Class information for:
Level 1: ANTIHYDROGEN//ANTIPROTONIC HELIUM//NONNEUTRAL PLASMA

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
5280 1646 25.2 64%


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
5280 1                   ANTIHYDROGEN//ANTIPROTONIC HELIUM//NONNEUTRAL PLASMA 1646

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 1353581 5% 81% 90
2 ANTIPROTONIC HELIUM authKW 408090 1% 100% 22
3 NONNEUTRAL PLASMA authKW 360695 2% 59% 33
4 ANTIPROTON authKW 252820 3% 28% 48
5 ULMER INITIAT UNIT address 166946 1% 100% 9
6 NONNEUTRAL PLASMAS authKW 150249 1% 90% 9
7 ANTIPROTONIC ATOMS authKW 140274 1% 69% 11
8 ELECTRON PLASMA authKW 132021 1% 65% 11
9 ANTIPROTONIC HELIUM ATOM authKW 129847 0% 100% 7
10 DIPARTIMENTO CHIM FIS INGN MAT address 124642 2% 20% 33

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, Fluids & Plasmas 12629 22% 0% 357
2 Physics, Atomic, Molecular & Chemical 8748 29% 0% 481
3 Physics, Nuclear 7927 21% 0% 348
4 Physics, Multidisciplinary 4983 26% 0% 430
5 Optics 2582 17% 0% 288
6 Instruments & Instrumentation 1572 10% 0% 171
7 Nuclear Science & Technology 1329 9% 0% 148
8 Physics, Particles & Fields 983 9% 0% 146
9 Physics, Condensed Matter 367 10% 0% 163
10 Spectroscopy 229 4% 0% 64

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 ULMER INITIAT UNIT 166946 1% 100% 9
2 DIPARTIMENTO CHIM FIS INGN MAT 124642 2% 20% 33
3 GRP EGATO B CIA 86314 1% 42% 11
4 GRP B CIA 60702 0% 55% 6
5 RI BEAM SCI 51185 1% 20% 14
6 STEFAN MEYER SUBATOM PHYS 39561 0% 27% 8
7 ATOM PHYS 35461 4% 3% 61
8 IKP 31910 1% 8% 22
9 AEROSP SCI TECH 24731 0% 67% 2
10 PHYS COMPLEX SYST THEORY 24731 0% 67% 2

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 PHYSICS OF PLASMAS 46448 13% 1% 217
2 HYPERFINE INTERACTIONS 36692 8% 2% 124
3 PHYSICS OF FLUIDS B-PLASMA PHYSICS 10818 2% 2% 34
4 PHYSICAL REVIEW A 7924 10% 0% 170
5 PHYSICAL REVIEW LETTERS 7601 12% 0% 199
6 JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 7428 5% 1% 81
7 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 2232 4% 0% 63
8 PHYSICA SCRIPTA 1406 2% 0% 36
9 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1315 3% 0% 56
10 CANADIAN JOURNAL OF PHYSICS 1179 1% 0% 20

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 1353581 5% 81% 90 Search ANTIHYDROGEN Search ANTIHYDROGEN
2 ANTIPROTONIC HELIUM 408090 1% 100% 22 Search ANTIPROTONIC+HELIUM Search ANTIPROTONIC+HELIUM
3 NONNEUTRAL PLASMA 360695 2% 59% 33 Search NONNEUTRAL+PLASMA Search NONNEUTRAL+PLASMA
4 ANTIPROTON 252820 3% 28% 48 Search ANTIPROTON Search ANTIPROTON
5 NONNEUTRAL PLASMAS 150249 1% 90% 9 Search NONNEUTRAL+PLASMAS Search NONNEUTRAL+PLASMAS
6 ANTIPROTONIC ATOMS 140274 1% 69% 11 Search ANTIPROTONIC+ATOMS Search ANTIPROTONIC+ATOMS
7 ELECTRON PLASMA 132021 1% 65% 11 Search ELECTRON+PLASMA Search ELECTRON+PLASMA
8 ANTIPROTONIC HELIUM ATOM 129847 0% 100% 7 Search ANTIPROTONIC+HELIUM+ATOM Search ANTIPROTONIC+HELIUM+ATOM
9 ANTIMATTER 110221 1% 26% 23 Search ANTIMATTER Search ANTIMATTER
10 PROTONIUM 100989 0% 78% 7 Search PROTONIUM Search PROTONIUM

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 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 -306 171 49% 37
2 WALZ, J , HORI, M , (2013) PHYSICS AT CERN'S ANTIPROTON DECELERATOR.PROGRESS IN PARTICLE AND NUCLEAR PHYSICS. VOL. 72. ISSUE . P. 206 -253 164 52% 13
3 BERTSCHE, WA , BUTLER, E , CHARLTON, M , MADSEN, N , (2015) PHYSICS WITH ANTIHYDROGEN.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. VOL. 48. ISSUE 23. P. - 83 78% 3
4 AMSLER, C , BONOMI, G , FONTANA, A , KELLERBAUER, A , LAGOMARSINO, V , RIZZINI, EL , ROTONDI, A , TESTERA, G , VENTURELLI, L , ZURLO, N , (2014) THE ATHENA EXPERIMENT FOR THE STUDY OF ANTIHYDROGEN.INTERNATIONAL JOURNAL OF MODERN PHYSICS A. VOL. 29. ISSUE 20. P. - 79 79% 0
5 HOLZSCHEITER, MH , CHARLTON, M , NIETO, MM , (2004) THE ROUTE TO ULTRA-LOW ENERGY ANTIHYDROGEN.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 402. ISSUE 1-2. P. 1 -101 120 60% 52
6 CHARLTON, M , VAN DER WERF, DP , (2015) ADVANCES IN ANTIHYDROGEN PHYSICS.SCIENCE PROGRESS. VOL. 98. ISSUE 1. P. 34 -62 62 83% 2
7 ROME, M , LEPRETI, F , (2011) TURBULENCE AND COHERENT STRUCTURES IN NON-NEUTRAL PLASMAS.EUROPEAN PHYSICAL JOURNAL PLUS. VOL. 126. ISSUE 4. P. - 80 68% 1
8 YAMAZAKI, T , MORITA, N , HAYANO, RS , WIDMANN, E , EADES, J , (2002) ANTIPROTONIC HELIUM.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 366. ISSUE 4-5. P. 183 -329 67 87% 121
9 RIZZINI, EL , VENTURELLI, L , ZURLO, N , CHARLTON, M , AMSLER, C , BONOMI, G , CANALI, C , CARRARO, C , FONTANA, A , GENOVA, P , ET AL (2012) FURTHER EVIDENCE FOR LOW-ENERGY PROTONIUM PRODUCTION IN VACUUM.EUROPEAN PHYSICAL JOURNAL PLUS. VOL. 127. ISSUE 10. P. - 50 74% 2
10 FITZAKERLEY, DW , GEORGE, MC , HESSELS, EA , SKINNER, TDG , STORRY, CH , WEEL, M , GABRIELSE, G , HAMLEY, CD , JONES, N , MARABLE, K , ET AL (2016) ELECTRON-COOLED ACCUMULATION OF 4 X 10(9) POSITRONS FOR PRODUCTION AND STORAGE OF ANTIHYDROGEN ATOMS.JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS. VOL. 49. ISSUE 6. P. - 30 86% 3

Classes with closest relation at Level 1


Rank Class id link
1 8394 POSITRON//POSITRONIUM FORMATION//POSITRONIUM
2 35928 FIELD PARTICLES VELOCITY DISTRIBUTION//FOKKER PLANCK COEFFICIENTS//MODERATELY COUPLED PLASMA
3 9450 PROTON RADIUS//RYDBERG CONSTANT//MUONIC HYDROGEN
4 7810 PENNING TRAP//ATOMIC MASSES//ION GUIDE
5 24333 HS OS 1//PIONIC X RAYS//DIAGNOST RADIOL RADIAT ONCOL
6 1609 POSITRON ANNIHILATION//POSITRON BEAM//SLOW POSITRON BEAM
7 27249 MINI RT//DIPOLE CONFINEMENT//LEVITATED DIPOLE
8 23278 AUTORESONANCE//SLOWLY VARYING PARAMETER//ASYMPTOTIC REPRESENTATION OF SOLUTIONS
9 2485 TRAPPED IONS//ION TRAP//ULTRACOLD ATOMS
10 10173 MUON CATALYZED FUSION//MUONIC MOLECULE//MUONIC HYDROGEN

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