SCALE INFLUENCE ON THE ENERGY-DEPENDENCE OF PHOTON-PROTON CROSS-SECTIONS

Authors
AID S ANDERSON M ANDREEV V ANDRIEU B BABAEV A BAHR J BAN J BAN Y BARANOV P BARRELET E BARSCHKE R BARTEL W BARTH M BASSLER U BECK HP BECK M BEHREND HJ BELOUSOV A BERGER C BERNARDI G BERTRANDCOREMANS G BESANCON M BEYER R BIDDULPH P BISPHAM P BIZOT JC BLOBEL V BORRAS K BOUDRY V BRAEMER A BRAUNSCHWEIG W BRISSON V BRUCKNER W BRUEL P BRUNCKO D BRUNE C BUCHHOLZ R BUNGENER L BURGER J BUSSER FW BUNIATIAN A BURKE S BURTON MJ CALVET D CAMPBELL AJ CARLI T CHARLET M CLARKE D CLEGG AB CLERBAUX B COCKS S CONTRERAS JG CORMACK C COUGHLAN JA COURAU A COUSINOU MC COZZIKA G CRIEGEE L CUSSANS DG CVACH J DAGORET S DAINTON JB DAU WD DAUM K DAVID M DAVIS CL DELCOURT B DEROECK A DEWOLF EA DIRKMANN M DIXON P DINEZZA P DLUGOSZ W DOLLFUS C DONOVAN KT DOWELL JD DREIS HB DROUTSKOI A DUNGER O DUHM H EBERT J EBERT TR ECKERLIN G EFREMENKO V EGLI S EICHLER R EISELE F EISENHANDLER E ELSEN E ERDMANN M ERDMANN W FAHR AB FAVART L FEDOTOV A FELST R FELTESSE J FERENCEI J FERRAROTTO F FLAMM K FLEISCHER M FLIESER M FLUGGE G FOMENKO A FORMANEK J FOSTER JM FRANKE G FRETWURST E GABATHULER E GABATHULER K GAEDE F GARVEY J GAYLER J GEBAUER M GENZEL H GERHARDS R GLAZOV A GOERLICH L GOLDNER D GOLECBIERNAT K GONZALEZPINEIRO B GOGITIDZE N GOLDBERG M GORELOV I GRAB C GRASSLER H GREENSHAW T GRIFFITHS RK GRINDHAMMER G GRUBER A GRUBER C HADIG T HAIDT D HAJDUK L HALLER T HAMPEL M HAYNES WJ HEINEMANN B HEINZELMANN G HENDERSON RCW HENSCHEL H HERYNEK I HESS MF HEWITT K HILDESHEIM W HILLER KH HILTON CD HLADKY J HOPPNER M HOFFMANN D HOLTOM T HORISBERGER R HUDGSON VL HUTTE M IBBOTSON M ITTERBECK H JACHOLKOWSKA A JACOBSSON C JAFFRE M JANOTH J JANSEN DM JANSEN T JONSSON L JOHNSON DP JUNG H KALMUS PIP KANDER M KANT D KASCHOWITZ R KATHAGE U KATZY J KAUFMANN HH KAUFMANN O KAUSCH M KAZARIAN S KENYON IR KERMICHE S KEUKER C KIESLING C KLEIN M KLEINWORT C KNIES G KOHLER T KOHNE JH KOLANOSKI H KOLYA SD KORBEL V KOSTKA P KOTELNIKOV SK KRAMERKAMPER T KRASNY MW KREHBIEL H KRUCKER D KUSTER H KUHLEN M KURCA T KURZHOFER J LACOUR D LAFORGE B LANDON MPJ LANGE W LANGENEGGER U LEBEDEV A LEHNER F LEVONIAN S LINDSTROM G LINDSTROEM M LINSEL F LIPINSKI J LIST B LOBO G LOCH P LOMAS JW LOPEZ GC LUBIMOV V LUKE D LYTKIN L MAGNUSSEN N MALINOVSKI E MARACEK R MARAGE P MARKS J MARSHALL R MARTENS J MARTIN G MARTIN R MARTYN HU MARTYNIAK J MAVROIDIS T MAXFIELD SJ MCMAHON SJ MEHTA A MEIER K METLICA F MEYER A MEYER A MEYER H MEYER J MEYER PO MIGLIORI A MIKOCKI S MILSTEAD D MOECK J MOREAU F MORRIS JV MROCZKO E MULLER D MULLER G MULLER K MURIN P NAGOVIZIN V NAHNHAUER R NAROSKA B NAUMANN T NEGRI I NEWMAN PR NEWTON D NGUYEN HK NICHOLLS TC NIEBERGALL F NIEBUHR C NIEDZBALLA C NIGGLI H NOWAK G NOYES GW NUNNEMANN T NYBERGWERTHER M OAKDEN M OBERLACK H OLSSON JE OZEROV D PALMEN P PANARO E PANITCH A PASCAUD C PATEL GD PAWLETTA H PEPPEL E PEREZ E PHILLIPS JP PIEUCHOT A PITZL D POPE G POVH B PRELL S RABBERTZ K RADEL G REIMER P REINSHAGEN S RICK H RIEPENHAUSEN F RIESS S RIZVI E ROBERTSON SM ROBMANN P ROLOFF HE ROOSEN R ROSENBAUER K ROSTOVTSEV A ROUSE F ROYON C RUTER K RUSAKOV S RYBICKI K SANKEY DPC SCHACHT P SCHIEK S SCHLEIF S SCHLEPER P VONSCHLIPPE W SCHMIDT D SCHMIDT G SCHONING A SCHRODER V SCHUHMANN E SCHWAB B SEFKOW F SELL R SEMENOV A SHEKELYAN V SHEVIAKOV I SHTARKOV LN SIEGMON G SIEWERT U SIROIS Y SKILLICORN IO SMIRNOV P SOLOCHENKO V SOLOVIEV Y SPECKA A SPIEKERMANN J SPIELMAN S SPITZER H SQUINABOL F STEFFEN P STEINBERG R STEINER H STEINHART J STELLA B STELLBERGER A STIER J STIEWE J STOSSLEIN U STOLZE K STRAUMANN U STRUCZINSKI W SUTTON JP TAPPROGGE S TASEVSKY M TCHERNYSHOV V TCHETCHELNITSKI S THEISSEN J THIEBAUX C THOMPSON G TODENHAGEN R TRUOL P TSIPOLITIS G TURNAU J TUTAS J TZAMARIUDAKI E UELKES P USIK A VALKAR S VALKAROVA A VALLEE C VANDENPLAS D VANESCH P VANMECHELEN P VAZDIK Y VERRECCHIA P VILLET G WACKER K WAGENER A WAGENER M WAUGH B WEBER G WEBER M WEGENER D WEGNER A WENGLER T WERNER M WEST LR WILKSEN T WILLARD S WINDE M WINTER GG WITTEK C WOBISCH M WUNSCH E ZACEK J ZARBOCK D ZHANG Z ZHOKIN A ZINI P ZOMER F ZSEMBERY J ZUBER K ZURNEDDEN M
Citation
S. Aid et al., SCALE INFLUENCE ON THE ENERGY-DEPENDENCE OF PHOTON-PROTON CROSS-SECTIONS, Physics letters. Section B, 392(1-2), 1997, pp. 234-242
Citations number
35
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
392
Issue
1-2
Year of publication
1997
Pages
234 - 242
Database
ISI
SICI code
0370-2693(1997)392:1-2<234:SIOTEO>2.0.ZU;2-3
Abstract
The scale dependence of the evolution of photoproduction cross section s with the photon-proton centre of mass energy W is studied using low Q(2) < 0.01 GeV2 e(+)p interactions collected by the Ill experiment at HERA. The value of the largest transverse momentum of a charged parti cle in the photon fragmentation region is used to define the hard scal e. The slope of the W dependence of the cross section is observed to i ncrease steeply with increasing transverse momentum. The result is com pared to measurements of the Q(2) evolution of the W dependence of the virtual photon-proton cross section. Interpretations in terms of QCD and in terms of Regge phenomenology are discussed.