Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector
Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. With an integrated luminosity of 2.47 fb[superscript -1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[superscript 0][subscript s] → J...
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American Physical Society (APS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/115943 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826206221115326464 |
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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 | Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. With an integrated luminosity of 2.47 fb[superscript -1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[superscript 0][subscript s] → J/ψφ and B[superscript 0][subscript d]→J/ψK[superscript ∗0] of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions f[subscript s]/f[superscript d]. From the observed B[superscript 0][subscript s]→J/ψφ and B[superscript 0][subscript d]→J/ψK[superscript ∗0] yields, the quantity (f[subscript s]/f[subscript d])[B(B[superscript 0][subscript s]→J/ψφ)/B(B[superscript 0][subscript d]→J/ψK[superscript ∗0])] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(B[superscript 0][subscript s]→J/ψφ)/B(B[superscript 0][subscript d]→J/ψK[superscript ∗0])] yields (f[subscript s]/f[subscript d])=0.240±0.004(stat)±0.010(syst)±0.017(th). This result is based on a new approach that provides a significant improvement of the world average. |
| first_indexed | 2024-09-23T13:26:00Z |
| format | Article |
| id | mit-1721.1/115943 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T13:26:00Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1159432022-09-28T14:11:39Z Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Taylor, Frank E Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. With an integrated luminosity of 2.47 fb[superscript -1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[superscript 0][subscript s] → J/ψφ and B[superscript 0][subscript d]→J/ψK[superscript ∗0] of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions f[subscript s]/f[superscript d]. From the observed B[superscript 0][subscript s]→J/ψφ and B[superscript 0][subscript d]→J/ψK[superscript ∗0] yields, the quantity (f[subscript s]/f[subscript d])[B(B[superscript 0][subscript s]→J/ψφ)/B(B[superscript 0][subscript d]→J/ψK[superscript ∗0])] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(B[superscript 0][subscript s]→J/ψφ)/B(B[superscript 0][subscript d]→J/ψK[superscript ∗0])] yields (f[subscript s]/f[subscript d])=0.240±0.004(stat)±0.010(syst)±0.017(th). This result is based on a new approach that provides a significant improvement of the world average. National Science Foundation (U.S.) United States. Department of Energy 2018-05-29T18:27:34Z 2018-05-29T18:27:34Z 2015-12 2015-08 2018-05-18T15:38:03Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/115943 Aad, G., et al. “Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector.” Physical Review Letters, vol. 115, no. 26, Dec. 2015. © 2015 CERN., for the Atlas Collaboration. https://orcid.org/0000-0002-7586-7253 http://dx.doi.org/10.1103/PHYSREVLETT.115.262001 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) American Physical Society |
| spellingShingle | Taylor, Frank E Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title | Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title_full | Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title_fullStr | Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title_full_unstemmed | Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title_short | Determination of the Ratio of b -Quark Fragmentation Fractions f[subscript s]/f[subscript d] in pp Collisions at √s = 7 TeV with the ATLAS Detector |
| title_sort | determination of the ratio of b quark fragmentation fractions f subscript s f subscript d in pp collisions at √s 7 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/115943 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke determinationoftheratioofbquarkfragmentationfractionsfsubscriptsfsubscriptdinppcollisionsats7tevwiththeatlasdetector |