Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays
Evidence is reported for a narrow structure near the J/ψ threshold in exclusive B+→J/ψ K+ decays produced in p̄p collisions at s=1.96TeV. 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 luminosit...
| Główni autorzy: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
2009
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| _version_ | 1826301132378472448 |
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| author | Aaltonen, T Adelman, J Akimoto, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartsch, V Bauer, G Beauchemin, P |
| author_facet | Aaltonen, T Adelman, J Akimoto, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartsch, V Bauer, G Beauchemin, P |
| author_sort | Aaltonen, T |
| collection | OXFORD |
| description | Evidence is reported for a narrow structure near the J/ψ threshold in exclusive B+→J/ψ K+ decays produced in p̄p collisions at s=1.96TeV. 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 2.7fb-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/c2 and 11.7-5.0+8.3(stat)±3.7(syst)MeV/c2. © 2009 The American Physical Society. |
| first_indexed | 2024-03-07T05:27:45Z |
| format | Journal article |
| id | oxford-uuid:e126196c-1fe9-4278-a65c-043e89c0c5f8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:27:45Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:e126196c-1fe9-4278-a65c-043e89c0c5f82022-03-27T09:52:30ZEvidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decaysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e126196c-1fe9-4278-a65c-043e89c0c5f8EnglishSymplectic Elements at Oxford2009Aaltonen, TAdelman, JAkimoto, TÁlvarez González, BAmerio, SAmidei, DAnastassov, AAnnovi, AAntos, JApollinari, GApresyan, AArisawa, TArtikov, AAshmanskas, WAttal, AAurisano, AAzfar, FBadgett, WBarbaro-Galtieri, ABarnes, VBarnett, BBarria, PBartsch, VBauer, GBeauchemin, PEvidence is reported for a narrow structure near the J/ψ threshold in exclusive B+→J/ψ K+ decays produced in p̄p collisions at s=1.96TeV. 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 2.7fb-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/c2 and 11.7-5.0+8.3(stat)±3.7(syst)MeV/c2. © 2009 The American Physical Society. |
| spellingShingle | Aaltonen, T Adelman, J Akimoto, T Álvarez González, B Amerio, S Amidei, D Anastassov, A Annovi, A Antos, J Apollinari, G Apresyan, A Arisawa, T Artikov, A Ashmanskas, W Attal, A Aurisano, A Azfar, F Badgett, W Barbaro-Galtieri, A Barnes, V Barnett, B Barria, P Bartsch, V Bauer, G Beauchemin, P Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title | Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title_full | Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title_fullStr | Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title_full_unstemmed | Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title_short | Evidence for a narrow near-threshold structure in the J/ψ mass spectrum in B+→J/ψ K+ decays |
| title_sort | evidence for a narrow near threshold structure in the j ψ mass spectrum in b j ψ k decays |
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