Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV
This paper reports a search for nonstandard model topquark resonances, Z′, decaying to tt̅ →W[superscript +]bW-b̅ , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of pp̅ collisions at a...
| প্রধান লেখক: | , , , , |
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| অন্যান্য লেখক: | |
| বিন্যাস: | প্রবন্ধ |
| ভাষা: | en_US |
| প্রকাশিত: |
American Physical Society
2012
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| অনলাইন ব্যবহার করুন: | http://hdl.handle.net/1721.1/71164 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826213556423491584 |
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| author | Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Gomez-Ceballos, Guillelmo Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Gomez-Ceballos, Guillelmo Bauer, Gerry P |
| author_sort | Goncharov, Maxim |
| collection | MIT |
| description | This paper reports a search for nonstandard model topquark resonances, Z′, decaying to tt̅ →W[superscript +]bW-b̅ , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of pp̅ collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb-[superscript 1]. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model in which the Z′ has a width of Γ[subscript Z]′=0.012M[subscriptZ]′. Within this model, we exclude a Z′ boson with masses below 805 GeV/c[superscript 2] at the 95% confidence level. |
| first_indexed | 2024-09-23T15:51:07Z |
| format | Article |
| id | mit-1721.1/71164 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:51:07Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/711642023-02-26T08:03:54Z Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Gomez-Ceballos, Guillelmo Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bauer, Gerry P. Bauer, Gerry P. Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Gomez-Ceballos, Guillelmo This paper reports a search for nonstandard model topquark resonances, Z′, decaying to tt̅ →W[superscript +]bW-b̅ , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of pp̅ collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb-[superscript 1]. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model in which the Z′ has a width of Γ[subscript Z]′=0.012M[subscriptZ]′. Within this model, we exclude a Z′ boson with masses below 805 GeV/c[superscript 2] at the 95% confidence level. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation 2012-06-18T13:20:44Z 2012-06-18T13:20:44Z 2011-10 2011-08 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1089-4918 http://hdl.handle.net/1721.1/71164 Aaltonen, T. et al. “Search for Resonant Production of Tt[over ¯] Decaying to Jets in Pp[over ¯] Collisions at Sqrt[s]=1.96 TeV.” Physical Review D 84.7 (2011). © 2011 American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.84.072003 Physical Review D 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 | Goncharov, Maxim Makhoul, Khaldoun Paus, Christoph M. E. Gomez-Ceballos, Guillelmo Bauer, Gerry P Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title | Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title_full | Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title_fullStr | Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title_full_unstemmed | Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title_short | Search for resonant production of tt̅ decaying to jets in pp̅ collisions at √s=1.96 TeV |
| title_sort | search for resonant production of tt decaying to jets in pp collisions at √s 1 96 tev |
| url | http://hdl.handle.net/1721.1/71164 https://orcid.org/0000-0002-6047-4211 |
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