TESTS QED AT LEP ENERGIES USING E(-)-]GAMMA-GAMMA(GAMMA) AND E(+)E(-)-]L(+)L(-)GAMMA-GAMMA()E()

Authors
ACCIARRI M ADAM A ADRIANI O AGUILARBENITEZ M AHLEN S ALPAT B ALCARAZ J ALLABY J ALOISIO A ALVERSON G ALVIGGI MG AMBROSI G AN Q ANDERHUB H ANDREEV VP ANGELESCU T ANTREASYAN D AREFIEV A AZEMOON T AZIZ T BABA PVKS BAGNAIA P BAKSAY L BALL RC BANERJEE S BANICZ K BARILLERE R BARONE L BARTALINI P BASCHIROTTO A BASILE M BATTISTON R BAY A BECATTINI F BECKER U BEHNER F BENCZE GL BERDUGO J BERGES P BERTUCCI B BETEV BL BIASINI M BILAND A BILEI GM BIZZARRI R BLAISING JJ BOBBINK GJ BOCK R BOHM A BORGIA B BOUCHAM A BOURILKOV D BUYTENHUIJS A CAI XD CAPELL M ROMEO GC CARIA M CARLINO G CARTACCI AM CASAUS J CASTELLINI G CASTELLO R CAVALLO N CECCHI C CERRADA M CESARONI F CHAMIZO M CHAN A CHANG YH CHATURVEDI UK CHEMARIN M CHEN A CHEN C CHEN G CHEN M CHEN HF CHEN HS CHEN M CHIEFARI G CHIEN CY CHOI MT CIFARELLI L CINDOLO F CIVININI C CLARE I CLARE R COAN TE COHN HO COIGNET G COLINO N COMMICHAU V COSTANTINI S COTOROBAI F DELACRUZ B CUI XT CUI XY DAI TS DALESSANDRO R DEASMUNDIS R DEBOECK H DEGRE A DEITERS K DENES E DENES P DENOTARISTEFANI F DIBITONTO D DIEMOZ M DIONISI C DITTMAR M DOMINGUEZ A DORIA A DORNE I DOVA MT DRAGO E DUCHESNEAU D DUINKER P DURAN I DUTTA S EASO S EFREMENKO Y ELMAMOUNI H ENGLER A EPPLING FJ ERNE FC ERNENWEIN JP EXTERMANN P FABBRETTI R FABRE M FACCINI R FALCIANO S FAVARA A FAY J FELCINI M FERGUSON T FERNANDEZ D FERNANDEZ G FERRONI F FESEFELDT H FIANDRINI E FIELD JH FILTHAUT F FISHER PH FORCONI G FREDJ L FREUDENREICH K GAILLOUD M GALAKTIONOV Y GANGULI SN GARCIAABIA P GAU SS GENTILE S GERALD J GHEORDANESCU N GIAGU S GOLDFARB S GOLDSTEIN J GONG ZF GONZALEZ E GOUGAS A GOUJON D GRATTA G GRUENEWALD MW GU C GUANZIROLI M GUPTA VK GURTU A GUSTAFSON HR GUTAY LJ HARTMANN B HASAN A HE JT HEBBEKER T HERVE A HILGERS K VANHOEK WC HOFER H HOORANI H HOU SR HU G ILYAS MM INNOCENTE V JANSSEN H JIN BN JONES LW DEJONG P JOSAMUTUBERRIA I KASSER A KHAN RA KAMYSHKOV Y KAPINOS P KAPUSTINSKY JS KARYOTAKIS Y KAUR M KHOKHAR S KIENZLEFOCACCI MN KIM D KIM JK KIM SC KIM YG KINNISON WW KIRKBY A KIRKBY D KIRKBY J KIRSCH S KITTEL W KLIMENTOV A KONIG AC KOFFEMAN E KORNADT O KOUTSENKO V KOULBARDIS A KRAEMER RW KRAMER T KRENZ W KUIJTEN H KUNIN A DEGUEVARA PL LANDI G LAPOINT C LASSILAPERINI K LAURIKAINEN P LEBEAU M LEBEDEV A LEBRUN P LECOMTE P LECOQ J LECOQ P LECOULTRE P LEE JS LEE KY LEGGETT C LEGOFF JM LEISTE R LENTI M LEONARDI E LEVTCHENKO P LI C LIEB E LIN WT LINDE FL LINDEMANN B LISTA L LIU Y LIU ZA LOHMANN W LONGO E LU W LU YS LUBELSMEYER K LUCI C LUCKEY D LUDOVICI L LUMINARI L LUSTERMANN W MA WG MACCHIOLO A MAITY M MALGERI L MALIK R MALININ A MANA C MANGLA S MAOLINBAY M MARCHESINI P MARIN A MARTIN JP MARZANO F MASSARO GGG MAZUMDAR K MCNALLY D MELE S MERK M MEROLA L MESCHINI M METZGER WJ MI Y MIHUL A VANMIL AJW MIR Y MIRABELLI G MNICH J MOLLER M MONACO V MONTELEONI B MOORE R MORAND R MORGANTI S MOULAI NE MOUNT R MULLER S NAGY E NAHN S NAPOLITANO M NESSITEDALDI F NEWMAN H NIAZ MA NIPPE A NOWAK H ORGANTINI G OSTONEN R PANDOULAS D PAOLETTI S PAOLUCCI P PASCALE G PASSALEVA G PATRICELLI S PAUL T PAULUZZI M PAUS C PAUSS F PEI YJ PENSOTTI S PERRETGALLIX D PEVSNER A PICCOLO D PIERI M PINTO JC PIROUE PA PISTOLESI E PLYASKIN V POHL M POJIDAEV V POSTEMA H PRODUIT N QURESHI KN RAGHAVAN R RAHALCALLOT G RANCOITA PG RATTAGGI M RAVEN G RAZIS P READ K REDAELLI M REN D RIND O RIZVI HA RO S ROBOHM A RODIN J RODRIGUEZ FJ ROE BP ROHNER M ROHNER S ROMERO L ROSIERLEES S ROSSELET P VANROSSUM W ROTH S RUBIO JA RYKACZEWSKI H SALICIO J SALICIO JM SANCHEZ E SANTOCCHIA A SARAKINOS ME SARKAR S SARTORELLI G SASSOWSKY M SAUVAGE G SCHAFER C SCHEGELSKY V SCHMITZ D SCHMITZ P SCHNEEGANS M SCHOENEICH B SCHOLZ N SCHOPPER H SCHOTANUS DJ SCHULTE R SCHULTZE K SCHWENKE J SCHWERING G SCIACCA C SEHGAL R SEILER PG SENS JC SERVOLI L SHEVCHENKO S SHIVAROV N SHOUTKO V SHUKLA J SHUMILOV E SON D SOPCZAK A SOULIMOV V SMITH B SPICKERMANN T SPILLANTINI P STEUER M STICKLAND DP STICOZZI F STONE H STOYANOV B STRAUCH K SUDHAKAR K SULTANOV G SUN LZ SUSINNO GF SUTER H SWAIN JD SYED AA TANG XW TAYLOR L TIMELLINI R TING SCC TING SM TOKER O TONUTTI M TONWAR SC TOTH J TSAREGORODTSEV A TSIPOLITIS G TULLY C TUCHSCHERER H ULBRICHT J URBAN L UWER U VALENTE E VANDEWALLE RT VETLITSKY I VIERTEL G VIKAS P VIKAS U VIVARGENT M VOELKERT R VOGEL H VOGT H VOROBIEV I VOROBYOV AA VOROBYOV AA VUILLEUMIER L WADHWA M WALLRAFF W WANG JC WANG XL WANG YF WANG ZM WEBER A WEILL R WILLMOTT C WITTGENSTEIN F WU SX WYNHOFF S XU J XU ZZ YANG BZ YANG CG YANG G YAO XY YE CH YE JB YE Q YEH SC YOU JM YUNUS N YZERMAN M ZACCARDELLI C ZALITE A ZEMP P ZENG JY ZENG M ZENG Y ZHANG Z ZHANG ZP ZHOU B ZHOU GJ ZHOU JF ZHOU Y ZHU GY ZHU RY ZICHICHI A VANDERZWAAN BCC
Citation
M. Acciarri et al., TESTS QED AT LEP ENERGIES USING E(-)-]GAMMA-GAMMA(GAMMA) AND E(+)E(-)-]L(+)L(-)GAMMA-GAMMA()E(), Physics letters. Section B, 353(1), 1995, pp. 136-144
Citations number
30
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
353
Issue
1
Year of publication
1995
Pages
136 - 144
Database
ISI
SICI code
0370-2693(1995)353:1<136:TQALEU>2.0.ZU;2-9
Abstract
Total and differential cross sections for the process e(+)e(-) --> gam ma gamma(gamma), and the total cross section for the process e(+)e(-) --> gamma gamma gamma, are measured at energies around 91 GeV using th e data collected with the L3 detector from 1991 to 1993. We set lower limits, at 95% CL, on a contact interaction energy scale parameter Lam bda > 602 GeV, on the mass of an excited electron m(c) > 146 GeV and on the QED cut-off parameters Lambda(+) > 149 GeV and Lambda(-) > 143 GeV. Upper limits are also set on the branching fractions of Z decayin g into gamma gamma, pi degrees gamma and eta gamma of 5.2 x 10(-5), 5. 2 x 10(-5) and 7.6 x 10(-5) respectively. The reactions e(+)e(-) --> r ho(+)rho(-)n gamma (rho = e, mu, tau) are studied using the data colle cted from 1990 to 1994. The data are consistent with the QED expectati ons.