Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS
The [subscript χb](nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at √s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb[superscript -1], these states are reconstructed through their radia...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/71579 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826208509804412928 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | The [subscript χb](nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at √s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb[superscript -1], these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ→μ[superscript +]μ[superscript -]. In addition to the mass peaks corresponding to the decay modes χb(1P,2P)→Υ(1S)γ, a new structure centered at a mass of 10.530±0.005(stat)±0.009(syst) GeV is also observed, in both the Υ(1S)γ and Υ(2S)γ decay modes. This structure is interpreted as the [subscript χb](3P) system. |
| first_indexed | 2024-09-23T14:06:46Z |
| format | Article |
| id | mit-1721.1/71579 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:06:46Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/715792022-10-01T19:16:08Z Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Taylor, Frank E. The [subscript χb](nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at √s=7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4 fb[superscript -1], these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ→μ[superscript +]μ[superscript -]. In addition to the mass peaks corresponding to the decay modes χb(1P,2P)→Υ(1S)γ, a new structure centered at a mass of 10.530±0.005(stat)±0.009(syst) GeV is also observed, in both the Υ(1S)γ and Υ(2S)γ decay modes. This structure is interpreted as the [subscript χb](3P) system. 2012-07-11T15:17:40Z 2012-07-11T15:17:40Z 2012-04 2012-02 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/71579 G. Aad et al. (ATLAS Collaboration). "Observation of a New χb State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS" Physical Review Letters 108, 152001 (2012). © 2012 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.108.152001 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 | Taylor, Frank E. Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title | Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title_full | Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title_fullStr | Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title_full_unstemmed | Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title_short | Observation of a New [subscript χb] State in Radiative Transitions to Υ(1S) and Υ(2S) at ATLAS |
| title_sort | observation of a new subscript χb state in radiative transitions to υ 1s and υ 2s at atlas |
| url | http://hdl.handle.net/1721.1/71579 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke observationofanewsubscriptchbstateinradiativetransitionstoy1sandy2satatlas |