COMPARISONS OF THE PROPERTIES OF FINAL-STATE PHOTONS IN HADRONIC Z(0)DECAYS WITH PREDICTIONS FROM MATRIX ELEMENT CALCULATIONS

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 EDE 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 SW 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 R 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 LAFOUX H LAHMANN R LAI WP LAUBER J LAYTER JG LEBLANC P LEE AM LEFEBVRE E LELLOUCH D 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 AI MEIJERS F MERITT 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 PLANE DE POFFENBERGER P POLI B POSTHAUS A PRITCHARD TW PRZYSIEZNIAK H REDMOND MW REES DL 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 SCHUTZ P SCHULZ M SCHWICK C SCHWIENING 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 STAMM J STARKS M STEGMANN C STEPHENS K STEURER J STOCKHAUSEN B STROM D SZYMANSKI P TAFIROUT R TAKEDA H TAKESHITA T TARAS P TAREM S TECCHIO M TEIXEIRADIAS P TESCH N 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., COMPARISONS OF THE PROPERTIES OF FINAL-STATE PHOTONS IN HADRONIC Z(0)DECAYS WITH PREDICTIONS FROM MATRIX ELEMENT CALCULATIONS, Zeitschrift fur Physik. C, Particles and fields, 67(1), 1995, pp. 15-26
Citations number
41
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
67
Issue
1
Year of publication
1995
Pages
15 - 26
Database
ISI
SICI code
0170-9739(1995)67:1<15:COTPOF>2.0.ZU;2-C
Abstract
The properties of hadronic Z(0) decays with final state photons, measu red with OPAL at LEP, have been compared with predictions from two dif ferent matrix element calculations of O(alpha alpha(s)). Two calculati ons, GNJETS and EEPRAD, have been investigated which use different sch emes to restrict the phase space around the poles of the cross section . Assuming the E0-JADE jet definition, both calculations describe the data well in large regions of phase space for gamma(cut) values around 0.06. For very large and very small jet-photon masses some deviations from the predictions have been found, indicating the importance of hi gher order corrections. Significant differences between the calculatio ns are only apparent in the predicted rate of 1-jet plus photon events . The rate is higher in GNJETS which reproduces the data better than E EPRAD.