PHOTOPRODUCTION OF PSI(2S) MESONS AT HERA

Authors
ADLOFF C AID S ANDERSON M ANDREEV V ANDRIEU B ARKADOV V ARNDT C AYYAZ I BABAEV A BAHR J BAN J BARANOV P BARRELET E BARSCHKE R BARTEL W BASSLER U BECK M BEHREND HJ BEIER C BELOUSOV A BERGER C BERNARDI G BERTRANDCOREMANS G BEYER R BIDDULPH P BIZOT JC BORRAS K BOUDRY V BOUROV S BRAEMER A BRAUNSCHWEIG W BRISSON V BROWN DP BRUCKNER W BRUEL P BRUNCKO D BRUNE C BRUGER J BUSSER FW BUNIATIAN A BURKE S BUSCHHORN G CALVET D CAMPBELL AJ CARLI T CHARLET M CLARKE D CLERBAUX B COCKS S CONTRERAS JG CORMACK C COUGHLAN JA COUSINOU MC COX BE COZZIKA G CUSSANS DG CVACH J DAGORET S DAINTON JB DAU WD DAUM K DAVID M DEROECK A DEWOLF EA DELCOURT B DIRKMANN M DIXON P DLUGOSZ W DONOVAN KT DOWELL JD DROUTSKOI A EBERT J EBERT TR ECKERLIN G EFREMENKO V EGLI S EICHLER R EISELE F EISENHANDLER E ELSEN E ERDMANN M 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 GABATHULER E GABATHULER K GAEDE F GARVEY J GAYLER J GEBAUER M GERHARDS R GLAZOV A GOERLICH L GOGITIDZE N GOLDBERG M GONZALEZPINEIRO B 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 HENGSTMANN S HENSCHEL H HEREMANS R HERYNEK I HEWITT K HILLER KH HILTON CD HLADKY J HOPPNER M HOFFMANN D HOLTON T HORISBERGER R HUDGSON VL HUTTE M IBBOTSON M ISSEVER C ITTERBECK H JACQUET M JAFFRE M JANOTH J JANSEN DM JONSSON L JOHNSON DP JUNG H KALMUS PIP KANDER M KANT D 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 KOHNE JH KOLANOSKI H KOLYA SD KORBEL V KOSTKA P KOTELNIKOV SK KRAMERKAMPER T KRASNY MW KREHBIEL H KRUCKER D KUPPER A KUSTER H KUHLEN M KURCA T LAFORGE B LAHMANN R LANDON MPJ LANGE W LANGENEGGER U LEBEDEV A LEHNER F LEMAITRE V LEVONIAN S LINDSTROEM M LIPINSKI J LIST B LOBO G LOPEZ GC LUBIMOV V LUKE D LYTKIN L MAGNUSSEN N MAHLKEKRUGER H MALINOVSKI E MARACEK R MARAGE P MARKS J MARSHALL R MARTENS J MARTIN G MARTIN R MARTYN HU MARTYNIAK J MAXFIELD SJ MCMAHON SJ MEHTA A MEIER K MERKEL P 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 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 NUNNEMANN T OBERLACK H OLSSON JE OZEROV D PALMEN P PANARO E PANITCH A PASCAUD C PASSAGGIO S PATEL GD PAWLETTA H PEPPEL E PEREZ E PHILLIPS JP PIEUCHOT A PITZL D POSCHL R POPE G POVH B RABBERTZ K REIMER P RICK H RIESS S RIZVI E ROBMANN P ROOSEN R ROSENBAUER K ROSTOVTSEV A ROUSE F ROYON C RUTER K RUSAKOV S RYBICKI K SANKEY DPC SCHACHT P SCHEINS J SCHIEK S SCHLEIF S VONSCHLIPPE W SCHMIDT D SCHMIDT G SCHOEFFEL L SCHONING A SCHRODER V SCHUHMANN E SCHULTZCOULON HC SCHWAB B SEFKOW F SEMENOV A SHEKELYAN V SHEVIAKOV I SHTARKOV LN SIEGMON G SIEWERT U SIROIS Y SKILLICORN IO SLOAN T SMIRNOV P SMITH M SOLOCHENKO V SOLOVIEV Y SPECKA A SPIEKERMANN J SPIELMAN S SPITZER H SQUINABOL F STEFFEN P STEINBERG R STEINHART J STELLA B STELLBERGER A STIEWE J STOLZE K STRAUMANN U STRUCZINSKI W SUTTON JP SWART M TAPPROGGE S TASEVSKY M TCHERNYSHOV V TCHETCHELNITSKI S THEISSEN J THOMPSON G THOMPSON PD TOBIEN N TODENHAGEN R TRUOL P TSIPOLITIS G TURNAU J TZAMARIUDAKI E UELKES P USIK A VALKAR S VALKAROVA A VALLEE C VANESCH P VANMECHELEN P VANDENPLAS D VAZDIK Y VERRECCHIA P VILLET G WACKER K WAGENER A WAGENER M WALLNY R WALTER T WAUGH B WEBER G WEBER M WEGENER D WEGNER A WENGLER T WERNER M WEST LR WIESAND S WILKSEN T WILLARD S WINDE M WINTER GG WITTEK C WOBISCH M WOLLATZ H WUNSCH E ZACEK J ZALESAK J ZARBOCK D ZHANG Z ZHOKIN A ZINI P ZOMER F ZSEMBERY J ZURNEDDEN M
Citation
C. Adloff et al., PHOTOPRODUCTION OF PSI(2S) MESONS AT HERA, Physics letters. Section B, 421(1-4), 1998, pp. 385-394
Citations number
25
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
421
Issue
1-4
Year of publication
1998
Pages
385 - 394
Database
ISI
SICI code
0370-2693(1998)421:1-4<385:POPMAH>2.0.ZU;2-Y
Abstract
Quasi-elastic (z > 0.95) photo-production of psi(2S) mesons has been o bserved at HERA for photon-proton centre-of-mass energies in the range 40 to 160 GeV. The psi(2S) mesons were identified through their decay s to l(+)l(-), and to J/psi pi(+)pi(-), where the J/psi subsequently d ecays to l(+)l(-), the lepton l being either a muon or an electron. Th e cross-section for quasi-elastic photoproduction was measured to be ( 18.0 +/- 2.8(stat) +/- 3.0(syst)) nb at a photon-proton centre-of-mass energy of 80 GeV. The ratio of the psi(2S) to J/psi quasi-elastic cro ss-sections is (0.150 +/- 0.027(stat) +/- 0.022(syst)). (C) 1998 Elsev ier Science B.V.