Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events
We present the first measurement of the mass of the top quark in a sample of tt̅ →ℓν̅ bb̅ qq̅ events (where ℓ=e,μ) selected by identifying jets containing a muon candidate from the semileptonic decay of heavy-flavor hadrons (soft muon b tagging). The pp̅ collision data used correspond to an integr...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/50635 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826200905811230720 |
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| author | Gomez-Ceballos, Guillelmo Choudalakis, Georgios Goncharov, Maxim Hahn, Kristian Allan Henderson, C. Knuteson, Bruce O. Paus, Christoph M. E. Xie, Si Bauer, Gerry P Makhoul, Khaldoun |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Gomez-Ceballos, Guillelmo Choudalakis, Georgios Goncharov, Maxim Hahn, Kristian Allan Henderson, C. Knuteson, Bruce O. Paus, Christoph M. E. Xie, Si Bauer, Gerry P Makhoul, Khaldoun |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We present the first measurement of the mass of the top quark in a sample of tt̅ →ℓν̅ bb̅ qq̅ events (where ℓ=e,μ) selected by identifying jets containing a muon candidate from the semileptonic decay of heavy-flavor hadrons (soft muon b tagging). The pp̅ collision data used correspond to an integrated luminosity of 2 fb-1 and were collected by the CDF II detector at the Fermilab Tevatron Collider. The measurement is based on a novel technique exploiting the invariant mass of a subset of the decay particles, specifically the lepton from the W boson of the t→Wb decay and the muon from a semileptonic b decay. We fit template histograms, derived from simulation of tt̅ events and a modeling of the background, to the mass distribution observed in the data and measure a top quark mass of 180.5±12.0(stat)±3.6(syst) GeV/c2, consistent with the current world average value. |
| first_indexed | 2024-09-23T11:43:15Z |
| format | Article |
| id | mit-1721.1/50635 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:43:15Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/506352023-02-26T10:32:12Z Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events Gomez-Ceballos, Guillelmo Choudalakis, Georgios Goncharov, Maxim Hahn, Kristian Allan Henderson, C. Knuteson, Bruce O. Paus, Christoph M. E. Xie, Si Bauer, Gerry P Makhoul, Khaldoun Massachusetts Institute of Technology. Laboratory for Nuclear Science Gomez-Ceballos, Guillelmo Xie, Si Paus, Christoph M. E. Makhoul, K. Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Goncharov, Maxim Choudalakis, Georgios Gomez-Ceballos, Guillelmo Bauer, Gerry P. We present the first measurement of the mass of the top quark in a sample of tt̅ →ℓν̅ bb̅ qq̅ events (where ℓ=e,μ) selected by identifying jets containing a muon candidate from the semileptonic decay of heavy-flavor hadrons (soft muon b tagging). The pp̅ collision data used correspond to an integrated luminosity of 2 fb-1 and were collected by the CDF II detector at the Fermilab Tevatron Collider. The measurement is based on a novel technique exploiting the invariant mass of a subset of the decay particles, specifically the lepton from the W boson of the t→Wb decay and the muon from a semileptonic b decay. We fit template histograms, derived from simulation of tt̅ events and a modeling of the background, to the mass distribution observed in the data and measure a top quark mass of 180.5±12.0(stat)±3.6(syst) GeV/c2, consistent with the current world average value. 2010-01-08T15:51:40Z 2010-01-08T15:51:40Z 2009-09 2009-06 Article http://purl.org/eprint/type/JournalArticle http://hdl.handle.net/1721.1/50635 CDF Collaboration et al. “Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events.” Physical Review D 80.5 (2009): 051104. c2009 American Physical Society. https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.80.051104 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 | Gomez-Ceballos, Guillelmo Choudalakis, Georgios Goncharov, Maxim Hahn, Kristian Allan Henderson, C. Knuteson, Bruce O. Paus, Christoph M. E. Xie, Si Bauer, Gerry P Makhoul, Khaldoun Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title | Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title_full | Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title_fullStr | Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title_full_unstemmed | Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title_short | Measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b-tagged events |
| title_sort | measurement of the top quark mass using the invariant mass of lepton pairs in soft muon b tagged events |
| url | http://hdl.handle.net/1721.1/50635 https://orcid.org/0000-0002-6047-4211 |
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