Determination of the Ratio of b-quark fragmentation factors f[subscript s]/f[subscript d] in pp collisions at √s = 7 TeV with the ATLAS detector
With an integrated luminosity of 2.47 fb[superscript −1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[0 over s] → J/ψϕ and B[0 over 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[subs...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2016
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| Online Access: | http://hdl.handle.net/1721.1/101618 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826209930869211136 |
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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 | With an integrated luminosity of 2.47 fb[superscript −1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[0 over s] → J/ψϕ and B[0 over 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[subscript d]. From the observed B[0 over s] → J/ψϕ and B[0 over d] → J/ψK[superscript *0] yields, the quantity (f[subscript s]/f[subscript d]) [B(B[0 over s] → J/ψϕ)/B(B[0 over 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[0 over s] → J/ψϕ)/B(B[0 over 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 | 2024-09-23T14:36:03Z |
| format | Article |
| id | mit-1721.1/101618 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:36:03Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1016182022-09-29T09:57:40Z Determination of the Ratio of b-quark fragmentation factors 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. With an integrated luminosity of 2.47 fb[superscript −1] recorded by the ATLAS experiment at the LHC, the exclusive decays B[0 over s] → J/ψϕ and B[0 over 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[subscript d]. From the observed B[0 over s] → J/ψϕ and B[0 over d] → J/ψK[superscript *0] yields, the quantity (f[subscript s]/f[subscript d]) [B(B[0 over s] → J/ψϕ)/B(B[0 over 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[0 over s] → J/ψϕ)/B(B[0 over 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. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2016-03-07T17:56:08Z 2016-03-07T17:56:08Z 2015-12 2015-08 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/101618 Aad, G., B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. AbouZeid, 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 115, no. 26 (December 30, 2015). © 2015 CERN, for the Atlas Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.115.262001 Physical Review Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society American Physical Society |
| spellingShingle | Taylor, Frank E. Determination of the Ratio of b-quark fragmentation factors 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 factors 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 factors 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 factors 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 factors 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 factors 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 factors f subscript s f subscript d in pp collisions at √s 7 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/101618 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke determinationoftheratioofbquarkfragmentationfactorsfsubscriptsfsubscriptdinppcollisionsats7tevwiththeatlasdetector |