Search for Pair Production of Light Scalar Top Quarks inpp¯Collisions ats=1.8 TeV

6533b85ffe1ef96bd12c1069

RESEARCH PRODUCT

Search for Pair Production of Light Scalar Top Quarks inpp¯Collisions ats=1.8 TeV

R. K. Shivpuri M. Buehler N. Parua V.v. Abramov Bobby Samir Acharya H. A. Neal K. W. Merritt J. F. Bartlett V. Manankov D. Edmunds J. T. Linnemann V. Sorín K. Yip A. Besson M. Jaffré W. Kahl N. R. Stanton D. R. Claes L. Lueking Andre Sznajder Yuri Gershtein V. A. Bezzubov Vipin Bhatnagar T. C. Bacon J. P. Negret R. P. Smith V. Oguri Pushpalatha C Bhat D. Buchholz M. Sosebee M. Bhattacharjee L. Stutte Michael Shupe Michael Hildreth Andrew White M. Merkin R. Van Kooten R. Partridge X. Zhang S. Krzywdzinski S. Doulas Arnaud Lucotte A.s. Dyshkant P. Krivkova Alexander Kupco J. Estrada D. P. Stoker L. Babukhadia Michael A. Strauss A. V. Kostritskiy Gustaaf Brooijmans Alexander Belyaev Y. A. Yatsunenko K. Gounder V. L. Malyshev C. Han Florian Beaudette Anna Goussiou Sharon Hagopian Harrison Prosper Kaushik De S. Kesisoglou H. Da Motta Sissel Hansen Patrick Slattery H. S. Mao J. Warchol M. B. Przybycien M. B. Przybycien Randy Ruchti K. Papageorgiou Y. Kulik S. Desai A. Stone A. Zylberstejn M. A.c. Cummings D. Mihalcea Raymond Brock Boaz Klima Suman Bala Beri A. Zieminski Andrew Brandt Christos Leonidopoulos V. M. Abazov Neeti Parashar Shuichi Kunori R. Beuselinck Gregory R Snow R. Engelmann Ulrich Heintz F. Lehner F. Lehner A. S. Ito A. Leflat B. Hoeneisen A. Juste V. Vaniev P. M. Tuts Lee Sawyer H. E. Fisk V. E. Kuznetsov E. A. Kozlovsky H.e. Miettinen Vladimir Gavrilov H. Greenlee H. Jöstlein J. Womersley Frank Filthaut Gordon Watts M. Zielinski J. Huang Andrei Nomerotski S. J. De Jong P.f. Ermolov B. Kothari M. Diesburg B. Connolly T. Rockwell Iain Alexander Bertram V. Sirotenko Michael Rijssenbeek S. Tentindo-repond Z. Zhou J. Solomon D. Casey Robert Hirosky R. Piegaia S. Willis V. S. Burtovoi John Hobbs A. Bross P. Demine R. A. Sidwell J. Kotcher A. M. Kalinin O. V. Eroshin E. G. Zverev D. A. Stoyanova A. S. Turcot D. Karmanov S. N. Gurzhiev G. A. Davis D. Coppage Y. Song G. Bernardi Philip Baringer Phillip Gutierrez Harald Fox G. Gutierrez J. Barreto Serban Protopopescu Emanuela Barberis D. A. Wijngaarden Michael Begel S. Banerjee V. N. Evdokimov Gilvan Alves E. Kajfasz Ia Iashvili A. N. Galyaev Marvin Johnson B. G. Pope Y. D. Mutaf V. S. Narasimham Meenakshi Narain L. Groer Thomas G Trippe A. Alton Viatcheslav Stolin K. Bos R. L. Mccarthy D. Chakraborty N. A. Naumann V. Simak D. K. Cho Y. Arnoud S. Fu A. A. Mayorov Elizabeth Gallas T. Mcmahon C. Lundstedt Carlos Avila R. Illingworth A. V. Kozelov M. Gao P. Padley M. A. Strang Sabine Crépé-renaudin S. Reucroft W. E. Cooper Alexey Volkov Elizaveta Shabalina J. M. Hauptman J. Snow H. L. Melanson Q. Xu Don Lincoln Suyong Choi P. W. Balm Daniel John Karmgard Cecilia Elena Gerber Mitchell Wayne H. Schellman J. M. Kohli Tulika Bose V. V. Babintsev Arnaud Duperrin G. Ginther J. T. Eltzroth K. M. Chan S.a. Kahn H. Haggerty R. J. Madaras Jianming Qian Stefan Grünendahl R. Jesik M. Strovink Alexander Khanov S. E.k. Mattingly Jong-sung Yu Mossadek Talby C. Hebert K. A. Johns David H. Adams Alice Bean S. Nelson G. Briskin M. H.g. Souza D. Denisov B. Gómez Jeffrey F. Krane J. M. Heinmiller Srinivasan Rajagopalan Hal Evans Thomas Ferbel Vasken Hagopian D. Hedin Shashikant Dugad H. Weerts S. Chopra F. Canelli Volker Buescher Zeno Dixon Greenwood S. Baffioni M. Demarteau K. Genser F. Blekman Ariel Schwartzman Elemer Nagy H. E. Montgomery S. N. Ahmed M. Fortner N. W. Reay Z. M. Wang Melissa Ridel R. Kehoe Lev Dudko F. Villeneuve-seguier U. Bassler Regina Demina Q. Z. Li Brad Abbott Jing Li Pierre Petroff L. Duflot Alberto Santoro Sebastian Grinstein Yu-tin Huang J. G.r. Lima Daniel Whiteson N.v. Mokhov M. I. Martin A. P. Heinson M. Abolins P. Rubinov G. Steinbruück R. E. Hall Nikos Varelas Bing Zhou Stephen Wimpenny N. K. Mondal A. R. Clark G. D. Alexeev Flera Rizatdinova H. T. Diehl T. A. Bolton T. Marshall A. Boehnlein Darien Wood J. Ellison A. K.a. Maciel Nicholas John Hadley Sa. Jain S. Fuess S. Blessing A. Abdesselam Scott Snyder B. M. Sabirov P. A. Rapidis P. I. Goncharov A. Jonckheere A. P. Vorobiev Stephan Linn N. Oshima C. Miao Daria Zieminska R. D. Schamberger M. A. Kubantsev F. Borcherding G. Sajot Sarah Catherine Eno Heriberto Castilla-valdez Richard B. Lipton A. Baden G. C. Blazey R. Yamada N. Sotnikova R. J. Genik Wendy Taylor A. Patwa S. P. Denisov Roger Moore M. R. Krishnaswamy Sergey Chekulaev C. Luo Mary Beth Adams D. Cutts V. Zutshi Wagner Carvalho Greg Landsberg D. Shpakov K. Soustruznik N. I. Bojko D. O'neil J. N. Butler P. D. Grannis T. Nunnemann B. Baldin Christophe Royon W. M. Lee A. Kharchilava A. Melnitchouk Sergey Kuleshov Victor Daniel Elvira H. D. Wahl D. Bauer M. Zanabria O. Peters T. Yasuda

subject

Physics Quark Particle physics Top quark 010308 nuclear & particles physics High Energy Physics::Phenomenology Tevatron General Physics and Astronomy Supersymmetry 7. Clean energy 01 natural sciences Charm quark Standard Model Nuclear physics Pair production 0103 physical sciences Neutralino High Energy Physics::Experiment 010306 general physics

description

Using 85.2+/-3.6 pb(-1) of p (p) over bar collisions collected at roots=1.8 TeV with the D0 detector at Fermilab's Tevatron Collider, we present the results of a search for direct pair production of scalar top quarks ((t) over bar), the supersymmetric partners of the top quark. We examined events containing two or more jets and missing transverse energy, the signature of light scalar top quark decays to charm quarks and neutralinos. After selections, we observe 27 events while expecting 31.1+/-6.4 events from known standard model processes. Comparing these results to next-to-leading-order production cross sections, we exclude a significant region of (t) over tilde and neutralino phase space. In particular, we exclude the (t) over tilde mass m((t) over tilde)<122 GeV/c(2) for a neutralino mass of 45 GeV/c(2).

year	journal	country	edition	language
2004-06-29	Physical Review Letters

https://doi.org/10.1103/physrevlett.93.011801