A SEARCH FOR SQUARKS OF RP-VIOLATING SUSY AT HERA

Authors
AID S ANDREEV V ANDRIEU B APPUHN RD ARPAGAUS M BABAEV A BAHR J BAN J BAN Y BARANOV P BARRELET E BARSCHKE R BARTEL W BARTH M BASSLER U BECK HP BEHREND HJ BELOUSOV A BERGER C BERNARDI G BERNET R BERTRANDCOREMANS G BESANCON M BEYER R BIDDULPH P BISPHAM P BIZOT JC BLOBEL V BORRAS K BOTTERWECK F BOUDRY V BRAEMER A BRAUNSCHWEIG W BRISSON V BRUEL P BRUNCKO D BRUNE C BUCHHOLZ R BUNGENER L BURGER J BUSSER FW BUNIATIAN A BURKE S BURTON MJ BUSCHHORN G CAMPBELL AJ CARLI T CHARLES F 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 DOWELL JD DREIS HB DROUTSKOI A DULLMANN D DUNGER O DUHM H EBERT J EBERT TR ECKERLIN G EFREMENKO V EGLI S EICHLER R EISELE F EISENHANDLER E ELLISON RJ ELSEN E ERDMANN M ERDMANN W EVRARD E FAHR AB FAVART L FEDOTOV A FEEKEN D FELST R FELTESSE J FERENCEI J FERRAROTTO F FLAMM K FLEISCHER M FLIESER M FLUGGE G FOMENKO A FOMINYKH B FORMANEK J FOSTER JM FRANKE G FRETWURST E GABATHULER E GABATHULER K GAEDE F GARVEY J GAYLER J GEBAUER M GELLRICH A GENZEL H GERHARDS R GLAZOV A GOERLACH U GOERLICH L GOGITIDZE N GOLDBERG M GOLDNER D GOLECBIERNAT K GONZALEZPINEIRO B GORELOV I GRAB C GRASSLER H GRASSLER R GREENSHAW T GRIFFITHS R GRINDHAMMER G GRUBER A GRUBER C HAACK J HAIDT D HAJDUK L HAMPEL M HAYNES WJ HEINZELMANN G HENDERSON RCW HENSCHEL H HERYNEK I HESS MF HILDESHEIM W HILLER KH HILTON CD HLADKY J HOEGER KC HOPPNER M HOFFMANN D HOLTOM T HORISBERGER R HUDGSON VL HUTTE M HUFNAGEL H IBBOTSON M ITTERBECK H JACHOLKOWSKA A JACOBSSON C JAFFRE M JANOTH J JANSEN T JONSSON L JOHANNSEN K JOHNSON DP JOHNSON L JUNG H KALMUS PIP KANDER M KANT D KASCHOWITZ R KATHAGE U KATZY J KAUFMANN HH KAUFMANN O KAZARIAN S KENYON IR KERMICHE S KEUKER C KIESLING C KLEIN M KLEINWORT C KNIES G KOHLER T KOHNE JH KOLANOSKI H KOLE F KOLYA SD KORBEL V KORN M KOSTKA P KOTELNIKOV SK KRAMERKAMPER T KRASNY MW KREHBIEL H KRUCKER D KRUGER U KRUNERMARQUIS U KUSTER H KUHLEN M KURCA T KURZHOFER J LACOUR D LAFORGE B LANDER R LANDON MPJ LANGE W LANGENEGGER U LAPORTE JF LEBEDEV A LEHNER F LEVERENZ C LEVONIAN S LEY C LINDSTROM G LINDSTROEM M LINK J LINSEL F LIPINSKI J LIST B LOBO G LOHMANDER H LOMAS JW LOPEZ GC LUBIMOV V LUKE D MAGNUSSEN N MALINOVSKI E MANI S 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 MERZ T 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 NEWMAN PR NEWTON D NEYRET D NGUYEN HK NICHOLLS TC NIEBERGALL F NIEBUHR C NIEDZBALLA C NIGGLI H NISIUS R NOWAK G NOYES GW NYBERGWERTHER M OAKDEN M OBERLACK H OBROCK U OLSSON JE OZEROV D PALMEN P PANARO E PANITCH A PASCAUD C PATEL GD PAWLETTA H PEPPEL E PEREZ E PHILLIPS JP PIEUCHOT A POPE G PRELL S PROSI R RABBERTZ K RADEL G RAUPACH F REIMER P REINSHAGEN S RICK H RIECH V RIEDLBERGER J 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 SAHLMANN N 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 SEIDEL M SELL R SEMENOV A SHEVIAKOV I SHTARKOV LN SIEGMON G SIEWERT U SIROIS Y SKILLICORN IO SMIRNOV P SMITH JR SOLOCHENKO V SOLOVIEV Y SPECKA A SPIEKERMANN J SPIELMAN S SPITZER H SQUINABOL F STAROSTA R STEENBOCK M STEFFEN P STEINBERG R STEINER H 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 TRUOL P TURNAU J TUTAS J 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 WALTHER A 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 WUNSCH E ZACEK J ZARBOCK D ZHANG Z ZHOKIN A ZIMMER M ZOMER F ZSEMBERY J ZUBER K ZURNEDDEN M
Citation
S. Aid et al., A SEARCH FOR SQUARKS OF RP-VIOLATING SUSY AT HERA, Zeitschrift fur Physik. C, Particles and fields, 71(2), 1996, pp. 211-226
Citations number
45
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
71
Issue
2
Year of publication
1996
Pages
211 - 226
Database
ISI
SICI code
0170-9739(1996)71:2<211:ASFSOR>2.0.ZU;2-R
Abstract
A search for squarks of R-parity violating supersymmetry is performed in ep collisions at HERA using H1 1994 e(+) data. Direct single produc tion of squarks of each generation by e(+)-quark fusion via a Yukawa c oupling lambda' is considered. All possible R-parity violating decays and gauge decays of the squarks are taken into account. No significant deviation from the Standard Model predictions is found in the various multi-lepton and multi-jet final states studied and exclusion limits art derived. At 95% confidence level, the existence of first generatio n squarks is excluded for masses up to 240 GeV for coupling values lam bda' greater than or similar to root 4 pi alpha(em). The limits obtain ed are shown to be only weakly dependent on the free parameters of the Minimal Supersymmetric Standard Model. Stop squarks are excluded for masses up to 138 GeV for coupling lambda' x cos theta(t) to e(+)d pair s greater than or similar to 0.1 x root 4 pi alpha(em) where theta t i s the mass mixing angle. Light stop squarks are furthermore searched f or through pair production in (sic)-gluon fusion processes. No signal is observed and exclusion limits are derived. Masses in the range 9 to 24.4 GeV are excluded at 95% confidence level for lambda' x cos theta (t) > 10(-4).