3,124 research outputs found
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst 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)
Supplemental Material - Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction
No full textSupplemental Material for Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction by Nina K. Vollbehr, H. J. Rogier Hoenders, Agna A. Bartels-Velthuis, Peter J. de Jong and Brian D. Ostafin in Journal of Experimental Psychopathology</p
Supplemental Material - Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction
No full textSupplemental Material for Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction by Nina K. Vollbehr, H. J. Rogier Hoenders, Agna A. Bartels-Velthuis, Peter J. de Jong and Brian D. Ostafin in Journal of Experimental Psychopathology</p
Supplemental Material - Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction
No full textSupplemental Material for Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction by Nina K. Vollbehr, H. J. Rogier Hoenders, Agna A. Bartels-Velthuis, Peter J. de Jong and Brian D. Ostafin in Journal of Experimental Psychopathology</p
Supplemental Material - Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction
No full textSupplemental Material for Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction by Nina K. Vollbehr, H. J. Rogier Hoenders, Agna A. Bartels-Velthuis, Peter J. de Jong and Brian D. Ostafin in Journal of Experimental Psychopathology</p
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
No full textThe prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Supplemental Material - Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction
No full textSupplemental Material for Brief mindful yoga intervention fails to prevent depression-related outcomes after a dysphoric affect induction by Nina K. Vollbehr, H. J. Rogier Hoenders, Agna A. Bartels-Velthuis, Peter J. de Jong and Brian D. Ostafin in Journal of Experimental Psychopathology</p
De Amsterdamse galerie in een mondiale markt = The galleries of Amsterdam in a global market
No full textMeasurement of the branching fraction
No full textThe B
0
s
→ J/ψK
0
S
branching fraction is measured in a data sample corresponding to 0.41 fb−1
of integrated luminosity collected with the LHCb detector at the LHC. This channel is sensitive to
the penguin contributions affecting the sin 2β measurement from B
0
→ J/ψK
0
S
. The time-integrated
branching fraction is measured to be B(B
0
s
→ J/ψK
0
S
) = (1.83±0.28)×10−5
. This is the most precise
measurement to date
- …
