Browsing by Subject "Colliding Beams"

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    Determination of the ratio of b-quark fragmentation fractions fs/ fd in pp collisions at √s = 7 TeV with the ATLAS detector
    (2015) Aad, G; Abbott, B; Abdallah, J; Abdinov, O; Aben, R; Abolins, M; AbouZeid, O S; Abramowicz, H; Abreu, H; Abreu, R; Abulaiti, Y; Acharya, B S; Adamczyk, L; Adams, D L; Adelman, J; Adomeit, S; Adye, T; Affolder, A A; Agatonovic-Jovin, T; Agricola, J; Aguilar-Saavedra, J A; Ahlen, S P; Ahmadov, F; Aielli, G; Akerstedt, H; Åkesson, T P A; Akimov, A V; Alberghi, G L; Albert, J; Albrand, S; Alconada Verzini, M J; Aleksa, M
    With an integrated luminosity of 2.47 fb -1 recorded by the ATLAS experiment at the LHC, the exclusive decays B $$0atop{s}$$→ J / ψ Φ and B $$0atop{d}$$ → J / ψ K * 0 of B mesons produced in p p collisions at √ s = 7 TeV are used to determine the ratio of fragmentation fractions f s / f d .