SEARCH FOR DIPHOTON EVENTS WITH LARGE MISSING TRANSVERSE ENERGY IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV

Authors
ABACHI S ABBOTT B ABOLINS M ACHARYA BS ADAM I ADAMS DL ADAMS M AHN S AIHARA H ALVAREZ G ALVES GA AMIDI E AMOS N ANDERSON EW ARONSON SH ASTUR R BAARMAND MM BADEN A BALAMURALI V BALDERSTON J BALDIN B BANERJEE S BANTLY J BARTLETT JF BAZIZI K BELYAEV A BENDICH J BERI SB BERTRAM I BEZZUBOV VA BHAT PC BHATNAGAR V BHATTACHARJEE M BISCHOFF A BISWAS N BLAZEY G BLESSING S BLOOM P BOEHNLEIN A BOJKO NI BORCHERDING F BORDERS J BOSWELL C BRANDT A BROCK R BROSS A BUCHHOLZ D BURTOVOI VS BUTLER JM CARVALHO W CASEY D CASTILLAVALDEZ H CHAKRABORTY D CHANG SM CHEKULAEV SV CHEN LP CHEN W CHOI S CHOPRA S CHOUDHARY BC CHRISTENSON JH CHUNG M CLAES D CLARK AR COBAU WG COCHRAN J COOPER WE CRETSINGER C CULLENVIDAL D CUMMINGS MAC CUTTS D DAHL OI DE K DELSIGNORE K DEMARTEAU M DENISOV D DENISOV SP DIEHL HT DIESBURG M DILORETO G DRAPER P DRINKARD J DUCROS Y DUDKO LV DUGAD SR EDMUNDS D ELLISON J ELVIRA VD ENGELMANN R ENO S EPPLEY G ERMOLOV P EROSHIN OV EVDOKIMOV VN FAHEY S FAHLAND T FATYGA M FATYGA MK FEATHERLY J FEHER S FEIN D FERBEL T FINOCCHIARO G FISK HE FISYAK Y FLATTUM E FORDEN GE FORTNER M FRAME KC FRANZINI P FUESS S GALLAS E GALYAEV AN GARTUNG P GELD TL GENIK RJ GENSER K GERBER CE GIBBARD B GLEBOV V GLENN S GOBBI B GOFORTH M GOLDSCHMIDT A GOMEZ B GOMEZ G GONCHAROV PI SOLIS JLG GORDON H GOSS LT GOUSSIOU A GRAF N GRANNIS PD GREEN DR GREEN J GREENLEE H GRIFFIN G GRIM G GROSSMAN N GRUDBERG P GRUNENDAHL S GUGLIELMO G GUIDA JA GUIDA JM GURYN W GURZHIEV SN GUTIERREZ P GUTNIKOV YE HADLEY NJ HAGGERTY H HAGOPIAN S HAGOPIAN V HAHN KS HALL RE HANSEN S HAUPTMAN JM HEDIN D HEINSON AP HEINTZ U HERNANDEZMONTOYA R HEURING T HIROSKY R HOBBS JD HOENEISEN B HOFTUN JS HSIEH F HU T HU T HUEHN T ITO AS JAMES E JAQUES J JERGER SA JESIK R JIANG JZY JOFFEMINOR T JOHNS K JOHNSON M JONCKHEERE A JONES M JOSTLEIN H JUN SY JUNG CK KAHN S KALBFLEISCH G KANG JS KEHOE R KELLY ML KERTH L KIM CL KIM SK KLATCHKO A KLIMA B KLOCHKOV BI KLOPFENSTEIN C KLYUKHIN VI KOCHETKOV VI KOHLI JM KOLTICK D KOSTRITSKIY AV KOTCHER J KOTWAL AV KOURLAS J KOZELOV AV KOZLOVSKI EA KRANE J KRISHNASWAMY MR KRZYWDZINSKI S KUNORI S LAMI S LAN H LANDSBERG G LAUER B LEBRAT JF LEFLAT A LI H LI J LI YK LIDEMARTEAU QZ LIMA JGR LINCOLN D LINN SL LINNEMANN J LIPTON R LIU Q LIU YC LOBKOWICZ F LOKEN SC LOKOS S LUEKING L LYON AL MACIEL AKA MADARAS RJ MADDEN R MAGANAMENDOZA L MANI S MAO HS MARKELOFF R MARKOSKY L MARSHALL T MARTIN MI MAY B MAYOROV AA MCCARTHY R MCDONALD J MCKIBBEN T MCKINLEY J MCMAHON T MELANSON HL MERRITT KW MIETTINEN H MINCER A DEMIRANDA JM MISHRA CS MOKHOV N MONDAL NK MONTGOMERY HE MOONEY P DAMOTTA H MUDAN M MURPHY C NANG F NARAIN M NARASIMHAM VS NARAYANAN A NEAL HA NEGRET JP NEMETHY P NESIC D NICOLA M NORMAN D OESCH L OGURI V OLTMAN E OSHIMA N OWEN D PADLEY P PANG M PARA A PARK YM PARTRIDGE R PARUA N PATERNO M PERKINS J PETERS M PIEKARZ H PISCHALNIKOV Y PODSTAVKOV VM POPE BG PROSPER HB PROTOPOPESCU S PUSELJIC D QIAN J QUINTAS PZ RAJA R RAJAGOPALAN S RAMIREZ O RAPIDIS PA RASMUSSEN L REUCROFT S RIJSSENBEEK M ROCKWELL T ROE NA RUBINOV P RUCHTI R RUTHERFOORD J SANCHEZHERNANDEZ A SANTORO A SAWYER L SCHAMBERGER RD SCHELLMAN H SCULLI J SHABALINA E SHAFFER C SHANKAR HC SHIVPURI RK SHUPE M SINGH H SINGH JB SIROTENKO V SMART W SMITH A SMITH RP SNIHUR R SNOW GR SNOW J SNYDER S SOLOMON J SOOD PM SOSEBEE M SOTNIKOVA N SOUZA M SPADAFORA AL STEPHENS RW STEVENSON ML STEWART D STOIANOVA DA STOKER D STREETS K STROVINK M SZNAJDER A TAMBURELLO P TARAZI J TARTAGLIA M THOMAS TLT THOMPSON J TRIPPE TG TUTS PM VARELAS N VARNES EW VITITOE D VOLKOV AA VOROBIEV AP WAHL HD WANG G WARCHOL J WATTS G WAYNE M WEERTS H WHITE A WHITE JT WIGHTMAN JA WILLIS S WIMPENNY SJ WIRJAWAN JVD WOMERSLEY J WON E WOOD DR XU H YAMADA R YAMIN P YANAGISAWA C YANG J YASUDA T YEPES P YOSHIKAWA C YOUSSEF S YU J YU Y ZHU Q ZHU ZH ZIEMINSKA D ZIEMINSKI A ZVEREV EG ZYLBERSTEJN A
Citation
S. Abachi et al., SEARCH FOR DIPHOTON EVENTS WITH LARGE MISSING TRANSVERSE ENERGY IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV, Physical review letters, 78(11), 1997, pp. 2070-2074
Citations number
11
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
11
Year of publication
1997
Pages
2070 - 2074
Database
ISI
SICI code
0031-9007(1997)78:11<2070:SFDEWL>2.0.ZU;2-F
Abstract
A search for new physics has been carried out in the channel <p(p)over bar> --> gamma gamma + is not an element of(T), as expected in variou s supersymmetric models. We require two photons with transverse energy E(T)(gamma) > 12 GeV and pseudorapidity \eta(gamma)\ < 1.1. The distr ibution of missing transverse energy (is not an element of(T)) is cons istent with background and no events have is not an element of(T) > 25 GeV. We set limits on production cross sections for selectron, sneutr ino, and neutralino pairs, decaying into photons, which range from abo ut 400 fb to 1 pb depending on the sparticle masses. A general limit o f 185 fb (95% C.L.) is set on sigma(<p(p)over bar> --> gamma gamma is not an element of(T) + X), where E(T)(gamma) > 12 GeV, \eta(gamma)\ < 1.1, and is not an element of(T) > 25 GeV.