Jensen hierarchy...

Temporal envelope (ENV) and temporal fine structure (TFS) are changes in the amplitude and frequency of sound perceived by humans over time. These temporal...

universal dimensionless constants. Perhaps the best-known example is the fine-structure constant, α, which has an approximate value of ⁠1/137.036⁠. It has been...

In solid state physics and physical chemistry, the fine electronic structure of a solid are the features of the electronic bands induced by intrinsic...

studying distant quasars, has claimed to detect a variation of the fine-structure constant at the level in one part in 105. Other authors dispute these...

Fine structure genetics is a subfield of genetics which encompasses a set of tools used to examine not just the mutations within an entire genome, but...

Because of the spin–orbit interaction, the Lyman-alpha line splits into a fine-structure doublet with the wavelengths of 1215.668 and 1215.674 angstroms. These...

narrower case of dimensionless universal physical constants, such as the fine-structure constant α, which characterizes the strength of the electromagnetic...

determined constant, its value being proportional to the dimensionless fine-structure constant, which is known to a relative uncertainty of 1.6×10−10, with...

1/137 was once thought to be the exact value of the fine-structure constant. The fine-structure constant, a dimensionless physical constant, is approximately...

}}\ln {\frac {1}{\pi \alpha }},} where α {\displaystyle \alpha } is the fine-structure constant. This shift is about 500 MHz, within an order of magnitude...

barium). The natural reactor of Oklo has been used to check if the atomic fine-structure constant α might have changed over the past 2 billion years. That is...

(2001). "Electron affinities of 16 O, 17 O, 18 O, the fine structure of 16O−, and the hyperfine structure of 17O−". Phys. Rev. A. 64 (5): 052504. Bibcode:2001PhRvA...

the fine-structure constant. The CODATA value of the Bohr radius (in SI units) is 5.29177210544(82)×10−11 m. In the Bohr model for atomic structure, put...

\alpha ^{2}mc^{2}} , where α {\displaystyle \alpha } is the unitless fine-structure constant, defined as α ≡ e 2 4 π ϵ 0 ℏ c ≈ 1 137.036 {\displaystyle...

the Pauli exclusion principle, the Aufbau principle, and Hund's rule. Fine structure arises from relativistic kinetic energy corrections, spin–orbit coupling...

February and March 2007 by the New Horizons spacecraft revealed a rich fine structure in the main ring. In visible and near-infrared light, the rings have...

specific tests of QED consist of measurements of the electromagnetic fine-structure constant, α, in various physical systems. Checking the consistency of...

electronic structure in close vicinity of the chosen atom. Thus, RIXS experiments give valuable information about the local electronic structure of complex...

speculated that physical constants such as the gravitational constant or the fine-structure constant might be subject to change over time in proportion of the age...

order of an amorphous material can be elucidated. X-ray absorption fine-structure spectroscopy is an atomic scale probe making it useful for studying...

absorption near-edge structure (XANES), introduced in 1980 and later in 1983 and also called NEXAFS (near-edge X-ray absorption fine structure), which are dominated...

zitterbewegung effect. The addition of these three corrections is known as the fine structure. The interaction between the magnetic field created by the electron...