SEARCH FOR HEAVY CHARGED-PARTICLES AND FOR PARTICLES WITH ANOMALOUS CHARGE IN E(-) COLLISIONS AT LEP()E()

Authors
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
Citation
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
Citations number
40
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
67
Issue
2
Year of publication
1995
Pages
203 - 211
Database
ISI
SICI code
0170-9739(1995)67:2<203:SFHCAF>2.0.ZU;2-Y
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-h adronic events, a search has been performed for charged particles with unusual mass or unusual charge. The mass was determined from a combin ation of momentum and ionization energy loss measurements. No isolatio n criteria were applied to the tracks examined, so that both isolated particles and particles produced in jets were valid candidates. For pa rticles with charge Q/e = -1, one candidate with a mass of approximate ly 4.2 GeV/c(2) was found, which is compatible with the background rat e expected according to a Monte Carlo simulation. The implications of this search for the mass limits of a conjectured stable or quasi-stabl e charged gluino composite (($) over tilde gq ($) over bar q')(+/-) ar e discussed. Limits are also presented for the production of fractiona lly-charged particles with Q/e = +/-2/3 and +/-4/3 as well as for part icles with Q/e = +/-2.