MEASUREMENT OF THE PHOTON STRUCTURE-FUNCTION F(2)(GAMMA) IN THE REACTION E--]E+E-+HADRONS AT LEP(E)

Authors
AKERS R ALEXANDER G ALLISON J ANDERSON KJ ARCELLI S ASTBURY A AXEN D AZUELOS G BAINES JTM BALL AH BANKS J BARLOW RJ BARNETT S BARTOLDUS R BATLEY JR BEAUDOIN G BECK A BECK GA BECKER J BEESTON C BEHNKE T BELL KW BELLA G BENTKOWSKI P BERLICH P BETHKE S BIEBEL O BLOODWORTH IJ BOCK P BODEN B BOSCH HM BOUTEMEUR M BREUKER H BRIGHTTHOMAS P BROWN RM BUIJS A BURCKHART HJ BURGARD C CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLTON DG CHU SL CLARKE PEL CLAYTON JC COHEN I CONBOY JE COOPER M COUPLAND M CUFFIANI M DADO S DALLAVALLE GM DEJONG S DELPOZO LA DENG H DIECKMANN A DITTMAR M DIXIT MS SILVA EDE DUBOSCQ JE DUCHOVNI E DUCKECK G DUERDOTH IP DUMAS DJP ELCOMBE PA ESTABROOKS PG ETZION E EVANS HG FABBRI F FABBRO B FIERRO M FINCKEKEELER M FISCHER HM FONG DG FOUCHER M GAIDOT A GARY JW GASCON J GEDDES NI GEICHGIMBEL C GENSLER SW GENTIT FX GIACOMELLI G GIACOMELLI R GIBSON V GIBSON WR GILLIES JD GOLDBERG J GINGRICH DM GOODRICK MJ GORN W GRANDI C GRANT FC HAGEMANN J HANSON GG HANSROUL M HARGROVE CK HARRISON PF HART J HATTERSLEY PM HAUSCHILD M HAWKES CM HEFLIN E HEMINGWAY RJ HERTEN G HEUER RD HILL JC HILLIER SJ HILSE T HINSHAW DA HOBBS JD HOBSON PR HOCHMAN D HOMER RJ HONMA AK HUGHESJONES RE HUMBERT R IGOKEMENES P IHSSEN H IMRIE DC JANISSEN AC JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JONES M JONES RWL JOVANOVIC P JUI C KARLEN D KAWAGOE K KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KING J KLUTH S KOBAYASHI T KOETKE DS KOKOTT TP KOMAMIYA S KRAL JF KOWALEWSKI R VONKROGH J KROLL J KYBERD P LAFFERTY GD LAFOUX H LAHMANN R LAUBER J LAYTER JG LEBLANC P LEE AM LEFEBVRE E LEHTO MH LELLOUCH D LEROY C LETTS J LEVINSON L LLOYD SL LOEBINGER FK LORAH JM LORAZO B LOSTY MJ LOU XC LUDWIG J LUIG A MANNELLI M MARCELLINI S MARKUS C MARTIN AJ MARTIN JP MASHIMO T MATTIG P MAUR U MCKENNA J MCMAHON TJ MCNUTT JR MEIJERS F MENSZNER D MERRITT FS MES H MICHELINI A MIDDLETON RP MIKENBERG G MILDENBERGER J MILLER DJ MIR R MOHR W MOISAN C MONTANARI A MORI T MORII M MULLER U NELLEN B NGUYEN HH ONEALE SW OAKHAM FG ODORICI F OGREN HO ORAM CJ OREGLIA MJ ORITO S PANSART JP PANZERSTEINDEL B PASCHIEVICI P PATRICK GN PAZJAOSHVILI N PEARCE MJ PFISTER P PILCHER JE PINFOLD J PITMAN D PLANE DE POFFENBERGER P POLI B PRITCHARD TW PRZYSIEZNIAK H QUAST G REDMOND MW REES DL RICHARDS GE RISON M ROBINS SA ROBINSON D ROLLNIK A RONEY JM ROS E ROSSBERG S ROSSI AM ROSVICK M ROUTENBURG P RUNGE K RUNOLFSSON O RUST DR SASAKI M SBARRA C SCHAILE AD SCHAILE O SCHAPPERT W SCHARF F SCHARFFHANSEN P SCHENK P SCHMITT B VONDERSHMITT H SCHRODER 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 SPRINGER RW SPROSTON M STAHL A STEGMANN C STEPHENS K STEUERER J STROHMER R STROM D TAKEDA H TAKESHITA T TAREM S TECCHIO M TEIXEIRADIAS P TESCH N THOMSON MA TORRENTELUJAN E TOWERS S TRANSTROMER G TRESILIAN NJ TSUKAMOTO T TURNER MF VANDENPLAS D VANKOOTEN R VANDALEN GJ VASSEUR G WAGNER A WAGNER DL WAHL C WARD CP WARD DR WARD JJ WATKINS PM WATSON AT WATSON NK WEBER M WEBER P WELLS PS WERMES N WHALLEY MA WILKENS B WILSON GW WILSON JA WINTERER VH WLODEK T WOLF G WOTTON S WYATT TR YAARI R YEAMAN A YEKUTIELI G YURKO M ZEUNER W ZORN GT
Citation
R. Akers et al., MEASUREMENT OF THE PHOTON STRUCTURE-FUNCTION F(2)(GAMMA) IN THE REACTION E--]E+E-+HADRONS AT LEP(E), Zeitschrift fur Physik. C, Particles and fields, 61(2), 1994, pp. 199-208
Citations number
38
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
61
Issue
2
Year of publication
1994
Pages
199 - 208
Database
ISI
SICI code
0170-9739(1994)61:2<199:MOTPSF>2.0.ZU;2-W
Abstract
We present measurements of the hadronic photon structure function F2ga mma(x), in two Q2 ranges with mean values of 5.9 GeV2 and 14.7 GeV2. T he data were taken by the OPAL experiment at LEP, with square-root s c lose to the Z0 mass and correspond to an integrated e+ e- luminosity o f 44.8 pb-1. In the context of a QCD-based model we find the quark tra nsverse momentum cutoff separating the vector meson dominance (VMD) an d perturbative QCD regions to be 0.27 +/- 0.10 GeV. We confirm that th ere is a significant pointlike component of the photon when the probe photon has Q2 > 4 GeV2. Our measurements extend to lower values of x t han any previous experiment, and no increase of F2gamma(x) is observed .