Class information for:
Level 1: FINE STRUCTURE CONSTANT//FUNDAMENTAL COUPLINGS//VARIATION OF FUNDAMENTAL CONSTANTS

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
13 4 PHYSICS, PARTICLES & FIELDS//PHYSICS, NUCLEAR//OPTICS 1062565
7 3       PHYSICS, PARTICLES & FIELDS//PHYSICAL REVIEW D//JOURNAL OF HIGH ENERGY PHYSICS 157217
35 2             PHYSICS, PARTICLES & FIELDS//JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS//PHYSICAL REVIEW D 33220
12957 1                   FINE STRUCTURE CONSTANT//FUNDAMENTAL COUPLINGS//VARIATION OF FUNDAMENTAL CONSTANTS 900

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 FINE STRUCTURE CONSTANT authKW 296585 3% 35% 24
2 FUNDAMENTAL COUPLINGS authKW 210103 1% 100% 6
3 VARIATION OF FUNDAMENTAL CONSTANTS authKW 157574 1% 75% 6
4 ASTROPHYSICAL OBSERVATIONS authKW 112053 0% 80% 4
5 QUASAR SPECTRA authKW 112053 0% 80% 4
6 FUNDAMENTAL CONSTANTS authKW 107004 2% 17% 18
7 QUASARS ABSORPTION LINES authKW 94546 9% 3% 81
8 VARYING FINE STRUCTURE CONSTANT authKW 78787 0% 75% 3
9 AND GRAVITATIONAL INTERACTIONS authKW 70034 0% 100% 2
10 BSBM THEORY authKW 70034 0% 100% 2

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Astronomy & Astrophysics 16992 56% 0% 508
2 Physics, Particles & Fields 11901 38% 0% 340
3 Physics, Multidisciplinary 1959 22% 0% 201
4 Physics, Nuclear 1531 13% 0% 113
5 Physics, Atomic, Molecular & Chemical 654 12% 0% 105
6 Optics 527 11% 0% 102
7 Physics, Mathematical 30 2% 0% 21
8 Engineering, General 16 2% 0% 14
9 Education, Scientific Disciplines 4 1% 0% 5
10 Multidisciplinary Sciences 2 1% 0% 5

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ALBANY CAMPUSPRIVATE BAG 102904 35017 0% 100% 1
2 ASTROPHY SUPERCOMP 35017 0% 100% 1
3 ATOM MOL THEORY 35017 0% 100% 1
4 ATROPHYS PARIS 35017 0% 100% 1
5 CIFISTMARIE CURIE EXCELLENCE TEAM 35017 0% 100% 1
6 CNR SFIN 35017 0% 100% 1
7 DCET CPQ 35017 0% 100% 1
8 EDIF ETSEIB 35017 0% 100% 1
9 FC ASTRON GEOFIS 35017 0% 100% 1
10 FIS FUNDAMENTAL IUFFYM 35017 0% 100% 1

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PHYSICAL REVIEW D 12196 18% 0% 159
2 INTERNATIONAL JOURNAL OF MODERN PHYSICS D 4508 2% 1% 21
3 PHYSICAL REVIEW A 3635 9% 0% 85
4 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 2545 7% 0% 59
5 JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS 2510 2% 0% 21
6 PHYSICS LETTERS B 2464 7% 0% 59
7 ACTA POLYTECHNICA HUNGARICA 2333 1% 1% 7
8 GRAVITATION & COSMOLOGY 1818 1% 1% 5
9 MODERN PHYSICS LETTERS A 1568 2% 0% 20
10 PHYSICAL REVIEW LETTERS 1321 7% 0% 62

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 FINE STRUCTURE CONSTANT 296585 3% 35% 24 Search FINE+STRUCTURE+CONSTANT Search FINE+STRUCTURE+CONSTANT
2 FUNDAMENTAL COUPLINGS 210103 1% 100% 6 Search FUNDAMENTAL+COUPLINGS Search FUNDAMENTAL+COUPLINGS
3 VARIATION OF FUNDAMENTAL CONSTANTS 157574 1% 75% 6 Search VARIATION+OF+FUNDAMENTAL+CONSTANTS Search VARIATION+OF+FUNDAMENTAL+CONSTANTS
4 ASTROPHYSICAL OBSERVATIONS 112053 0% 80% 4 Search ASTROPHYSICAL+OBSERVATIONS Search ASTROPHYSICAL+OBSERVATIONS
5 QUASAR SPECTRA 112053 0% 80% 4 Search QUASAR+SPECTRA Search QUASAR+SPECTRA
6 FUNDAMENTAL CONSTANTS 107004 2% 17% 18 Search FUNDAMENTAL+CONSTANTS Search FUNDAMENTAL+CONSTANTS
7 QUASARS ABSORPTION LINES 94546 9% 3% 81 Search QUASARS+ABSORPTION+LINES Search QUASARS+ABSORPTION+LINES
8 VARYING FINE STRUCTURE CONSTANT 78787 0% 75% 3 Search VARYING+FINE+STRUCTURE+CONSTANT Search VARYING+FINE+STRUCTURE+CONSTANT
9 AND GRAVITATIONAL INTERACTIONS 70034 0% 100% 2 Search AND+GRAVITATIONAL+INTERACTIONS Search AND+GRAVITATIONAL+INTERACTIONS
10 BSBM THEORY 70034 0% 100% 2 Search BSBM+THEORY Search BSBM+THEORY

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 19370 RGGR//GENERAL RELATIVITY LIMIT//M Z RELATION
2 6022 OPTICAL FREQUENCY STANDARD//ATOMIC CLOCKS//LNE SYRTE
3 31688 BELTRAMI METRIC//BELTRAMI COORDINATES//DE SITTER GRAVITY
4 27276 ASTRONOMICAL SPECTROGRAPHS//PHYSICAL MODEL BASED CALIBRATIONS//ACTIVELY STABILIZED INTERFEROMETER
5 24 DARK ENERGY//DARK ENERGY THEORY//HOLOGRAPHIC DARK ENERGY
6 9762 BIG BANG NUCLEOSYNTHESIS//NUCLEAR REACTIONS NUCLEOSYNTHESIS ABUNDANCES//EXOTIC EVENT
7 7678 NONACCELERATOR PARTICLE PHYS GRP//NON ACCELERATOR PARTICLE PHYS GRP//FRANCIUM
8 34557 GEN RELAT GRAVITAT//ANALYTICAL SOFTWARE COMPLEX//NON MINIMAL EINSTEIN YANG MILLS THEORY
9 7877 LORENTZ VIOLATION//LORENTZ SYMMETRY VIOLATION//LORENTZ INVARIANCE VIOLATION
10 6482 EXPERIMENTAL TESTS OF GRAVITATIONAL THEORIES//PIONEER ANOMALY//EXPERIMENTAL STUDIES OF GRAVITY

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