Class information for:
Level 2: ANTIHYDROGEN//AVOGADRO CONSTANT//KILOGRAM

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1451 7819 26.9 56%


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
10 4 OPTICS//PHYSICS, PARTICLES & FIELDS//PHYSICS, MULTIDISCIPLINARY 1131262
251 3       JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS//PHYSICAL REVIEW A//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 46185
1451 2             ANTIHYDROGEN//AVOGADRO CONSTANT//KILOGRAM 7819
5200 1                   HIGHLY CHARGED IONS//EBIT//COLD TR PED IONS PROJECT 1658
5280 1                   ANTIHYDROGEN//ANTIPROTONIC HELIUM//NONNEUTRAL PLASMA 1646
6089 1                   ATOMOS MOL ESPECIAIS//MULTI COMPONENT MOLECULAR ORBITAL METHOD//GEOMETRICAL ISOTOPE EFFECT 1532
8839 1                   AVOGADRO CONSTANT//KILOGRAM//WATT BALANCE 1212
9450 1                   PROTON RADIUS//RYDBERG CONSTANT//MUONIC HYDROGEN 1155
19218 1                   3450//ABT ATOMARE PROZESSE//ANTICROSSING SPECTROSCOPY 516
35234 1                   CHANNELED ELECTRONS//ALIGNED CRYSTAL//CHERNOGLAVKA BRANCH 100

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 ANTIHYDROGEN authKW 297607 1% 83% 92
2 AVOGADRO CONSTANT authKW 269540 1% 97% 71
3 KILOGRAM authKW 230541 1% 97% 61
4 WATT BALANCE authKW 207475 1% 87% 61
5 METROLOGIA journal 184567 5% 13% 362
6 PHYSICAL REVIEW A journal 104266 17% 2% 1333
7 PLANCK CONSTANT authKW 98839 0% 77% 33
8 ANTIPROTONIC HELIUM authKW 85873 0% 100% 22
9 NONNEUTRAL PLASMA authKW 75879 0% 59% 33
10 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL WoSSC 71314 38% 1% 2958

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Physics, Atomic, Molecular & Chemical 71314 38% 1% 2958
2 Optics 30044 26% 0% 2070
3 Instruments & Instrumentation 21285 17% 0% 1321
4 Physics, Multidisciplinary 20029 24% 0% 1891
5 Physics, Nuclear 13710 13% 0% 1024
6 Physics, Particles & Fields 3201 8% 0% 588
7 Physics, Fluids & Plasmas 2421 5% 0% 377
8 Nuclear Science & Technology 1600 5% 0% 386
9 Physics, Applied 881 10% 0% 774
10 Spectroscopy 742 3% 0% 261

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 KASTLER BROSSEL 53342 2% 9% 145
2 ATOMOS MOL ESPECIAIS 42684 0% 58% 19
3 ULMER INITIAT UNIT 35130 0% 100% 9
4 COLD TR PED IONS PROJECT 33728 0% 41% 21
5 THEORET INTERDISCIPLINARY 31227 0% 100% 8
6 DIPARTIMENTO CHIM FIS INGN MAT 26187 0% 20% 33
7 GRP EGATO B CIA 18153 0% 42% 11
8 IST METROL G COLONNETTI 16089 0% 24% 17
9 QUANTUM CHEM 16054 1% 7% 63
10 DIPARTIMENTO FIS GEN A AVOGADRO 15688 0% 31% 13

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 METROLOGIA 184567 5% 13% 362
2 PHYSICAL REVIEW A 104266 17% 2% 1333
3 JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 34958 5% 2% 383
4 HYPERFINE INTERACTIONS 25836 3% 3% 228
5 IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 16262 2% 2% 194
6 CANADIAN JOURNAL OF PHYSICS 12831 2% 2% 143
7 PHYSICAL REVIEW LETTERS 12413 7% 1% 564
8 PHYSICA SCRIPTA 12129 3% 1% 229
9 PTB-MITTEILUNGEN 11118 0% 10% 28
10 PHYSICS OF PLASMAS 9618 3% 1% 219

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 ANTIHYDROGEN 297607 1% 83% 92 Search ANTIHYDROGEN Search ANTIHYDROGEN
2 AVOGADRO CONSTANT 269540 1% 97% 71 Search AVOGADRO+CONSTANT Search AVOGADRO+CONSTANT
3 KILOGRAM 230541 1% 97% 61 Search KILOGRAM Search KILOGRAM
4 WATT BALANCE 207475 1% 87% 61 Search WATT+BALANCE Search WATT+BALANCE
5 PLANCK CONSTANT 98839 0% 77% 33 Search PLANCK+CONSTANT Search PLANCK+CONSTANT
6 ANTIPROTONIC HELIUM 85873 0% 100% 22 Search ANTIPROTONIC+HELIUM Search ANTIPROTONIC+HELIUM
7 NONNEUTRAL PLASMA 75879 0% 59% 33 Search NONNEUTRAL+PLASMA Search NONNEUTRAL+PLASMA
8 FUNDAMENTAL CONSTANTS 66157 1% 40% 42 Search FUNDAMENTAL+CONSTANTS Search FUNDAMENTAL+CONSTANTS
9 POSITRONIUM 63105 1% 20% 81 Search POSITRONIUM Search POSITRONIUM
10 LAMB SHIFT 56165 0% 40% 36 Search LAMB+SHIFT Search LAMB+SHIFT

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.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 MOHR, PJ , TAYLOR, BN , NEWELL, DB , (2012) CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL CONSTANTS: 2010.REVIEWS OF MODERN PHYSICS. VOL. 84. ISSUE 4. P. 1527 -1605 188 65% 549
2 MOHR, PJ , TAYLOR, BN , NEWELL, DB , (2008) CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL CONSTANTS: 2006.REVIEWS OF MODERN PHYSICS. VOL. 80. ISSUE 2. P. 633 -730 165 65% 612
3 MOHR, PJ , TAYLOR, BN , (2000) CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL CONSTANTS: 1998.REVIEWS OF MODERN PHYSICS. VOL. 72. ISSUE 2. P. 351 -495 230 61% 608
4 DANIELSON, JR , DUBIN, DHE , GREAVES, RG , SURKO, CM , (2015) PLASMA AND TRAP-BASED TECHNIQUES FOR SCIENCE WITH POSITRONS.REVIEWS OF MODERN PHYSICS. VOL. 87. ISSUE 1. P. 247 -306 180 51% 37
5 (2007) THEORETICAL APPROACHES TO THE ENERGY LEVELS OF LOOSELY BOUND SYSTEMS.THEORY OF LIGHT HYDROGENIC BOUND STATES. VOL. 222. ISSUE . P. 1 -+ 186 93% 0
6 MOHR, PJ , TAYLOR, BN , NEWELL, DB , (2012) CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL CONSTANTS: 2010.JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. VOL. 41. ISSUE 4. P. - 189 65% 49
7 KARSHENBOIM, SG , (2005) PRECISION PHYSICS OF SIMPLE ATOMS: QED TESTS, NUCLEAR STRUCTURE AND FUNDAMENTAL CONSTANTS.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 422. ISSUE 1-2. P. 1 -63 162 87% 158
8 ANDREEV, OY , LABZOWSKY, LN , PLUNIEN, G , SOLOVYEV, DA , (2008) QED THEORY OF THE SPECTRAL LINE PROFILE AND ITS APPLICATIONS TO ATOMS AND IONS.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 455. ISSUE 4-6. P. 135 -246 171 86% 29
9 EIDES, MI , GROTCH, H , SHELYUTO, VA , (2001) THEORY OF LIGHT HYDROGENLIKE ATOMS.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 342. ISSUE 2-3. P. 63 -261 144 92% 280
10 TAYLOR, BN , MOHR, PJ , (2005) CODATA RECOMMENDED VALUES OF THE FUNDAMENTAL PHYSICAL CONSTANTS: 2002.REVIEWS OF MODERN PHYSICS. VOL. 77. ISSUE 1. P. 1 -107 180 53% 458

Classes with closest relation at Level 2


Rank Class id link
1 2609 MUONIUM//HYPERFINE INTERACTIONS//MUON CATALYZED FUSION
2 877 ATOMIC DATA//ATOMIC DATA AND NUCLEAR DATA TABLES//ATOMIC PROCESSES
3 180 JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS//PHYSICAL REVIEW A//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL
4 2170 POSITRON ANNIHILATION//POSITRONIUM//FREE VOLUME
5 3771 MEASUREMENT UNCERTAINTY//METROLOGIA//COVERAGE INTERVAL
6 2138 FLUORESCENCE YIELD//X RAY PRODUCTION CROSS SECTION//NUCL SCI S
7 3941 MICROWAVE MAGNET//TOROIDAL DIPOLE//MAGNETIC DIPOLAR MODES
8 607 JOURNAL OF MOLECULAR SPECTROSCOPY//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL//SPECTROSCOPIC CONSTANTS
9 2696 METROLOGIA//ITS 90//INTERNATIONAL JOURNAL OF THERMOPHYSICS
10 1447 FEW-BODY SYSTEMS//PHYSICAL REVIEW C//HYPERNUCLEI

Go to start page