Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp 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 transvers...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| 格式: | Journal article |
| 語言: | English |
| 出版: |
2011
|
| _version_ | 1826298014177689600 |
|---|---|
| author | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G |
| author_facet | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| 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 pp 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 (σ(bb')) ≲30 fb for m(b') > 375 GeV/c2), and exclude m(b') < 372 GeV/c2 at 95% confidence level assuming a 100% branching ratio of b' to tW. |
| first_indexed | 2024-03-07T04:40:21Z |
| format | Journal article |
| id | oxford-uuid:d1691d7e-10d5-4add-b628-79f26ec30eff |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:40:21Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:d1691d7e-10d5-4add-b628-79f26ec30eff2022-03-27T07:56:54ZSearch for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d1691d7e-10d5-4add-b628-79f26ec30effEnglishSymplectic Elements at Oxford2011Aaltonen, TÁlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GAppel, JApresyan, AArisawa, TArtikov, AAsaadi, JAshmanskas, WAuerbach, BAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartos, PBauce, MBauer, GWe 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 pp 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 (σ(bb')) ≲30 fb for m(b') > 375 GeV/c2), and exclude m(b') < 372 GeV/c2 at 95% confidence level assuming a 100% branching ratio of b' to tW. |
| spellingShingle | Aaltonen, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Appel, J Apresyan, A Arisawa, T Artikov, A Asaadi, J Ashmanskas, W Auerbach, B Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartos, P Bauce, M Bauer, G Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title | Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title_full | Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title_fullStr | Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title_full_unstemmed | Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title_short | Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. |
| title_sort | search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s 1 96 tev |
| work_keys_str_mv | AT aaltonent searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT alvarezgonzalezb searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT amerios searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT amideid searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT anastassova searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT annovia searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT antosj searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT apollinarig searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT appelj searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT apresyana searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT arisawat searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT artikova searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT asaadij searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT ashmanskasw searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT auerbachb searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT aurisanoa searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT azfarf searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT badgettw searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT barbarogaltieria searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT barnesv searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT barnettb searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT barriap searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT bartosp searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT baucem searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev AT bauerg searchforheavybottomlikequarksdecayingtoanelectronormuonandjetsinppcollisionsats196tev |