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Titolo:
SEARCH FOR HEAVY CHARGED-PARTICLES AND FOR PARTICLES WITH ANOMALOUS CHARGE IN E(-) COLLISIONS AT LEP()E()
Autore:
AKERS R; ALEXANDER G; ALLISON J; AMETEWEE K; ANDERSON KJ; ARCELLI S; ASAI S; AXEN D; AZUELOS G; BALL AH; BARBERIO E; BARLOW RJ; BARTOLDUS R; BATLEY JR; BEAUDOIN G; BECK A; BECK GA; BEESTON C; BEHNKE T; BELL KW; BELLA G; BENTVELSEN S; BERLICH P; BETHKE S; BIEBEL O; BLOODWORTH IJ; BOCK P; BOSCH HM; BOUTEMEUR M; BRAIBANT S; BRIGHTTHOMAS P; BROWN RM; BUIJS A; BURCKHART HJ; BURGIN R; BURGARD C; CAPDEVIELLE N; CAPILUPPI P; CARNEGIE RK; CARTER AA; CARTER JR; CHANG CY; CHARLESWORTH C; CHARLTON DG; CHU SL; CLARKE PEL; CLAYTON JC; CLOWES SG; COHEN I; CONBOY JE; COOKE OC; CUFFIANI M; DADO S; DALLAPICCOLA C; DALLAVALLE GM; DARLING C; DEJONG S; DELPOZO LA; DENG H; DITTMAR M; DIXIT MS; SILVA EDC; DUBOSCQ JE; DUCHOVNI E; DUCKECK G; DUERDOTH IP; DUNWOODY UC; EDWARDS JEG; ELCOMBE PA; ESTABROOKS PG; ETZION E; EVANS HG; FABBRI F; FABBRO B; FANTI M; FATH P; FIERRO M; FINCKEKEELER M; FISCHER HM; FISCHER P; FOLMAN R; FONG DG; FOUCHER M; FUKUI H; FURTJES A; GAGNON P; GAIDOT A; GARY JW; GASCON J; GEDDES NI; GEICHGIMBEL C; GENSLER SE; GENTIT FX; GERALIS T; GIACOMELLI G; GIACOMELLI P; GIACOMELLI R; GIBSON V; GIBSON WR; GILLIES JD; GOLDBERG J; GINGRICH DM; GOODRICK MJ; GORN W; GRANDI C; GROSS E; HAGEMANN J; HANSON GG; HANSROUL M; HARGROVE CK; HART PA; HAUSCHILD M; HAWKES CM; HEFLIN E; HEMINGWAY RJ; HERTEN G; HEUER RD; HILL JC; HILLIER SJ; HILSE T; HOBSON PR; HOCHMAN D; HOMER RJ; HONMA AK; HOWARD R; HUGHESJONES RE; IGOKEMENES P; IMRIE DC; JAWAHERY A; JEFFREYS PW; JEREMIE H; JIMACK M; JONES M; JONES RWL; JOVANOVIC P; JUI C; KARLEN D; KANZAKI J; KAWAGOE K; KAWAMOTO T; KEELER RK; KELLOGG RG; KENNEDY BW; KING B; KING J; KIRK J; KLUTH S; KOBAYASHI T; KOBEL M; KOETKE DS; KOKOTT TP; KOMAMIYA S; KOWALEWSKI R; KRESS T; KRIEGER P; VONKROGH J; KYBERD P; LAFFERTY GD; LEROY C; LETTS J; LEVINSON L; LLOYD SL; LOEBINGER FK; LONG GD; LORAZO B; LOSTY MJ; LOU XC; LUDWIG J; LUIG A; MANNELLI M; MARCELLINI S; MARKUS C; MARTIN AJ; MARTIN JP; MASHIMO T; MATTHEWS W; MATTIG P; MAUR U; MCKENNA J; MCMAHON TJ; MCNAB AL; MEIJERS F; MERRITT FS; MES H; MICHELINI A; MIDDLETON RP; MIKENBERG G; MILLER DJ; MIR R; MOHR W; MONTANARI A; MORI T; MORII M; MULLER U; NELLEN B; NIJJHAR B; ONEALE SW; OAKHAM FG; ODORICI F; OGREN HO; OLDERSHAW NJ; ORAM CJ; OREGLIA MJ; ORITO S; PALMONARI F; PANSART JP; PATRICK GN; PEARCE MJ; PHILLIPS PD; PILCHER JE; PINFOLD J; RIGBY D; RISON MG; ROBINS SA; ROBINSON D; RODNING N; RONEY JM; ROS E; ROSSI AM; ROSVICK M; ROUTENBURG P; ROZEN Y; RUNGE K; RUNOLFSSON O; RUST DR; SASAKI M; SBARRA C; SCHAILE AD; SCHAILE O; SCHARF F; SCHARFFHANSEN P; SCHENK P; SCHMITT B; SCHRODER M; SCHULTZCOULON HC; SCHULTZ P; SCHULZ M; SCHWICK C; SCHEIENING J; SCOTT WG; SETTLES M; SHEARS TG; SHEN BC; SHEPHERDTHEMISTOCLEOUS CH; SHERWOOD P; SIROLI GP; SKILLMAN A; SKUJA A; SMITH AM; SMITH TJ; SNOW GA; SOBIE R; SOLDNERREMBOLD S; SPRINGER RW; SPROSTON M; STAHL A; STARKS M; STEGMANN C; STEPHENS K; STEUERER J; STOCKHAUSEN B; STROM S; SZYMANSKI P; TAFIROUT R; TAKEDA H; TAKESHITA T; TARAS P; TAREM S; TECCHIO M; TEIXEIRADIAS P; TESCH N; THOMAS J; THOMSON MA; TOUSIGNANT O; TOWERS S; TSCHEULIN M; TSUKAMOTO T; TURCOT AS; TURNERWATSON MF; UTZAT P; VANKOOTEN R; VASSEUR G; VIKAS P; VINCTER M; WAGNER A; WAGNER DL; WARD CP; WARD DR; WARD JJ; WATKINS PM; WATSON AT; WATSON NK; WEBER P; WELLS PS; WERMES N; WILKENS B; WILSON GW; WILSON JA; WINTERER VH; WLODEK T; WOLF G; WOTTON S; WYATT TR; YEAMAN A; YEKUTIELI G; YURKO M; ZACEK V; ZEUNER W; ZORN GT;
Indirizzi:
UNIV MANCHESTER,SCHUSTER LAB,DEPT PHYS MANCHESTER M13 9PL LANCS ENGLAND UNIV BIRMINGHAM,SCH PHYS & SPACE RES BIRMINGHAM B15 2TT W MIDLANDS ENGLAND UNIV BOLOGNA,DIPARTIMENTO FIS I-40126 BOLOGNA ITALY IST NAZL FIS NUCL I-40126 BOLOGNA ITALY UNIV BONN,INST PHYS D-53115 BONN GERMANY UNIV CALIF RIVERSIDE,DEPT PHYS RIVERSIDE CA 92521 UNIV CAMBRIDGE,CAVENDISH LAB CAMBRIDGE CB3 0HE ENGLAND CARLETON UNIV,DEPT PHYS OTTAWA ON K1S 5B6 CANADA CARLETON UNIV,CTR RES PARTICLE PHYS OTTAWA ON K1S 5B6 CANADA CERN,EUROPEAN ORG PARTICLE PHYS CH-1211 GENEVA 23 SWITZERLAND UNIV CHICAGO,ENRICO FERMI INST CHICAGO IL 60637 UNIV CHICAGO,DEPT PHYS CHICAGO IL 60637 UNIV FREIBURG,FAK PHYS D-79104 FREIBURG GERMANY UNIV HEIDELBERG,INST PHYS D-69120 HEIDELBERG GERMANY INDIANA UNIV,DEPT PHYS BLOOMINGTON IN 47405 UNIV LONDON QUEEN MARY & WESTFIELD COLL LONDON E1 4NS ENGLAND UNIV LONDON UNIV COLL LONDON WC1E 6BT ENGLAND UNIV MARYLAND,DEPT PHYS COLLEGE PK MD 20742 UNIV MONTREAL,PHYS NUCL LAB MONTREAL PQ H3C 3J7 CANADA UNIV OREGON,DEPT PHYS EUGENE OR 97403 RUTHERFORD APPLETON LAB DIDCOT OX11 0QX OXON ENGLAND CENS,CEA,DAPNIA,SPP F-91191 GIF SUR YVETTE FRANCE TECHNION ISRAEL INST TECHNOL,DEPT PHYS IL-32000 HAIFA ISRAEL TEL AVIV UNIV,DEPT PHYS & ASTRON IL-69978 TEL AVIV ISRAEL UNIV TOKYO,DEPT PHYS TOKYO 113 JAPAN UNIV TOKYO,INT CTR ELEMENTARY PARTICLE PHYS TOKYO 113 JAPAN KOBE UNIV KOBE 657 JAPAN BRUNEL UNIV UXBRIDGE UB8 3PH MIDDX ENGLAND WEIZMANN INST SCI,DEPT PARTICLE PHYS IL-76100 REHOVOT ISRAEL UNIV HAMBURG,DESY,INST EXPTL PHYS 2 D-22607 HAMBURG GERMANY UNIV VICTORIA,DEPT PHYS VICTORIA BC V8W 3P6 CANADA UNIV BRITISH COLUMBIA,DEPT PHYS VANCOUVER BC V6T 1Z1 CANADA UNIV ALBERTA,DEPT PHYS EDMONTON AB T6G 2J1 CANADA DUKE UNIV,DEPT PHYS DURHAM NC 27708 RHEIN WESTFAL TH AACHEN,INST PHYS 3 D-52056 AACHEN GERMANY
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 2, volume: 67, anno: 1995,
pagine: 203 - 211
SICI:
0170-9739(1995)67:2<203:SFHCAF>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
E+E ANNIHILATION; SUPERSYMMETRIC PARTICLES; LIGHT GLUINOS; DECAYS; MASS; Z0; COLLIDER; DETECTOR; ENERGY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
40
Recensione:
Indirizzi per estratti:
Citazione:
R. Akers et al., "SEARCH FOR HEAVY CHARGED-PARTICLES AND FOR PARTICLES WITH ANOMALOUS CHARGE IN E(-) COLLISIONS AT LEP()E()", Zeitschrift fur Physik. C, Particles and fields, 67(2), 1995, pp. 203-211

Abstract

Using the OPAL data accumulated in 1991-1993 amounting to 74 pb(-1) of integrated luminosity, corresponding to 1.64 x 10(6) selected multi-hadronic events, a search has been performed for charged particles with unusual mass or unusual charge. The mass was determined from a combination of momentum and ionization energy loss measurements. No isolation criteria were applied to the tracks examined, so that both isolatedparticles and particles produced in jets were valid candidates. For particles with charge Q/e = -1, one candidate with a mass of approximately 4.2 GeV/c(2) was found, which is compatible with the background rate expected according to a Monte Carlo simulation. The implications ofthis search for the mass limits of a conjectured stable or quasi-stable charged gluino composite (($) over tilde gq ($) over bar q')(+/-) are discussed. Limits are also presented for the production of fractionally-charged particles with Q/e = +/-2/3 and +/-4/3 as well as for particles with Q/e = +/-2.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/12/20 alle ore 07:09:19