Search for the supersymmetric partner of the top quark inpp¯collisions ats=1.96 TeV

Search for the supersymmetric partner of the top quark inpp¯collisions ats=1.96 TeV

T. Aaltonen,B. Álvarez González,S. Amerio,D. Amidei,A. Anastassov,A. Annovi,J. Antos,G. Apollinari,J. A. Appel,A. Apresyan,T. Arisawa,A. Artikov,J. Asaadi,W. Ashmanskas,B. Auerbach,A. Aurisano,F. Azfar,W. Badgett,A. Barbaro-Galtieri,V. E. Barnes,B. A. Barnett,Patrizia Barria,P. Bartos,M. Bauce,G. Bauer,F. Bedeschi,D. Beecher,S. Behari,G. Bellettini,J. Bellinger,D. Benjamin,A. Beretvas,A. Bhatti,M. Binkley,D. Bisello,I. Bizjak,K. R. Bland,C. Blocker,B. Blumenfeld,A. Bocci,Arie Bodek,D. Bortoletto,J. Boudreau,A. Boveia,B. Brau,L. Brigliadori,A. Brisuda,C. Bromberg,E. Brucken,M. Bucciantonio,J. Budagov,H. S. Budd,S. Budd,K. Burkett,G. Busetto,P. Bussey,A. Buzatu,S. Cabrera,C. Calancha,S. Camarda,M. Campanelli,M. Campbell,Florencia Canelli,A. Canepa,B. Carls,D. Carlsmith,R. Carosi,S. Carrillo,S. Carron,B. Casal,M. Casarsa,A. Castro,P. Catastini,D. Cauz,V. Cavaliere,M. Cavalli-Sforza,A. Cerri,L. Cerrito,Y. C. Chen,M. Chertok,G. Chiarelli,G. Chlachidze,F. Chlebana,Fotios Ptochos,D. Chokheli,J. P. Chou,W. H. Chung,Y. S. Chung,C. I. Ciobanu,Maria Agnese Ciocci,A. Clark,D. Clark,G. Compostella,M. E. Convery,J. Conway,M. Corbo,M. Cordelli,C. A. Cox,D. J. Cox,F. Crescioli,C. Cuenca Almenar,J. Cuevas,R. Culbertson,D. Dagenhart,N. D’Ascenzo,M. Datta,P. De Barbaro,Sandro De Cecco,G. De Lorenzo,M. Dell’Orso,C. Deluca,Luc Demortier,J. Deng,M. Deninno,F. Devoto,M. D’Errico,A. Di Canto,B. Di Ruzza,J. R. Dittmann,M. D’Onofrio,S. Donati,P. Dong,T. Dorigo,K. Ebina,A. Elagin,A. Eppig,R. Erbacher,D. Errede,S. Errede,N. Ershaidat,R. Eusebi,H. C. Fang,Sinead Farrington,M. Feindt,J. P. Fernandez,C. Ferrazza,R. Field,G. Flanagan,R. Forrest,Martin J. Frank,M. Franklin,J. C. Freeman,I. Furic,Michele Gallinaro,J. Galyardt,J. E. Garcia,A. F. Garfinkel,P. Garosi,H. Gerberich,E. Gerchtein,Stefano Giagu,V. Giakoumopoulou,Paola Giannetti,K. Gibson,C. M. Ginsburg,N. Giokaris,P. Giromini,M. Giunta,G. Giurgiu,V. Glagolev,D. Glenzinski,M. Gold,D. Goldin,N. Goldschmidt,A. Golossanov,G. Gomez,G. Gomez-Ceballos,M. Goncharov,O. González,Igor Gorelov,A. T. Goshaw,K. Goulianos,A. Gresele,S. Grinstein,C. Grosso-Pilcher,R. C. Group,J. Guimaraes Da Costa,Z. Gunay-Unalan,C. Haber,S. R. Hahn,E. Halkiadakis,A. Hamaguchi,J. Y. Han,F. Happacher,K. Hara,D. Hare,M. Hare,R. F. Harr,K. Hatakeyama,C. Hays,M. Heck,J. Heinrich,M. Herndon,S. Hewamanage,D. Hidas,A. Hocker,W. Hopkins,D. Horn,S. Hou,R. E. Hughes,M. Hurwitz,U. Husemann,N. Hussain,M. Hussein,J. Huston,Gianluca Introzzi,Maurizio Iori,A. Ivanov,E. James,D. Jang,B. Jayatilaka,E. J. Jeon,M. K. Jha,S. Jindariani,W. Johnson,M. Jones,K. K. Joo,Soon Yung Jun,T. R. Junk,T. Kamon,P. E. Karchin,Y. Kato,W. Ketchum,J. Keung,V. Khotilovich,Benjamin Kilminster,D. H. Kim,H. S. Kim,J. E. Kim,M. J. Kim,S. B. Kim,Y. K. Kim,N. Kimura,S. Klimenko,K. Kondo,D. J. Kong,J. Konigsberg,A. Korytov,A. V. Kotwal,M. Kreps,J. Kroll,D. Krop,N. Krumnack,M. Kruse,V. Krutelyov,T. Kuhr,M. Kurata,S. Kwang,A. T. Laasanen,Stefano Lami,S. Lammel,Mark Lancaster,R. L. Lander,K. Lannon,A. Lath,Giuseppe Latino,Ignazio Lazzizzera,T. LeCompte,E. Lee,H. S. Lee,J. S. Lee,S. W. Lee,S. Leo,S. Leone,J. D. Lewis,C.-J. Lin,J. Linacre,M. Lindgren,E. Lipeles,A. Lister,D. O. Litvintsev,C. Liu,Q. Liu,T. Liu,S. Lockwitz,N. S. Lockyer,A. Loginov,D. Lucchesi,J. Lueck,P. Lujan,P. Lukens,G. Lungu,J. Lys,R. Lysak,R. Madrak,K. Maeshima,K. Makhoul,P. Maksimovic,S. Malik,G. Manca,A. Manousakis-Katsikakis,Fabrizio Margaroli,C. Marino,Mario Martinez,R. Martínez-Ballarín,Paolo Mastrandrea,M. Mathis,M. E. Mattson,P. Mazzanti,K. S. McFarland,P. McIntyre,R. McNulty,A. Mehta,P. Mehtala,A. Menzione,C. Mesropian,T. Miao,D. Mietlicki,A. Mitra,H. Miyake,S. Moed,N. Moggi,M. N. Mondragon,C. S. Moon,R. Moore,Michael Joseph Morello,J. Morlock,P. Movilla Fernandez,A. Mukherjee,Th. Muller,P. Murat,M. Mussini,J. Nachtman,Y. Nagai,J. Naganoma,I. Nakano,A. Napier,J. Nett,C. Neu,M. S. Neubauer,Jason Nielsen,L. Nodulman,O. Norniella,E. Nurse,L. Oakes,S. H. Oh,Y. D. Oh,I. Oksuzian,T. Okusawa,R. Orava,L. Ortolan,S. Pagan Griso,C. Pagliarone,E. Palencia,V. Papadimitriou,A. A. Paramonov,J. Patrick,G. Pauletta,M. Paulini,C. Paus,D. E. Pellett,A. Penzo,T. J. Phillips,G. Piacentino,E. Pianori,J. Pilot,K. Pitts,C. Plager,L. Pondrom,K. Potamianos,O. Poukhov,Fedor Prokoshin,A. Pronko,F. Ptohos,E. Pueschel,Giovanni Punzi,J. Pursley,A. Rahaman,V. Ramakrishnan,N. Ranjan,Ignacio Redondo,P. Renton,M. Rescigno,F. Rimondi,L. Ristori,Aidan Robson,T. Rodrigo,T. Rodriguez,E. Rogers,S. Rolli,R. Roser,M. Rossi,F. Ruffini,A. Ruiz,J. Russ,V. Rusu,A. Safonov,W. K. Sakumoto,L. Santi,L. Sartori,Koji Sato,V. Saveliev,Jose Enrique Garcia Navarro,P. Schlabach,A. Schmidt,E. E. Schmidt,M. P. Schmidt,M. Schmitt,T. Schwarz,Luca Scodellaro,A. Scribano,F. Scuri,A. Sedov,S. Seidel,Y. Seiya,A. Semenov,Federico Sforza,A. Sfyrla,S. Z. Shalhout,Tara Shears,P. F. Shepard,M. Shimojima,S. Shiraishi,M. Shochet,I. Shreyber,A. Simonenko,P. Sinervo,A. Sissakian,K. Sliwa,J. R. Smith,F. D. Snider,A. Soha,S. Somalwar,V. Sorin,P.;T. Aaltonen;B. Álvarez González;S. Amerio;D. Amidei;A. Anastassov;A. Annovi;J. Antos;G. Apollinari;J. A. Appel;A. Apresyan;T. Arisawa;A. Artikov;J. Asaadi;W. Ashmanskas;B. Auerbach;A. Aurisano;F. Azfar;W. Badgett;A. Barbaro-Galtieri;V. E. Barnes;B. A. Barnett;Patrizia Barria;P. Bartos;M. Bauce;G. Bauer;F. Bedeschi;D. Beecher;S. Behari;G. Bellettini;J. Bellinger;D. Benjamin;A. Beretvas;A. Bhatti;M. Binkley;D. Bisello;I. Bizjak;K. R. Bland;C. Blocker;B. Blumenfeld;A. Bocci;Arie Bodek;D. Bortoletto;J. Boudreau;A. Boveia;B. Brau;L. Brigliadori;A. Brisuda;C. Bromberg;E. Brucken;M. Bucciantonio;J. Budagov;H. S. Budd;S. Budd;K. Burkett;G. Busetto;P. Bussey;A. Buzatu;S. Cabrera;C. Calancha;S. Camarda;M. Campanelli;M. Campbell;Florencia Canelli;A. Canepa;B. Carls;D. Carlsmith;R. Carosi;S. Carrillo;S. Carron;B. Casal;M. Casarsa;A. Castro;P. Catastini;D. Cauz;V. Cavaliere;M. Cavalli-Sforza;A. Cerri;L. Cerrito;Y. C. Chen;M. Chertok;G. Chiarelli;G. Chlachidze;F. Chlebana;Fotios Ptochos;D. Chokheli;J. P. Chou;W. H. Chung;Y. S. Chung;C. I. Ciobanu;Maria Agnese Ciocci;A. Clark;D. Clark;G. Compostella;M. E. Convery;J. Conway;M. Corbo;M. Cordelli;C. A. Cox;D. J. Cox;F. Crescioli;C. Cuenca Almenar;J. Cuevas;R. Culbertson;D. Dagenhart;N. D’Ascenzo;M. Datta;P. De Barbaro;Sandro De Cecco;G. De Lorenzo;M. Dell’Orso;C. Deluca;Luc Demortier;J. Deng;M. Deninno;F. Devoto;M. D’Errico;A. Di Canto;B. Di Ruzza;J. R. Dittmann;M. D’Onofrio;S. Donati;P. Dong;T. Dorigo;K. Ebina;A. Elagin;A. Eppig;R. Erbacher;D. Errede;S. Errede;N. Ershaidat;R. Eusebi;H. C. Fang;Sinead Farrington;M. Feindt;J. P. Fernandez;C. Ferrazza;R. Field;G. Flanagan;R. Forrest;Martin J. Frank;M. Franklin;J. C. Freeman;I. Furic;Michele Gallinaro;J. Galyardt;J. E. Garcia;A. F. Garfinkel;P. Garosi;H. Gerberich;E. Gerchtein;Stefano Giagu;V. Giakoumopoulou;Paola Giannetti;K. Gibson;C. M. Ginsburg;N. Giokaris;P. Giromini;M. Giunta;G. Giurgiu;V. Glagolev;D. Glenzinski;M. Gold;D. Goldin;N. Goldschmidt;A. Golossanov;G. Gomez;G. Gomez-Ceballos;M. Goncharov;O. González;Igor Gorelov;A. T. Goshaw;K. Goulianos;A. Gresele;S. Grinstein;C. Grosso-Pilcher;R. C. Group;J. Guimaraes Da Costa;Z. Gunay-Unalan;C. Haber;S. R. Hahn;E. Halkiadakis;A. Hamaguchi;J. Y. Han;F. Happacher;K. Hara;D. Hare;M. Hare;R. F. Harr;K. Hatakeyama;C. Hays;M. Heck;J. Heinrich;M. Herndon;S. Hewamanage;D. Hidas;A. Hocker;W. Hopkins;D. Horn;S. Hou;R. E. Hughes;M. Hurwitz;U. Husemann;N. Hussain;M. Hussein;J. Huston;Gianluca Introzzi;Maurizio Iori;A. Ivanov;E. James;D. Jang;B. Jayatilaka;E. J. Jeon;M. K. Jha;S. Jindariani;W. Johnson;M. Jones;K. K. Joo;Soon Yung Jun;T. R. Junk;T. Kamon;P. E. Karchin;Y. Kato;W. Ketchum;J. Keung;V. Khotilovich;Benjamin Kilminster;D. H. Kim;H. S. Kim;J. E. Kim;M. J. Kim;S. B. Kim;Y. K. Kim;N. Kimura;S. Klimenko;K. Kondo;D. J. Kong;J. Konigsberg;A. Korytov;A. V. Kotwal;M. Kreps;J. Kroll;D. Krop;N. Krumnack;M. Kruse;V. Krutelyov;T. Kuhr;M. Kurata;S. Kwang;A. T. Laasanen;Stefano Lami;S. Lammel;Mark Lancaster;R. L. Lander;K. Lannon;A. Lath;Giuseppe Latino;Ignazio Lazzizzera;T. LeCompte;E. Lee;H. S. Lee;J. S. Lee;S. W. Lee;S. Leo;S. Leone;J. D. Lewis;C.-J. Lin;J. Linacre;M. Lindgren;E. Lipeles;A. Lister;D. O. Litvintsev;C. Liu;Q. Liu;T. Liu;S. Lockwitz;N. S. Lockyer;A. Loginov;D. Lucchesi;J. Lueck;P. Lujan;P. Lukens;G. Lungu;J. Lys;R. Lysak;R. Madrak;K. Maeshima;K. Makhoul;P. Maksimovic;S. Malik;G. Manca;A. Manousakis-Katsikakis;Fabrizio Margaroli;C. Marino;Mario Martinez;R. Martínez-Ballarín;Paolo Mastrandrea;M. Mathis;M. E. Mattson;P. Mazzanti;K. S. McFarland;P. McIntyre;R. McNulty;A. Mehta;P. Mehtala;A. Menzione;C. Mesropian;T. Miao;D. Mietlicki;A. Mitra;H. Miyake;S. Moed;N. Moggi;M. N. Mondragon;C. S. Moon;R. Moore;Michael Joseph Morello;J. Morlock;P. Movilla Fernandez;A. Mukherjee;Th. Muller;P. Murat;M. Mussini;J. Nachtman;Y. Nagai;J. Naganoma;I. Nakano;A. Napier;J. Nett;C. Neu;M. S. Neubauer;Jason Nielsen;L. Nodulman;O. Norniella;E. Nurse;L. Oakes;S. H. Oh;Y. D. Oh;I. Oksuzian;T. Okusawa;R. Orava;L. Ortolan;S. Pagan Griso;C. Pagliarone;E. Palencia;V. Papadimitriou;A. A. Paramonov;J. Patrick;G. Pauletta;M. Paulini;C. Paus;D. E. Pellett;A. Penzo;T. J. Phillips;G. Piacentino;E. Pianori;J. Pilot;K. Pitts;C. Plager;L. Pondrom;K. Potamianos;O. Poukhov;Fedor Prokoshin;A. Pronko;F. Ptohos;E. Pueschel;Giovanni Punzi;J. Pursley;A. Rahaman;V. Ramakrishnan;N. Ranjan;Ignacio Redondo;P. Renton;M. Rescigno;F. Rimondi;L. Ristori;Aidan Robson;T. Rodrigo;T. Rodriguez;E. Rogers;S. Rolli;R. Roser;M. Rossi;F. Ruffini;A. Ruiz;J. Russ;V. Rusu;A. Safonov;W. K. Sakumoto;L. Santi;L. Sartori;Koji Sato;V. Saveliev;Jose Enrique Garcia Navarro;P. Schlabach;A. Schmidt;E. E. Schmidt;M. P. Schmidt;M. Schmitt;T. Schwarz;Luca Scodellaro;A. Scribano;F. Scuri;A. Sedov;S. Seidel;Y. Seiya;A. Semenov;Federico Sforza;A. Sfyrla;S. Z. Shalhout;Tara Shears;P. F. Shepard;M. Shimojima;S. Shiraishi;M. Shochet;I. Shreyber;A. Simonenko;P. Sinervo;A. Sissakian;K. Sliwa;J. R. Smith;F. D. Snider;A. Soha;S. Somalwar;V. Sorin;P.;
physical review d 2010 Vol. 82 pp. 092001-
198
sorin,p.2010physicalsearch

Abstract

We present a search for the lightest supersymmetric partner of the top quark in proton-antiproton collisions at a center-of-mass energy s=1.96 TeV. This search was conducted within the framework of the R parity conserving minimal supersymmetric extension of the standard model, assuming the stop decays dominantly to a lepton, a sneutrino, and a bottom quark. We searched for events with two oppositely-charged leptons, at least one jet, and missing transverse energy in a data sample corresponding to an integrated luminosity of 1 fb−1 collected by the Collider Detector at Fermilab experiment. No significant evidence of a stop quark signal was found. Exclusion limits at 95% confidence level in the stop quark versus sneutrino mass plane are set. Stop quark masses up to 180 GeV/c2 are excluded for sneutrino masses around 45 GeV/c2, and sneutrino masses up to 116 GeV/c2 are excluded for stop quark masses around 150 GeV/c2.

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