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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 ...
Search for Hidden-Sector Bosons in B0→K*0μ+μ− Decays
(American Physical Society, 2015-10-16)
A search is presented for hidden-sector bosons, χ, produced in the decay B0→K∗(892)0χ, with K∗(892)0→K+π− and χ→μ+μ−. The search is performed using pp-collision data corresponding to 3.0 fb−1 collected ...
Study of Beauty Hadron Decays into Pairs of Charm Hadrons
(American Physical Society, 2014-05-21)
First observations of the decays Λ0b→Λ+cD−(s) are reported using data corresponding to an integrated luminosity of 3 fb−1 collected at 7 and 8 TeV center-of-mass energies in proton-proton collisions ...
First Observation of CP Violation in the Decays of B0s Mesons
(American Physical Society, 2013-05-30)
Using pp collision data corresponding to an integrated luminosity of 1.0 fb−1 and collected by LHCb in 2011 at a center-of-mass energy of 7 TeV, we report the measurement of direct CP violation in ...
Observation of B(s)(0) → J/ψf(2)'(1525) in J/ψK+ K- final states
(American Physical Society, 2012-04-09)
The decay ¯¯¯B0s→J/ψK+K− is investigated using 0.16 fb−1 of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at higher K+K− masses ...