Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays
Evidence is reported for a narrow structure near the J/ψϕ threshold in exclusive B+→J/ψϕK+ decays produced in (p)over-bar p collisions at √s=1.96 TeV. A signal of 14±5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integr...
| Main Authors: | , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/50756 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1811083685341954048 |
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| author | Xie, Si Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Goncharov, Maxim Knuteson, Bruce O. Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Xie, Si Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Goncharov, Maxim Knuteson, Bruce O. Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Bauer, Gerry P |
| author_sort | Xie, Si |
| collection | MIT |
| description | Evidence is reported for a narrow structure near the J/ψϕ threshold in exclusive B+→J/ψϕK+ decays produced in (p)over-bar p collisions at √s=1.96 TeV. A signal of 14±5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosity of 2.7 fb-1, collected by the CDF II detector. The mass and natural width of the structure are measured to be 4143.0±2.9(stat)±1.2(syst) MeV/c[superscript 2] and 11.7[subscript -5.0] [superscript +8.3](stat)±3.7(syst) MeV/c[superscript 2]. |
| first_indexed | 2024-09-23T12:37:29Z |
| format | Article |
| id | mit-1721.1/50756 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:37:29Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/507562023-02-26T10:37:44Z Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays Xie, Si Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Goncharov, Maxim Knuteson, Bruce O. Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Bauer, Gerry P Massachusetts Institute of Technology. Laboratory for Nuclear Science Goncharov, Maxim Gomez-Ceballos, Guillelmo Goncharov, Maxim Henderson, C. Xie, Si Hahn, Kristian Allan Paus, Christoph M. E. Knuteson, Bruce O. Choudalakis, Georgios Bauer, Gerry P. Makhoul, K. Evidence is reported for a narrow structure near the J/ψϕ threshold in exclusive B+→J/ψϕK+ decays produced in (p)over-bar p collisions at √s=1.96 TeV. A signal of 14±5 events, with statistical significance in excess of 3.8 standard deviations, is observed in a data sample corresponding to an integrated luminosity of 2.7 fb-1, collected by the CDF II detector. The mass and natural width of the structure are measured to be 4143.0±2.9(stat)±1.2(syst) MeV/c[superscript 2] and 11.7[subscript -5.0] [superscript +8.3](stat)±3.7(syst) MeV/c[superscript 2]. 2010-01-15T15:57:15Z 2010-01-15T15:57:15Z 2009-06 2009-03 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/50756 Aaltonen, T. et al. “Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays.” Physical Review Letters 102.24 (2009): 242002. (C)2010 The American Physical Society. https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.102.242002 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 Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Goncharov, Maxim Knuteson, Bruce O. Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Bauer, Gerry P Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title | Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title_full | Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title_fullStr | Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title_full_unstemmed | Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title_short | Evidence for a Narrow Near-Threshold Structure in the J/ psi phi Mass Spectrum in B+-->J/ psi phi K+ Decays |
| title_sort | evidence for a narrow near threshold structure in the j psi phi mass spectrum in b j psi phi k decays |
| url | http://hdl.handle.net/1721.1/50756 https://orcid.org/0000-0002-6047-4211 |
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