Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV

We present new limits on resonant tb̅ production in pp̅ collisions at √s=1.96  TeV, using 1.9  fb[superscript -1] of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb̅ mass in events with a lepton, neutrino candidate, and two or three jets, and search...

Full description

Bibliographic Details
Main Authors: Xie, Si, Knuteson, Bruce O., Henderson, C., Hahn, Kristian Allan, Gomez-Ceballos, Guillelmo, Choudalakis, Georgios, Paus, Christoph M. E., Makhoul, Khaldoun, Goncharov, Maxim, Bauer, Gerry P
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2010
Online Access:http://hdl.handle.net/1721.1/51841
https://orcid.org/0000-0002-6047-4211
_version_ 1811097544685518848
author Xie, Si
Knuteson, Bruce O.
Henderson, C.
Hahn, Kristian Allan
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Paus, Christoph M. E.
Makhoul, Khaldoun
Goncharov, Maxim
Bauer, Gerry P
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Xie, Si
Knuteson, Bruce O.
Henderson, C.
Hahn, Kristian Allan
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Paus, Christoph M. E.
Makhoul, Khaldoun
Goncharov, Maxim
Bauer, Gerry P
author_sort Xie, Si
collection MIT
description We present new limits on resonant tb̅ production in pp̅ collisions at √s=1.96  TeV, using 1.9  fb[superscript -1] of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb̅ mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb̅ production as modeled by W′→tb̅ . We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800  GeV/c[superscript 2] at 95% C.L. The cross section for any narrow, resonant tb̅ production between 750 and 950  GeV/c[superscript 2] is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300–950  GeV/c[superscript 2].
first_indexed 2024-09-23T17:01:05Z
format Article
id mit-1721.1/51841
institution Massachusetts Institute of Technology
language en_US
last_indexed 2024-09-23T17:01:05Z
publishDate 2010
publisher American Physical Society
record_format dspace
spelling mit-1721.1/518412023-02-26T04:22:43Z Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV Search for the Production of Narrow tb̅ Resonances in 1.9  fb^(-1) of pp̅ Collisions at √s=1.96  TeV Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Xie, Si Makhoul, K. Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Goncharov, M. Gomez-Ceballos, Guillelmo Choudalakis, Georgios Bauer, Gerry P. Paus, Christoph M. E. We present new limits on resonant tb̅ production in pp̅ collisions at √s=1.96  TeV, using 1.9  fb[superscript -1] of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb̅ mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb̅ production as modeled by W′→tb̅ . We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800  GeV/c[superscript 2] at 95% C.L. The cross section for any narrow, resonant tb̅ production between 750 and 950  GeV/c[superscript 2] is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300–950  GeV/c[superscript 2]. Academy of Finland Slovak R&D Agency Programa Consolider-Ingenio 2010, Spain Ministerio de Ciencia e Innovación, Spain Russian Foundation for Basic Research Institut National de Physique Nucleaire et Physique des Particules/CNRS Royal Society, United Kingdom Science and Technology Facilities Council, United Kingdom Korean Research Foundation Korean Science and Engineering Foundation Bundesministerium für Bildung und Forschung, Germany Alfred P. Sloan Foundation Swiss National Science Foundation National Science Council of the Republic of China Natural Sciences and Engineering Research Council of Canada Ministry of Education, Culture, Sports, Science and Technology of Japan Italian Istituto Nazionale di Fisica Nucleare National Science Foundation United States Department of Energy 2010-03-01T15:11:20Z 2010-03-01T15:11:20Z 2009-07 2009-02 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51841 CDF Collaboration et al. “Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at s=1.96 TeV.” Physical Review Letters 103.4 (2009): 041801. © 2009 The American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.103.041801 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS
spellingShingle Xie, Si
Knuteson, Bruce O.
Henderson, C.
Hahn, Kristian Allan
Gomez-Ceballos, Guillelmo
Choudalakis, Georgios
Paus, Christoph M. E.
Makhoul, Khaldoun
Goncharov, Maxim
Bauer, Gerry P
Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title_full Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title_fullStr Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title_full_unstemmed Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title_short Search for the Production of Narrow tb-bar Resonances in 1.9 fb-1 of pp-bar Collisions at sqrt[s]=1.96 TeV
title_sort search for the production of narrow tb bar resonances in 1 9 fb 1 of pp bar collisions at sqrt s 1 96 tev
url http://hdl.handle.net/1721.1/51841
https://orcid.org/0000-0002-6047-4211
work_keys_str_mv AT xiesi searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT knutesonbruceo searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT hendersonc searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT hahnkristianallan searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT gomezceballosguillelmo searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT choudalakisgeorgios searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT pauschristophme searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT makhoulkhaldoun searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT goncharovmaxim searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT bauergerryp searchfortheproductionofnarrowtbbarresonancesin19fb1ofppbarcollisionsatsqrts196tev
AT xiesi searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT knutesonbruceo searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT hendersonc searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT hahnkristianallan searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT gomezceballosguillelmo searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT choudalakisgeorgios searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT pauschristophme searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT makhoulkhaldoun searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT goncharovmaxim searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev
AT bauergerryp searchfortheproductionofnarrowtbresonancesin19fb1ofppcollisionsats196tev