Determination of the ratio of b-quark fragmentation fractions fs/fd in pp collisions at √s = 7 TeV with the ATLAS detector
With an integrated luminosity of 2.47 fb−1 recorded by the ATLAS experiment at the LHC, the exclusive decays B0s→J/ψϕ and B0d→J/ψK*0 of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed B0s→J/ψϕ and B0d→J/ψK*0 yields,...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
30 December 2015
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| In: |
Physical review letters
Year: 2015, Jahrgang: 115, Heft: 26, Pages: 1-18 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.115.262001 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.115.262001 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.115.262001 
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| Verfasserangaben: | G. Aad et al.* (ATLAS Collaboration) |
MARC
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| 245 | 1 | 0 | |a Determination of the ratio of b-quark fragmentation fractions fs/fd in pp collisions at √s = 7 TeV with the ATLAS detector |c G. Aad et al.* (ATLAS Collaboration) |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Determination of the ratio of b-quark fragmentation fractions f s / f d in proton-proton collisions at square root s = 7 TeV with the ATLAS detector |
| 264 | 1 | |c 30 December 2015 | |
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| 500 | |a *ATLAS Collaboration: G. Aad, C.F. Anders, V. Andrei, A. Baas, O. Brandt, J.I. Djuvsland, M. Dunford, M. Geisler, P. Hanke, J. Jongmanns, E.-E. Kluge, A. Kugel, V. Lang, M. Lisovyi, K. Meier, H. Meyer zu Theenhausen, D. Narrias Villar, S. Schaetzel, V. Scharf, S. Schmitt, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, M. Wessels [und 2827 weitere Personen] | ||
| 500 | |a Im Titel steht der Buchstabe s unter dem Wurzelsymbol | ||
| 500 | |a Gesehen am 13.07.2021 | ||
| 520 | |a With an integrated luminosity of 2.47 fb−1 recorded by the ATLAS experiment at the LHC, the exclusive decays B0s→J/ψϕ and B0d→J/ψK*0 of B mesons produced in pp collisions at √s=7 TeV are used to determine the ratio of fragmentation fractions fs/fd. From the observed B0s→J/ψϕ and B0d→J/ψK*0 yields, the quantity (fs/fd)[B(B0s→J/ψϕ)/B(B0d→J/ψK*0)] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(B0s→J/ψϕ)/B(B0d→J/ψK*0)] yields (fs/fd)=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. | ||
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