Search
Now showing items 31-40 of 574
Measurement of the CP-violating phase φsin B0s→J/ψπ+π−decays
(Elsevier, 2014-09)
The mixing-induced CP-violating phase in and decays is measured using the final state in data, taken from 3 fb−1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass ...
Observation of J/ψp Resonances Consistent with Pentaquark States in Λ0b→J/ψK−p Decays
(American Physical Society, 2015-08-12)
Observations of exotic structures in the J/ψp channel, which we refer to as charmonium-pentaquark states, in Λ0b→J/ψK−p decays are presented. The data sample corresponds to an integrated luminosity of ...
Measurement of CP asymmetry in B 0 s → D ∓ s K ± decays
(Springer, 2014-11-13)
We report on measurements of the time-dependent CP violating observables in B 0 s → D ∓ s K ± decays using a dataset corresponding to 1.0 fb−1 of pp collisions recorded with the LHCb detector. We find ...
Analysis of the resonant components in ¯B0s → J/ψ π+ π−
(American Physical Society, 2012-09-17)
The decay ¯¯¯B0s→J/ψπ+π− can be exploited to study CP violation. A detailed understanding of its structure is imperative in order to optimize its usefulness. An analysis of this three-body final state ...
Determination of the X(3872) Meson Quantum Numbers
(American Physical Society, 2013-05-29)
The quantum numbers of the X(3872) meson are determined to be JPC=1++ based on angular correlations in B+→X(3872)K+ decays, where X(3872)→π+π−J/ψ and J/ψ→μ+μ−. The data correspond to 1.0 fb−1 of pp ...
Search for Rare B 0 ( s ) → μ + μ − μ + μ − Decays
(American Physical Society, 2013-05)
A search for the decays
B
0
s
→
μ
+
μ
−
μ
+
μ
−
and
B
0
→
μ
+
μ
−
μ
+
μ
−
is performed using data, corresponding to an integrated luminosity of
1.0
fb
−
1
, collected with the LHCb detector in ...
Measurement of b-hadron branching fractions fortwo-body decays into charmless charged hadrons
(Springer, 2012-10-04)
Based on data corresponding to an integrated luminosity of 0.37 fb−1 collected by the LHCb experiment in 2011, the following ratios of branching fractions are measured:
$
B(B0→π+π−)/B(B0→K+π−)=0.262±0 ...
Determination of the Sign of the Decay Width Difference in the B0s System
(American Physical Society, 2012-06-11)
The interference between the K+K− S-wave and P-wave amplitudes in B0s→J/ψK+K− decays with the K+K− pairs in the region around the ϕ(1020) resonance is used to determine the variation of the difference ...
Determination of the quark coupling strength |Vub| using baryonic decays
(Nature, 2015-07)
In the Standard Model of particle physics, the strength of the couplings of the b quark to the u and c quarks, |Vub| and |Vcb|, are governed by the coupling of the quarks to the Higgs boson. Using data ...
Observations of B0 s → ψ(2S)η and B0 (s) → ψ(2S)π+π− decays
(Elsevier, 2013-06)
First observations of the B0s→ψ(2S)η,B0→ψ(2S)π+π− and B0s→ψ(2S)π+π− decays are made using a dataset corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment in proton–proton ...