SEARCH FOR 2ND-GENERATION LEPTOQUARKS IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV

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doi:10.1103/PhysRevLett.75.1012

We present the results of a search for second generation leptoquarks S-2 using 19.3 pb(-1) of data collected at the Collider Detector at Fermilab (CDF) in p (p) over bar collisions at root s = 1.8 TeV during the 1992-93 collider run. We have searched for S-2 (S) over bar(2) pairs assuming that each leptoquark decays to a muon + quark with a branching ratio beta. We find two candidate events, consistent with an expected background of 1.11 +/- 0.48. We obtain upper limits on sigma(pp --> S-2 (S) over bar(2))beta(2) as a function of M(S2). Using a Monte Carlo prediction for S-2 (S) over bar(2) pair production, we exclude M(S2) < 131 GeV/c(2) for beta = 1 and M(S2) < 95 GeV/c(2) for beta = 0.5 at 95% C.L. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.75.1012
Codice identificativo ISI:	WOS:A1995RN00100007
Codice identificativo Scopus:	2-s2.0-4243886446
Handle:	http://hdl.handle.net/11695/3970
Abstract:	We present the results of a search for second generation leptoquarks S-2 using 19.3 pb(-1) of data collected at the Collider Detector at Fermilab (CDF) in p (p) over bar collisions at root s = 1.8 TeV during the 1992-93 collider run. We have searched for S-2 (S) over bar(2) pairs assuming that each leptoquark decays to a muon + quark with a branching ratio beta. We find two candidate events, consistent with an expected background of 1.11 +/- 0.48. We obtain upper limits on sigma(pp --> S-2 (S) over bar(2))beta(2) as a function of M(S2). Using a Monte Carlo prediction for S-2 (S) over bar(2) pair production, we exclude M(S2) < 131 GeV/c(2) for beta = 1 and M(S2) < 95 GeV/c(2) for beta = 0.5 at 95% C.L. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Titolo:	SEARCH FOR 2ND-GENERATION LEPTOQUARKS IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV
Autori:	ABE F ALBROW MG AMENDOLIA SR AMIDEI D ANTOS J ANWAYWIESE C APOLLINARI G ARETI H ATAC M AUCHINCLOSS P AZFAR F AZZI P BACCHETTA N BADGETT W BAILEY MW BAO J DEBARBARO P BARBAROGALTIERI A BARNES VE BARNETT BA BARTALINI P BAUER G BAUMANN T BEDESCHI F BEHRENDS S BELFORTE S BELLETTINI G BELLINGER J BENJAMIN D BENLLOCH J BENSINGER J BENTON D BERETVAS A BERGE JP BERTOLUCCI S BHATTI A BIERY K BINKLEY M BIRD F BISELLO D BLAIR RE BLOCKER C BODEK A BOKHARI W BOLOGNESI V BORTOLETTO D BOSWELL C BOULOS T BRANDENBURG G BROMBERG C BUCKLEYGEER E BUDD HS BURKETT K BUSETTO G BYONWAGNER A BYRUM KL CAMMERATA J CAMPAGNARI C CAMPBELL HI CANER A CARITHERS N CARLSMITH D CASTRO A CEN Y CERVELLI F CHAO HY CHAPMAN J CHENG MT CHIARELLI G CHIKAMATSU T CHIOU CN CHRISTOFEK L CIHANGIR S CLARK AG COBAL K CONTRERAS M CONWAY J COOPER J CORDELLI M COUYOUMTZELIS C CRANE D CUNNINGHAM JD DANIELS T DEJONGH F DELCHAMPS S DELLAGNELLO S DELLORSO M DEMORTIER L DENBY B DENINNO M DERWENT PF DEVLIN T DICKSON M DITTMANN JR DONATI S DRUCKER RB DUNN A EINSWEILER K ELIAS JE ELY R ENGELS E ENO S ERREDE D ERREDE S FAN Q FARHAT B FIORI I FLAUGHER B FOSTER GW FRANKLIN M FRAUTSCHI M FREEMAN J FRIEDMAN J FRISCH H FRY A FUESS TA FUKUI Y FUNAKI S GAGLIARDI G GALEOTTI S GALLINARO M GARFINKEL AF GEER S GERDES DW GIANNETTI P GIOKARIS N GIROMINI P GLADNEY L GLENZINSKI D GOLD M GONZALEZ J GORDON A GOSHAW AT GOULIANOS K GRASSMANN H GREWAL A GROER L GROSSOPILCHER C HABER C HAHN SR HAMILTON P HANDLER R HANS RM HARA K HARRAL B HARRIS RM HAUGER SA HAUSER J HAWK C HEINRICH J CRONINHENNESSY D HOLLEBEEK R HOLLOWAY L HOLSCHER A HONG S HOUK G HU P HUFFMAN BT HUGHES R HURST P HUSTON J HUTH J HYLEN J INCAGLI M INCANDELA J ISO H JENSEN H JESSOP CP JOSHI U KADEL RW KAJFASZ E KAMON T KANEKO T KARDELIS DA KASHA H KATO Y KEEBLE L KENNEDY RD KEPHART R KESTEN P KESTENBAUM D KEUP RM KEUTELIAN H KEYVAN F KIM DH KIM HS KIM SB KIM SH KIM YK KIRSCH L KOEHN P KONDO K KONIGSBERG J KOPP S KORDAS K KOSKA W KOVACS E KOWALD W KRASBERG M KROLL J KRUSE M KUHLMANN SE KUNS E LAASANEN AT LABANCA N LAMMEL S LAMOUREUX JI LECOMPTE T LEONE S LEWIS JD LIMON P LINDGREN M LISS TM LOCKYER N LOOMIS C LONG O LORETI M LOW EH LU J LUCCHESI D LUCHINI CB LUKENS P LYS J MAAS P MAESHIMA K MAGHAKIAN A MAKSIMOVIC P MANGANO M MANSOUR J MARIOTTI M MARRINER JP MARTIN A MATTHEWS JAJ MATTINGLY R MCINTYRE P MELESE P MENZIONE A MESCHI E MICHAIL G MIKAMO S MILLER M MILLER R MIMASHI T MISCETTI S MISHINA M MITSUSHIO H MIYASHITA S MORITA Y MOULDING S MUELLER J MUKHERJEE A MULLER T MUSGRAVE P NAKAE LF NAKANO I NELSON C NEUBERGER D NEWMANHOLMES C NODULMAN L OGAWA S OH SH OHL KE OISHI R OKUSAWA T PAGLIARONE C PAOLETTI R PAPADIMITRIOU V PARK S PATRICK J PAULETTA G PAULINI M PESCARA L PETERS MD PHILLIPS TJ PIACENTINO, Giovanni Maria PILLAI M PLUNKETT R PONDROM L PRODUIT N PROUDFOOT J PTOHOS F PUNZI G RAGAN K RIMONDI F RISTORI L ROACHBELLINO M ROBERTSON WJ RODRIGO T ROMANO J ROSENSON L SAKUMOTO WK SALTZBERG D SANSONI A SCARPINE V SCHINDLER A SCHLABACH P SCHMIDT EE SCHMIDT MP SCHNEIDER O SCIACCA GF SCRIBANO A SEGLER S SEIDEL S SEIYA Y SGANOS G SGOLACCHIA A SHAPIRO M SHAW NM SHEN Q SHEPARD PF SHIMOJIMA M SHOCHET M SIEGRIST J SILL A SINERVO P SINGH P SKARHA J SLIWA K SMITH DA SNIDER FD SONG L SONG T SPALDING J SPIEGEL L SPHICAS P SPIES A STANCO L STEELE J STEFANINI A STRAHL K STRAIT J STUART D SULLIVAN G SUMOROK K SWARTZ RL TAKAHASHI T TAKIKAWA K TARTARELLI F TAYLOR W TENG PK TERAMOTO Y TETHER S THERIOT D THOMAS J THOMAS TL THUN R TIMKO M TIPTON P TITOV A TKACZYK S TOLLEFSON K TOLLESTRUP A TONNISON J DETROCONIZ JF TSENG J TURCOTTE M TURINI N UEMURA N UKEGAWA F UNAL G VANDENBRINK SC VEJCIK S VIDAL R VONDRACEK M VUCINIC D WAGNER RG WAGNER RL WAINER N WALKER RC WANG C WANG CH WANG G WANG J WANG MJ WANG QF WARBURTON A WATTS G WATTS T WEBB R WEI C WENDT C WENZEL H WESTER WC WESTHUSING T WICKLUND AB WICKLUND E WILKINSON R WILLIAMS HH WILSON P WINER BL WOLINSKI J WU DY WU X WYSS J YAGIL A YAO W YASUOKA K YE Y YEH GP YEH P YIN M YOH J YOSEF C YOSHIDA T YOVANOVITCH D YU I YUN JC ZANETTI A ZETTI F ZHANG L ZHANG S ZHANG W ZUCCHELLI S. mostra contributor esterni nascondi contributor esterni
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