43,682 research outputs found

    J.-F. Delhay, R. Marquette, J. Naveaux, C. Reynaert, Patrimoine lillois XXe siècle Lille, ville ouverte., 1998

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    Marchand Philippe. J.-F. Delhay, R. Marquette, J. Naveaux, C. Reynaert, Patrimoine lillois XXe siècle Lille, ville ouverte., 1998. In: Revue du Nord, tome 82, n°335-336, Avril-septembre 2000. p. 592

    Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′

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    First evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)

    [Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]

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    Newspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.

    Les représentations des couples homosexuels au TAT

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    International audienceIkiz, S., Camps, F.-D., Dusgor, B., Ikiz, T., Marchand, J.-B., et al

    Les représentations des couples homosexuels au TAT

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    International audienceIkiz, S., Camps, F.-D., Dusgor, B., Ikiz, T., Marchand, J.-B., et al

    Les représentations des couples homosexuels au TAT

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    International audienceIkiz, S., Camps, F.-D., Dusgor, B., Ikiz, T., Marchand, J.-B., et al

    Les représentations des couples homosexuels au TAT

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    International audienceIkiz, S., Camps, F.-D., Dusgor, B., Ikiz, T., Marchand, J.-B., et al

    Les représentations des couples homosexuels au TAT

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    International audienceIkiz, S., Camps, F.-D., Dusgor, B., Ikiz, T., Marchand, J.-B., et al

    Measurement of the CP-violating phase \phi s in Bs->J/\psi\pi+\pi- decays

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    Measurement of the mixing-induced CP-violating phase phi_s in Bs decays is of prime importance in probing new physics. Here 7421 +/- 105 signal events from the dominantly CP-odd final state J/\psi pi+ pi- are selected in 1/fb of pp collision data collected at sqrt{s} = 7 TeV with the LHCb detector. A time-dependent fit to the data yields a value of phi_s=-0.019^{+0.173+0.004}_{-0.174-0.003} rad, consistent with the Standard Model expectation. No evidence of direct CP violation is found
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