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Now showing items 21-30 of 83
Measurement of CP Violation in the Phase Space of B±→K±π+π− and B±→K±K+K− Decays
(American Physical Society, 2013-09-03)
The charmless decays B±→K±π+π− and B±→K±K+K− are reconstructed using data, corresponding to an integrated luminosity of 1.0 fb−1, collected by LHCb in 2011. The inclusive charge asymmetries of these ...
Differential Branching Fraction and Angular Analysis of the Decay B0 → K*0 μ+ μ−
(American Physical Society, 2012-05-03)
The angular distributions and the partial branching fraction of the decay B0→K*0μ+μ− are studied by using an integrated luminosity of 0.37 fb−1 of data collected with the LHCb detector. The forward-backward ...
Test of Lepton Universality Using B+→K+ℓ+ℓ− Decays
(American Physical Society, 2014-10-06)
A measurement of the ratio of the branching fractions of the B+→K+μ+μ− and B+→K+e+e− decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb−1, ...
Observation of the decay B+c → ψ(2S)π+
(American Physical Society, 2013-04-26)
The decay B+c→ψ(2S)π+ with ψ(2S)→μ+μ− is observed with a significance of 5.2σ using pp collision data corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment. The branching ...
Measurements of the branching fractions and CP asymmetries of B± → J/ψ π± and B± → ψ(2S) π± decays
(American Physical Society, 2012-05-07)
A study of B±→J/ψπ± and B±→ψ(2S)π± decays is performed with data corresponding to 0.37 fb−1 of proton-proton collisions at √s=7 TeV. Their branching fractions are found to be B(B±→J/ψπ±)=(3.88±0.11± ...
Determination of γ and −2βs from charmless two-body decays of beauty mesons
(Elsevier, 2015-02-04)
Using the latest LHCb measurements of time-dependent CP violation in the B-s(0) -> K+K- decay, a U-spin relation between the decay amplitudes of B-s(0) -> K+K- and B-0 -> p(+)p(-) decay processes allows ...
A study of CP violation in B±→DK± and B±→Dπ± decays with D→K0SK±π∓ final states
(Elsevier, 2014-06-02)
A first study of CP violation in the decay modes B±→[K0SK±π∓]Dh± and B±→[K0SK∓π±]Dh±, where h labels a K or π meson and D labels a D0 or D⎯⎯⎯0 meson, is performed. The analysis uses the LHCb data set ...
Measurement of the inclusive phi cross-section in pp collisions at sqrt(s) = 7 TeV.
(Elsevier, 2011-07)
The cross-section for inclusive Φ meson production in pp collisions at a centre-of-mass energy of s=7 TeV has been measured with the LHCb detector at the Large Hadron Collider. The differential cross-section ...
Measurement of the CP-violating phase φs in B0s→J/ψπ+π− decays
(Elsevier, 2012-07-18)
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+ ...
Search for direct CP violation in D0 → h−h+ modes using semileptonic B decays
(Elsevier, 2013-06-10)
A search for direct CP violation in D0 -> h- h+ (where h=K or pi) is presented using data corresponding to an integrated luminosity of 1.0 fb^-1 collected in 2011 by LHCb in pp collisions at a centre-of-mass ...