@article{93a6cb9f75ac432f9bd753a989805f78,
title = "Determination of the Ratio of b -Quark Fragmentation Fractions fs /fd in pp Collisions at s =7 TeV with the ATLAS Detector",
abstract = "With an integrated luminosity of 2.47 fb-1 recorded by the ATLAS experiment at the LHC, the exclusive decays Bs0→J/ψφ and Bd0→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 Bs0→J/ψφ and Bd0→J/ψK∗0 yields, the quantity (fs/fd)[B(Bs0→J/ψφ)/B(Bd0→J/ψK∗0)] is measured to be 0.199±0.004(stat)±0.008(syst). Using a recent theory prediction for [B(Bs0→J/ψφ)/B(Bd0→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.",
author = "Black, \{J. E.\} and M. Bosman and Casado, \{M. P.\} and Y. Chen and Edwards, \{N. C.\} and S. Grinstein and J. Guo and Y. Guo and S. Gupta and Hansen, \{J. D.\} and Hansen, \{J. D.\} and K. Hara and S. Heim and X. Hu and G. Hughes and \{Juste Rozas\}, A. and M. Leyton and B. Li and Li, \{H. L.\} and Li, \{H. L.\} and X. Li and Y. Li and B. Liu and D. Liu and J. Liu and J. Liu and Y. Liu and \{Lopez Paz\}, I. and J. Meyer and J. Meyer and A. Morton and Nguyen, \{D. H.\} and \{Pacheco Pages\}, A. and \{Padilla Aranda\}, C. and \{Perez Codina\}, E. and A. Ruiz-Martinez and A. Sanchez and J. S{\'a}nchez and L. Shi and D. Simon and X. Sun and S. Suzuki and M. Villa and F. Wang and J. Wang and J. Wang and Wilson, \{J. A.\} and H. Zhang and J. Zhang and X. Zhang",
note = "Publisher Copyright: {\textcopyright} 2015 CERN., for the Atlas Collaboration. Published by the American Physical Society under the terms of the »http://creativecommons.org/licenses/by/3.0/» Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2015",
month = dec,
day = "30",
doi = "10.1103/PhysRevLett.115.262001",
language = "English",
volume = "115",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "26",
}