Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV
We report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b′) each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse mom...
| Autores: | , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universidad de Cantabria (UC) |
| Repositorio: | UCrea Repositorio Abierto de la Universidad de Cantabria |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unican.es:10902/1942 |
| Acceso en línea: | http://hdl.handle.net/10902/1942 |
| Access Level: | acceso abierto |
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Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeVAaltonen, Timo AnteroÁlvarez González, BárbaraÁlvarez González, BárbaraCasal Laraña, BrunoCuevas Maestro, Francisco JavierGómez Gramuglio, Gervasio|||0000-0002-1077-6553Palencia Cortezón, José EnriqueRodrigo Anoro, TeresaRuiz Jimeno, Alberto|||0000-0002-3639-0368Scodellaro, Luca|||0000-0002-4974-8330Vila Álvarez, Iván |||0000-0002-6797-7209Vilar Cortabitarte, Rocío|||0000-0003-2045-8054Vizán García, Jesús Manuel|||0000-0002-6823-8854We report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b′) each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse momentum by using data from p¯p collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8 fb−1. We observe events consistent with background expectation, calculate upper limits on the b′ pair-production cross section (σb¯ b′≲30fb for mb′>375 GeV/c2), and exclude mb′<372 GeV/c2 at 95% confidence level assuming a 100% branching ratio of b′ to tW. .We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, United Kingdom; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; and the Academy of Finland.American Physical SocietyUniversidad de Cantabria20112011-04-06journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/1942Physical Review Letters, 2011, 106(14), 141803reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/19422026-06-02T12:39:31Z |
| dc.title.none.fl_str_mv |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| title |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| spellingShingle |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV Aaltonen, Timo Antero |
| title_short |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| title_full |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| title_fullStr |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| title_full_unstemmed |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| title_sort |
Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp̅ collisions at √s=1.96 TeV |
| dc.creator.none.fl_str_mv |
Aaltonen, Timo Antero Álvarez González, Bárbara Álvarez González, Bárbara Casal Laraña, Bruno Cuevas Maestro, Francisco Javier Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Palencia Cortezón, José Enrique Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván |||0000-0002-6797-7209 Vilar Cortabitarte, Rocío|||0000-0003-2045-8054 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author |
Aaltonen, Timo Antero |
| author_facet |
Aaltonen, Timo Antero Álvarez González, Bárbara Casal Laraña, Bruno Cuevas Maestro, Francisco Javier Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Palencia Cortezón, José Enrique Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván |||0000-0002-6797-7209 Vilar Cortabitarte, Rocío|||0000-0003-2045-8054 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author_role |
author |
| author2 |
Álvarez González, Bárbara Casal Laraña, Bruno Cuevas Maestro, Francisco Javier Gómez Gramuglio, Gervasio|||0000-0002-1077-6553 Palencia Cortezón, José Enrique Rodrigo Anoro, Teresa Ruiz Jimeno, Alberto|||0000-0002-3639-0368 Scodellaro, Luca|||0000-0002-4974-8330 Vila Álvarez, Iván |||0000-0002-6797-7209 Vilar Cortabitarte, Rocío|||0000-0003-2045-8054 Vizán García, Jesús Manuel|||0000-0002-6823-8854 |
| author2_role |
author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad de Cantabria |
| description |
We report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b′) each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse momentum by using data from p¯p collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8 fb−1. We observe events consistent with background expectation, calculate upper limits on the b′ pair-production cross section (σb¯ b′≲30fb for mb′>375 GeV/c2), and exclude mb′<372 GeV/c2 at 95% confidence level assuming a 100% branching ratio of b′ to tW. . |
| publishDate |
2011 |
| dc.date.none.fl_str_mv |
2011 2011-04-06 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 NA http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10902/1942 |
| url |
http://hdl.handle.net/10902/1942 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
American Physical Society |
| publisher.none.fl_str_mv |
American Physical Society |
| dc.source.none.fl_str_mv |
Physical Review Letters, 2011, 106(14), 141803 reponame:UCrea Repositorio Abierto de la Universidad de Cantabria instname:Universidad de Cantabria (UC) |
| instname_str |
Universidad de Cantabria (UC) |
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UCrea Repositorio Abierto de la Universidad de Cantabria |
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UCrea Repositorio Abierto de la Universidad de Cantabria |
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1869423116760907776 |
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15,301603 |